btrfs: root->fs_info cleanup, add fs_info convenience variables
In routines where someptr->fs_info is referenced multiple times, we
introduce a convenience variable. This makes the code considerably
more readable.
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
diff --git a/fs/btrfs/check-integrity.c b/fs/btrfs/check-integrity.c
index a6243cc..137883c 100644
--- a/fs/btrfs/check-integrity.c
+++ b/fs/btrfs/check-integrity.c
@@ -646,11 +646,12 @@ static struct btrfsic_dev_state *btrfsic_dev_state_hashtable_lookup(
static int btrfsic_process_superblock(struct btrfsic_state *state,
struct btrfs_fs_devices *fs_devices)
{
- int ret = 0;
+ struct btrfs_fs_info *fs_info = state->fs_info;
struct btrfs_super_block *selected_super;
struct list_head *dev_head = &fs_devices->devices;
struct btrfs_device *device;
struct btrfsic_dev_state *selected_dev_state = NULL;
+ int ret = 0;
int pass;
BUG_ON(NULL == state);
@@ -716,9 +717,8 @@ static int btrfsic_process_superblock(struct btrfsic_state *state,
break;
}
- num_copies =
- btrfs_num_copies(state->fs_info,
- next_bytenr, state->metablock_size);
+ num_copies = btrfs_num_copies(fs_info, next_bytenr,
+ state->metablock_size);
if (state->print_mask & BTRFSIC_PRINT_MASK_NUM_COPIES)
pr_info("num_copies(log_bytenr=%llu) = %d\n",
next_bytenr, num_copies);
@@ -783,6 +783,7 @@ static int btrfsic_process_superblock_dev_mirror(
struct btrfsic_dev_state **selected_dev_state,
struct btrfs_super_block *selected_super)
{
+ struct btrfs_fs_info *fs_info = state->fs_info;
struct btrfs_super_block *super_tmp;
u64 dev_bytenr;
struct buffer_head *bh;
@@ -832,7 +833,7 @@ static int btrfsic_process_superblock_dev_mirror(
superblock_tmp->never_written = 0;
superblock_tmp->mirror_num = 1 + superblock_mirror_num;
if (state->print_mask & BTRFSIC_PRINT_MASK_SUPERBLOCK_WRITE)
- btrfs_info_in_rcu(device->fs_info,
+ btrfs_info_in_rcu(fs_info,
"new initial S-block (bdev %p, %s) @%llu (%s/%llu/%d)",
superblock_bdev,
rcu_str_deref(device->name), dev_bytenr,
@@ -887,9 +888,8 @@ static int btrfsic_process_superblock_dev_mirror(
break;
}
- num_copies =
- btrfs_num_copies(state->fs_info,
- next_bytenr, state->metablock_size);
+ num_copies = btrfs_num_copies(fs_info, next_bytenr,
+ state->metablock_size);
if (state->print_mask & BTRFSIC_PRINT_MASK_NUM_COPIES)
pr_info("num_copies(log_bytenr=%llu) = %d\n",
next_bytenr, num_copies);
@@ -1254,6 +1254,7 @@ static int btrfsic_create_link_to_next_block(
struct btrfs_disk_key *disk_key,
u64 parent_generation)
{
+ struct btrfs_fs_info *fs_info = state->fs_info;
struct btrfsic_block *next_block = NULL;
int ret;
struct btrfsic_block_link *l;
@@ -1262,9 +1263,8 @@ static int btrfsic_create_link_to_next_block(
*next_blockp = NULL;
if (0 == *num_copiesp) {
- *num_copiesp =
- btrfs_num_copies(state->fs_info,
- next_bytenr, state->metablock_size);
+ *num_copiesp = btrfs_num_copies(fs_info, next_bytenr,
+ state->metablock_size);
if (state->print_mask & BTRFSIC_PRINT_MASK_NUM_COPIES)
pr_info("num_copies(log_bytenr=%llu) = %d\n",
next_bytenr, *num_copiesp);
@@ -1390,13 +1390,14 @@ static int btrfsic_handle_extent_data(
struct btrfsic_block_data_ctx *block_ctx,
u32 item_offset, int force_iodone_flag)
{
- int ret;
+ struct btrfs_fs_info *fs_info = state->fs_info;
struct btrfs_file_extent_item file_extent_item;
u64 file_extent_item_offset;
u64 next_bytenr;
u64 num_bytes;
u64 generation;
struct btrfsic_block_link *l;
+ int ret;
file_extent_item_offset = offsetof(struct btrfs_leaf, items) +
item_offset;
@@ -1456,9 +1457,8 @@ static int btrfsic_handle_extent_data(
else
chunk_len = num_bytes;
- num_copies =
- btrfs_num_copies(state->fs_info,
- next_bytenr, state->datablock_size);
+ num_copies = btrfs_num_copies(fs_info, next_bytenr,
+ state->datablock_size);
if (state->print_mask & BTRFSIC_PRINT_MASK_NUM_COPIES)
pr_info("num_copies(log_bytenr=%llu) = %d\n",
next_bytenr, num_copies);
@@ -1533,13 +1533,14 @@ static int btrfsic_map_block(struct btrfsic_state *state, u64 bytenr, u32 len,
struct btrfsic_block_data_ctx *block_ctx_out,
int mirror_num)
{
+ struct btrfs_fs_info *fs_info = state->fs_info;
int ret;
u64 length;
struct btrfs_bio *multi = NULL;
struct btrfs_device *device;
length = len;
- ret = btrfs_map_block(state->fs_info, BTRFS_MAP_READ,
+ ret = btrfs_map_block(fs_info, BTRFS_MAP_READ,
bytenr, &length, &multi, mirror_num);
if (ret) {
@@ -1731,6 +1732,7 @@ static void btrfsic_dump_database(struct btrfsic_state *state)
static int btrfsic_test_for_metadata(struct btrfsic_state *state,
char **datav, unsigned int num_pages)
{
+ struct btrfs_fs_info *fs_info = state->fs_info;
struct btrfs_header *h;
u8 csum[BTRFS_CSUM_SIZE];
u32 crc = ~(u32)0;
@@ -1741,7 +1743,7 @@ static int btrfsic_test_for_metadata(struct btrfsic_state *state,
num_pages = state->metablock_size >> PAGE_SHIFT;
h = (struct btrfs_header *)datav[0];
- if (memcmp(h->fsid, state->fs_info->fsid, BTRFS_UUID_SIZE))
+ if (memcmp(h->fsid, fs_info->fsid, BTRFS_UUID_SIZE))
return 1;
for (i = 0; i < num_pages; i++) {
@@ -2202,6 +2204,7 @@ static int btrfsic_process_written_superblock(
struct btrfsic_block *const superblock,
struct btrfs_super_block *const super_hdr)
{
+ struct btrfs_fs_info *fs_info = state->fs_info;
int pass;
superblock->generation = btrfs_super_generation(super_hdr);
@@ -2275,9 +2278,8 @@ static int btrfsic_process_written_superblock(
break;
}
- num_copies =
- btrfs_num_copies(state->fs_info,
- next_bytenr, BTRFS_SUPER_INFO_SIZE);
+ num_copies = btrfs_num_copies(fs_info, next_bytenr,
+ BTRFS_SUPER_INFO_SIZE);
if (state->print_mask & BTRFSIC_PRINT_MASK_NUM_COPIES)
pr_info("num_copies(log_bytenr=%llu) = %d\n",
next_bytenr, num_copies);
@@ -2699,14 +2701,14 @@ static void btrfsic_cmp_log_and_dev_bytenr(struct btrfsic_state *state,
struct btrfsic_dev_state *dev_state,
u64 dev_bytenr)
{
+ struct btrfs_fs_info *fs_info = state->fs_info;
+ struct btrfsic_block_data_ctx block_ctx;
int num_copies;
int mirror_num;
- int ret;
- struct btrfsic_block_data_ctx block_ctx;
int match = 0;
+ int ret;
- num_copies = btrfs_num_copies(state->fs_info,
- bytenr, state->metablock_size);
+ num_copies = btrfs_num_copies(fs_info, bytenr, state->metablock_size);
for (mirror_num = 1; mirror_num <= num_copies; mirror_num++) {
ret = btrfsic_map_block(state, bytenr, state->metablock_size,
@@ -2909,16 +2911,17 @@ int btrfsic_mount(struct btrfs_root *root,
int ret;
struct btrfsic_state *state;
struct list_head *dev_head = &fs_devices->devices;
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_device *device;
- if (root->fs_info->nodesize & ((u64)PAGE_SIZE - 1)) {
+ if (fs_info->nodesize & ((u64)PAGE_SIZE - 1)) {
pr_info("btrfsic: cannot handle nodesize %d not being a multiple of PAGE_SIZE %ld!\n",
- root->fs_info->nodesize, PAGE_SIZE);
+ fs_info->nodesize, PAGE_SIZE);
return -1;
}
- if (root->fs_info->sectorsize & ((u64)PAGE_SIZE - 1)) {
+ if (fs_info->sectorsize & ((u64)PAGE_SIZE - 1)) {
pr_info("btrfsic: cannot handle sectorsize %d not being a multiple of PAGE_SIZE %ld!\n",
- root->fs_info->sectorsize, PAGE_SIZE);
+ fs_info->sectorsize, PAGE_SIZE);
return -1;
}
state = kzalloc(sizeof(*state), GFP_KERNEL | __GFP_NOWARN | __GFP_REPEAT);
@@ -2940,8 +2943,8 @@ int btrfsic_mount(struct btrfs_root *root,
state->print_mask = print_mask;
state->include_extent_data = including_extent_data;
state->csum_size = 0;
- state->metablock_size = root->fs_info->nodesize;
- state->datablock_size = root->fs_info->sectorsize;
+ state->metablock_size = fs_info->nodesize;
+ state->datablock_size = fs_info->sectorsize;
INIT_LIST_HEAD(&state->all_blocks_list);
btrfsic_block_hashtable_init(&state->block_hashtable);
btrfsic_block_link_hashtable_init(&state->block_link_hashtable);
diff --git a/fs/btrfs/compression.c b/fs/btrfs/compression.c
index e4a8c3a..750bae4 100644
--- a/fs/btrfs/compression.c
+++ b/fs/btrfs/compression.c
@@ -88,10 +88,11 @@ static int btrfs_decompress_bio(int type, struct page **pages_in,
static inline int compressed_bio_size(struct btrfs_root *root,
unsigned long disk_size)
{
- u16 csum_size = btrfs_super_csum_size(root->fs_info->super_copy);
+ struct btrfs_fs_info *fs_info = root->fs_info;
+ u16 csum_size = btrfs_super_csum_size(fs_info->super_copy);
return sizeof(struct compressed_bio) +
- (DIV_ROUND_UP(disk_size, root->fs_info->sectorsize)) * csum_size;
+ (DIV_ROUND_UP(disk_size, fs_info->sectorsize)) * csum_size;
}
static struct bio *compressed_bio_alloc(struct block_device *bdev,
@@ -328,6 +329,7 @@ int btrfs_submit_compressed_write(struct inode *inode, u64 start,
struct page **compressed_pages,
unsigned long nr_pages)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct bio *bio = NULL;
struct btrfs_root *root = BTRFS_I(inode)->root;
struct compressed_bio *cb;
@@ -355,7 +357,7 @@ int btrfs_submit_compressed_write(struct inode *inode, u64 start,
cb->orig_bio = NULL;
cb->nr_pages = nr_pages;
- bdev = BTRFS_I(inode)->root->fs_info->fs_devices->latest_bdev;
+ bdev = fs_info->fs_devices->latest_bdev;
bio = compressed_bio_alloc(bdev, first_byte, GFP_NOFS);
if (!bio) {
@@ -391,8 +393,8 @@ int btrfs_submit_compressed_write(struct inode *inode, u64 start,
* freed before we're done setting it up
*/
atomic_inc(&cb->pending_bios);
- ret = btrfs_bio_wq_end_io(root->fs_info, bio,
- BTRFS_WQ_ENDIO_DATA);
+ ret = btrfs_bio_wq_end_io(fs_info, bio,
+ BTRFS_WQ_ENDIO_DATA);
BUG_ON(ret); /* -ENOMEM */
if (!skip_sum) {
@@ -417,7 +419,7 @@ int btrfs_submit_compressed_write(struct inode *inode, u64 start,
bio_add_page(bio, page, PAGE_SIZE, 0);
}
if (bytes_left < PAGE_SIZE) {
- btrfs_info(BTRFS_I(inode)->root->fs_info,
+ btrfs_info(fs_info,
"bytes left %lu compress len %lu nr %lu",
bytes_left, cb->compressed_len, cb->nr_pages);
}
@@ -427,7 +429,7 @@ int btrfs_submit_compressed_write(struct inode *inode, u64 start,
}
bio_get(bio);
- ret = btrfs_bio_wq_end_io(root->fs_info, bio, BTRFS_WQ_ENDIO_DATA);
+ ret = btrfs_bio_wq_end_io(fs_info, bio, BTRFS_WQ_ENDIO_DATA);
BUG_ON(ret); /* -ENOMEM */
if (!skip_sum) {
@@ -575,6 +577,7 @@ static noinline int add_ra_bio_pages(struct inode *inode,
int btrfs_submit_compressed_read(struct inode *inode, struct bio *bio,
int mirror_num, unsigned long bio_flags)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct extent_io_tree *tree;
struct extent_map_tree *em_tree;
struct compressed_bio *cb;
@@ -634,7 +637,7 @@ int btrfs_submit_compressed_read(struct inode *inode, struct bio *bio,
if (!cb->compressed_pages)
goto fail1;
- bdev = BTRFS_I(inode)->root->fs_info->fs_devices->latest_bdev;
+ bdev = fs_info->fs_devices->latest_bdev;
for (pg_index = 0; pg_index < nr_pages; pg_index++) {
cb->compressed_pages[pg_index] = alloc_page(GFP_NOFS |
@@ -678,8 +681,8 @@ int btrfs_submit_compressed_read(struct inode *inode, struct bio *bio,
PAGE_SIZE) {
bio_get(comp_bio);
- ret = btrfs_bio_wq_end_io(root->fs_info, comp_bio,
- BTRFS_WQ_ENDIO_DATA);
+ ret = btrfs_bio_wq_end_io(fs_info, comp_bio,
+ BTRFS_WQ_ENDIO_DATA);
BUG_ON(ret); /* -ENOMEM */
/*
@@ -696,7 +699,7 @@ int btrfs_submit_compressed_read(struct inode *inode, struct bio *bio,
BUG_ON(ret); /* -ENOMEM */
}
sums += DIV_ROUND_UP(comp_bio->bi_iter.bi_size,
- root->fs_info->sectorsize);
+ fs_info->sectorsize);
ret = btrfs_map_bio(root, comp_bio, mirror_num, 0);
if (ret) {
@@ -719,8 +722,7 @@ int btrfs_submit_compressed_read(struct inode *inode, struct bio *bio,
}
bio_get(comp_bio);
- ret = btrfs_bio_wq_end_io(root->fs_info, comp_bio,
- BTRFS_WQ_ENDIO_DATA);
+ ret = btrfs_bio_wq_end_io(fs_info, comp_bio, BTRFS_WQ_ENDIO_DATA);
BUG_ON(ret); /* -ENOMEM */
if (!(BTRFS_I(inode)->flags & BTRFS_INODE_NODATASUM)) {
diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c
index 431b150..b29c8d8 100644
--- a/fs/btrfs/ctree.c
+++ b/fs/btrfs/ctree.c
@@ -212,21 +212,23 @@ static struct extent_buffer *btrfs_read_lock_root_node(struct btrfs_root *root)
*/
static void add_root_to_dirty_list(struct btrfs_root *root)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
+
if (test_bit(BTRFS_ROOT_DIRTY, &root->state) ||
!test_bit(BTRFS_ROOT_TRACK_DIRTY, &root->state))
return;
- spin_lock(&root->fs_info->trans_lock);
+ spin_lock(&fs_info->trans_lock);
if (!test_and_set_bit(BTRFS_ROOT_DIRTY, &root->state)) {
/* Want the extent tree to be the last on the list */
if (root->objectid == BTRFS_EXTENT_TREE_OBJECTID)
list_move_tail(&root->dirty_list,
- &root->fs_info->dirty_cowonly_roots);
+ &fs_info->dirty_cowonly_roots);
else
list_move(&root->dirty_list,
- &root->fs_info->dirty_cowonly_roots);
+ &fs_info->dirty_cowonly_roots);
}
- spin_unlock(&root->fs_info->trans_lock);
+ spin_unlock(&fs_info->trans_lock);
}
/*
@@ -239,13 +241,14 @@ int btrfs_copy_root(struct btrfs_trans_handle *trans,
struct extent_buffer *buf,
struct extent_buffer **cow_ret, u64 new_root_objectid)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct extent_buffer *cow;
int ret = 0;
int level;
struct btrfs_disk_key disk_key;
WARN_ON(test_bit(BTRFS_ROOT_REF_COWS, &root->state) &&
- trans->transid != root->fs_info->running_transaction->transid);
+ trans->transid != fs_info->running_transaction->transid);
WARN_ON(test_bit(BTRFS_ROOT_REF_COWS, &root->state) &&
trans->transid != root->last_trans);
@@ -271,7 +274,7 @@ int btrfs_copy_root(struct btrfs_trans_handle *trans,
else
btrfs_set_header_owner(cow, new_root_objectid);
- write_extent_buffer_fsid(cow, root->fs_info->fsid);
+ write_extent_buffer_fsid(cow, fs_info->fsid);
WARN_ON(btrfs_header_generation(buf) > trans->transid);
if (new_root_objectid == BTRFS_TREE_RELOC_OBJECTID)
@@ -977,6 +980,7 @@ static noinline int update_ref_for_cow(struct btrfs_trans_handle *trans,
struct extent_buffer *cow,
int *last_ref)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
u64 refs;
u64 owner;
u64 flags;
@@ -1008,7 +1012,7 @@ static noinline int update_ref_for_cow(struct btrfs_trans_handle *trans,
return ret;
if (refs == 0) {
ret = -EROFS;
- btrfs_handle_fs_error(root->fs_info, ret, NULL);
+ btrfs_handle_fs_error(fs_info, ret, NULL);
return ret;
}
} else {
@@ -1069,7 +1073,7 @@ static noinline int update_ref_for_cow(struct btrfs_trans_handle *trans,
ret = btrfs_dec_ref(trans, root, buf, 1);
BUG_ON(ret); /* -ENOMEM */
}
- clean_tree_block(trans, root->fs_info, buf);
+ clean_tree_block(trans, fs_info, buf);
*last_ref = 1;
}
return 0;
@@ -1094,6 +1098,7 @@ static noinline int __btrfs_cow_block(struct btrfs_trans_handle *trans,
struct extent_buffer **cow_ret,
u64 search_start, u64 empty_size)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_disk_key disk_key;
struct extent_buffer *cow;
int level, ret;
@@ -1107,7 +1112,7 @@ static noinline int __btrfs_cow_block(struct btrfs_trans_handle *trans,
btrfs_assert_tree_locked(buf);
WARN_ON(test_bit(BTRFS_ROOT_REF_COWS, &root->state) &&
- trans->transid != root->fs_info->running_transaction->transid);
+ trans->transid != fs_info->running_transaction->transid);
WARN_ON(test_bit(BTRFS_ROOT_REF_COWS, &root->state) &&
trans->transid != root->last_trans);
@@ -1140,7 +1145,7 @@ static noinline int __btrfs_cow_block(struct btrfs_trans_handle *trans,
else
btrfs_set_header_owner(cow, root->root_key.objectid);
- write_extent_buffer_fsid(cow, root->fs_info->fsid);
+ write_extent_buffer_fsid(cow, fs_info->fsid);
ret = update_ref_for_cow(trans, root, buf, cow, &last_ref);
if (ret) {
@@ -1172,7 +1177,7 @@ static noinline int __btrfs_cow_block(struct btrfs_trans_handle *trans,
add_root_to_dirty_list(root);
} else {
WARN_ON(trans->transid != btrfs_header_generation(parent));
- tree_mod_log_insert_key(root->fs_info, parent, parent_slot,
+ tree_mod_log_insert_key(fs_info, parent, parent_slot,
MOD_LOG_KEY_REPLACE, GFP_NOFS);
btrfs_set_node_blockptr(parent, parent_slot,
cow->start);
@@ -1180,7 +1185,7 @@ static noinline int __btrfs_cow_block(struct btrfs_trans_handle *trans,
trans->transid);
btrfs_mark_buffer_dirty(parent);
if (last_ref) {
- ret = tree_mod_log_free_eb(root->fs_info, buf);
+ ret = tree_mod_log_free_eb(fs_info, buf);
if (ret) {
btrfs_abort_transaction(trans, ret);
return ret;
@@ -1400,6 +1405,7 @@ tree_mod_log_rewind(struct btrfs_fs_info *fs_info, struct btrfs_path *path,
static inline struct extent_buffer *
get_old_root(struct btrfs_root *root, u64 time_seq)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct tree_mod_elem *tm;
struct extent_buffer *eb = NULL;
struct extent_buffer *eb_root;
@@ -1409,7 +1415,7 @@ get_old_root(struct btrfs_root *root, u64 time_seq)
u64 logical;
eb_root = btrfs_read_lock_root_node(root);
- tm = __tree_mod_log_oldest_root(root->fs_info, eb_root, time_seq);
+ tm = __tree_mod_log_oldest_root(fs_info, eb_root, time_seq);
if (!tm)
return eb_root;
@@ -1421,7 +1427,7 @@ get_old_root(struct btrfs_root *root, u64 time_seq)
logical = eb_root->start;
}
- tm = tree_mod_log_search(root->fs_info, logical, time_seq);
+ tm = tree_mod_log_search(fs_info, logical, time_seq);
if (old_root && tm && tm->op != MOD_LOG_KEY_REMOVE_WHILE_FREEING) {
btrfs_tree_read_unlock(eb_root);
free_extent_buffer(eb_root);
@@ -1429,8 +1435,9 @@ get_old_root(struct btrfs_root *root, u64 time_seq)
if (WARN_ON(IS_ERR(old) || !extent_buffer_uptodate(old))) {
if (!IS_ERR(old))
free_extent_buffer(old);
- btrfs_warn(root->fs_info,
- "failed to read tree block %llu from get_old_root", logical);
+ btrfs_warn(fs_info,
+ "failed to read tree block %llu from get_old_root",
+ logical);
} else {
eb = btrfs_clone_extent_buffer(old);
free_extent_buffer(old);
@@ -1438,7 +1445,7 @@ get_old_root(struct btrfs_root *root, u64 time_seq)
} else if (old_root) {
btrfs_tree_read_unlock(eb_root);
free_extent_buffer(eb_root);
- eb = alloc_dummy_extent_buffer(root->fs_info, logical);
+ eb = alloc_dummy_extent_buffer(fs_info, logical);
} else {
btrfs_set_lock_blocking_rw(eb_root, BTRFS_READ_LOCK);
eb = btrfs_clone_extent_buffer(eb_root);
@@ -1458,10 +1465,10 @@ get_old_root(struct btrfs_root *root, u64 time_seq)
btrfs_set_header_generation(eb, old_generation);
}
if (tm)
- __tree_mod_log_rewind(root->fs_info, eb, time_seq, tm);
+ __tree_mod_log_rewind(fs_info, eb, time_seq, tm);
else
WARN_ON(btrfs_header_level(eb) != 0);
- WARN_ON(btrfs_header_nritems(eb) > BTRFS_NODEPTRS_PER_BLOCK(root->fs_info));
+ WARN_ON(btrfs_header_nritems(eb) > BTRFS_NODEPTRS_PER_BLOCK(fs_info));
return eb;
}
@@ -1523,17 +1530,18 @@ noinline int btrfs_cow_block(struct btrfs_trans_handle *trans,
struct extent_buffer *parent, int parent_slot,
struct extent_buffer **cow_ret)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
u64 search_start;
int ret;
- if (trans->transaction != root->fs_info->running_transaction)
+ if (trans->transaction != fs_info->running_transaction)
WARN(1, KERN_CRIT "trans %llu running %llu\n",
trans->transid,
- root->fs_info->running_transaction->transid);
+ fs_info->running_transaction->transid);
- if (trans->transid != root->fs_info->generation)
+ if (trans->transid != fs_info->generation)
WARN(1, KERN_CRIT "trans %llu running %llu\n",
- trans->transid, root->fs_info->generation);
+ trans->transid, fs_info->generation);
if (!should_cow_block(trans, root, buf)) {
trans->dirty = true;
@@ -1610,6 +1618,7 @@ int btrfs_realloc_node(struct btrfs_trans_handle *trans,
int start_slot, u64 *last_ret,
struct btrfs_key *progress)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct extent_buffer *cur;
u64 blocknr;
u64 gen;
@@ -1628,11 +1637,11 @@ int btrfs_realloc_node(struct btrfs_trans_handle *trans,
parent_level = btrfs_header_level(parent);
- WARN_ON(trans->transaction != root->fs_info->running_transaction);
- WARN_ON(trans->transid != root->fs_info->generation);
+ WARN_ON(trans->transaction != fs_info->running_transaction);
+ WARN_ON(trans->transid != fs_info->generation);
parent_nritems = btrfs_header_nritems(parent);
- blocksize = root->fs_info->nodesize;
+ blocksize = fs_info->nodesize;
end_slot = parent_nritems - 1;
if (parent_nritems <= 1)
@@ -1666,7 +1675,7 @@ int btrfs_realloc_node(struct btrfs_trans_handle *trans,
continue;
}
- cur = find_extent_buffer(root->fs_info, blocknr);
+ cur = find_extent_buffer(fs_info, blocknr);
if (cur)
uptodate = btrfs_buffer_uptodate(cur, gen, 0);
else
@@ -1711,7 +1720,6 @@ int btrfs_realloc_node(struct btrfs_trans_handle *trans,
return err;
}
-
/*
* search for key in the extent_buffer. The items start at offset p,
* and they are item_size apart. There are 'max' items in p.
@@ -1865,6 +1873,7 @@ static noinline int balance_level(struct btrfs_trans_handle *trans,
struct btrfs_root *root,
struct btrfs_path *path, int level)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct extent_buffer *right = NULL;
struct extent_buffer *mid;
struct extent_buffer *left = NULL;
@@ -1905,7 +1914,7 @@ static noinline int balance_level(struct btrfs_trans_handle *trans,
child = read_node_slot(root, mid, 0);
if (IS_ERR(child)) {
ret = PTR_ERR(child);
- btrfs_handle_fs_error(root->fs_info, ret, NULL);
+ btrfs_handle_fs_error(fs_info, ret, NULL);
goto enospc;
}
@@ -1926,7 +1935,7 @@ static noinline int balance_level(struct btrfs_trans_handle *trans,
path->locks[level] = 0;
path->nodes[level] = NULL;
- clean_tree_block(trans, root->fs_info, mid);
+ clean_tree_block(trans, fs_info, mid);
btrfs_tree_unlock(mid);
/* once for the path */
free_extent_buffer(mid);
@@ -1938,7 +1947,7 @@ static noinline int balance_level(struct btrfs_trans_handle *trans,
return 0;
}
if (btrfs_header_nritems(mid) >
- BTRFS_NODEPTRS_PER_BLOCK(root->fs_info) / 4)
+ BTRFS_NODEPTRS_PER_BLOCK(fs_info) / 4)
return 0;
left = read_node_slot(root, parent, pslot - 1);
@@ -1987,7 +1996,7 @@ static noinline int balance_level(struct btrfs_trans_handle *trans,
if (wret < 0 && wret != -ENOSPC)
ret = wret;
if (btrfs_header_nritems(right) == 0) {
- clean_tree_block(trans, root->fs_info, right);
+ clean_tree_block(trans, fs_info, right);
btrfs_tree_unlock(right);
del_ptr(root, path, level + 1, pslot + 1);
root_sub_used(root, right->len);
@@ -1997,7 +2006,7 @@ static noinline int balance_level(struct btrfs_trans_handle *trans,
} else {
struct btrfs_disk_key right_key;
btrfs_node_key(right, &right_key, 0);
- tree_mod_log_set_node_key(root->fs_info, parent,
+ tree_mod_log_set_node_key(fs_info, parent,
pslot + 1, 0);
btrfs_set_node_key(parent, &right_key, pslot + 1);
btrfs_mark_buffer_dirty(parent);
@@ -2015,7 +2024,7 @@ static noinline int balance_level(struct btrfs_trans_handle *trans,
*/
if (!left) {
ret = -EROFS;
- btrfs_handle_fs_error(root->fs_info, ret, NULL);
+ btrfs_handle_fs_error(fs_info, ret, NULL);
goto enospc;
}
wret = balance_node_right(trans, root, mid, left);
@@ -2031,7 +2040,7 @@ static noinline int balance_level(struct btrfs_trans_handle *trans,
BUG_ON(wret == 1);
}
if (btrfs_header_nritems(mid) == 0) {
- clean_tree_block(trans, root->fs_info, mid);
+ clean_tree_block(trans, fs_info, mid);
btrfs_tree_unlock(mid);
del_ptr(root, path, level + 1, pslot);
root_sub_used(root, mid->len);
@@ -2042,8 +2051,7 @@ static noinline int balance_level(struct btrfs_trans_handle *trans,
/* update the parent key to reflect our changes */
struct btrfs_disk_key mid_key;
btrfs_node_key(mid, &mid_key, 0);
- tree_mod_log_set_node_key(root->fs_info, parent,
- pslot, 0);
+ tree_mod_log_set_node_key(fs_info, parent, pslot, 0);
btrfs_set_node_key(parent, &mid_key, pslot);
btrfs_mark_buffer_dirty(parent);
}
@@ -2090,6 +2098,7 @@ static noinline int push_nodes_for_insert(struct btrfs_trans_handle *trans,
struct btrfs_root *root,
struct btrfs_path *path, int level)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct extent_buffer *right = NULL;
struct extent_buffer *mid;
struct extent_buffer *left = NULL;
@@ -2125,7 +2134,7 @@ static noinline int push_nodes_for_insert(struct btrfs_trans_handle *trans,
btrfs_set_lock_blocking(left);
left_nr = btrfs_header_nritems(left);
- if (left_nr >= BTRFS_NODEPTRS_PER_BLOCK(root->fs_info) - 1) {
+ if (left_nr >= BTRFS_NODEPTRS_PER_BLOCK(fs_info) - 1) {
wret = 1;
} else {
ret = btrfs_cow_block(trans, root, left, parent,
@@ -2143,8 +2152,7 @@ static noinline int push_nodes_for_insert(struct btrfs_trans_handle *trans,
struct btrfs_disk_key disk_key;
orig_slot += left_nr;
btrfs_node_key(mid, &disk_key, 0);
- tree_mod_log_set_node_key(root->fs_info, parent,
- pslot, 0);
+ tree_mod_log_set_node_key(fs_info, parent, pslot, 0);
btrfs_set_node_key(parent, &disk_key, pslot);
btrfs_mark_buffer_dirty(parent);
if (btrfs_header_nritems(left) > orig_slot) {
@@ -2179,7 +2187,7 @@ static noinline int push_nodes_for_insert(struct btrfs_trans_handle *trans,
btrfs_set_lock_blocking(right);
right_nr = btrfs_header_nritems(right);
- if (right_nr >= BTRFS_NODEPTRS_PER_BLOCK(root->fs_info) - 1) {
+ if (right_nr >= BTRFS_NODEPTRS_PER_BLOCK(fs_info) - 1) {
wret = 1;
} else {
ret = btrfs_cow_block(trans, root, right,
@@ -2198,7 +2206,7 @@ static noinline int push_nodes_for_insert(struct btrfs_trans_handle *trans,
struct btrfs_disk_key disk_key;
btrfs_node_key(right, &disk_key, 0);
- tree_mod_log_set_node_key(root->fs_info, parent,
+ tree_mod_log_set_node_key(fs_info, parent,
pslot + 1, 0);
btrfs_set_node_key(parent, &disk_key, pslot + 1);
btrfs_mark_buffer_dirty(parent);
@@ -2230,6 +2238,7 @@ static void reada_for_search(struct btrfs_root *root,
struct btrfs_path *path,
int level, int slot, u64 objectid)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct extent_buffer *node;
struct btrfs_disk_key disk_key;
u32 nritems;
@@ -2250,8 +2259,8 @@ static void reada_for_search(struct btrfs_root *root,
node = path->nodes[level];
search = btrfs_node_blockptr(node, slot);
- blocksize = root->fs_info->nodesize;
- eb = find_extent_buffer(root->fs_info, search);
+ blocksize = fs_info->nodesize;
+ eb = find_extent_buffer(fs_info, search);
if (eb) {
free_extent_buffer(eb);
return;
@@ -2292,6 +2301,7 @@ static void reada_for_search(struct btrfs_root *root,
static noinline void reada_for_balance(struct btrfs_root *root,
struct btrfs_path *path, int level)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
int slot;
int nritems;
struct extent_buffer *parent;
@@ -2310,7 +2320,7 @@ static noinline void reada_for_balance(struct btrfs_root *root,
if (slot > 0) {
block1 = btrfs_node_blockptr(parent, slot - 1);
gen = btrfs_node_ptr_generation(parent, slot - 1);
- eb = find_extent_buffer(root->fs_info, block1);
+ eb = find_extent_buffer(fs_info, block1);
/*
* if we get -eagain from btrfs_buffer_uptodate, we
* don't want to return eagain here. That will loop
@@ -2323,7 +2333,7 @@ static noinline void reada_for_balance(struct btrfs_root *root,
if (slot + 1 < nritems) {
block2 = btrfs_node_blockptr(parent, slot + 1);
gen = btrfs_node_ptr_generation(parent, slot + 1);
- eb = find_extent_buffer(root->fs_info, block2);
+ eb = find_extent_buffer(fs_info, block2);
if (eb && btrfs_buffer_uptodate(eb, gen, 1) != 0)
block2 = 0;
free_extent_buffer(eb);
@@ -2432,6 +2442,7 @@ read_block_for_search(struct btrfs_trans_handle *trans,
struct extent_buffer **eb_ret, int level, int slot,
struct btrfs_key *key, u64 time_seq)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
u64 blocknr;
u64 gen;
struct extent_buffer *b = *eb_ret;
@@ -2441,7 +2452,7 @@ read_block_for_search(struct btrfs_trans_handle *trans,
blocknr = btrfs_node_blockptr(b, slot);
gen = btrfs_node_ptr_generation(b, slot);
- tmp = find_extent_buffer(root->fs_info, blocknr);
+ tmp = find_extent_buffer(fs_info, blocknr);
if (tmp) {
/* first we do an atomic uptodate check */
if (btrfs_buffer_uptodate(tmp, gen, 1) > 0) {
@@ -2517,9 +2528,11 @@ setup_nodes_for_search(struct btrfs_trans_handle *trans,
struct extent_buffer *b, int level, int ins_len,
int *write_lock_level)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
int ret;
+
if ((p->search_for_split || ins_len > 0) && btrfs_header_nritems(b) >=
- BTRFS_NODEPTRS_PER_BLOCK(root->fs_info) - 3) {
+ BTRFS_NODEPTRS_PER_BLOCK(fs_info) - 3) {
int sret;
if (*write_lock_level < level + 1) {
@@ -2540,7 +2553,7 @@ setup_nodes_for_search(struct btrfs_trans_handle *trans,
}
b = p->nodes[level];
} else if (ins_len < 0 && btrfs_header_nritems(b) <
- BTRFS_NODEPTRS_PER_BLOCK(root->fs_info) / 2) {
+ BTRFS_NODEPTRS_PER_BLOCK(fs_info) / 2) {
int sret;
if (*write_lock_level < level + 1) {
@@ -2659,6 +2672,7 @@ int btrfs_search_slot(struct btrfs_trans_handle *trans, struct btrfs_root
*root, struct btrfs_key *key, struct btrfs_path *p, int
ins_len, int cow)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct extent_buffer *b;
int slot;
int ret;
@@ -2714,12 +2728,12 @@ int btrfs_search_slot(struct btrfs_trans_handle *trans, struct btrfs_root
* so we always do read locks
*/
if (p->need_commit_sem)
- down_read(&root->fs_info->commit_root_sem);
+ down_read(&fs_info->commit_root_sem);
b = root->commit_root;
extent_buffer_get(b);
level = btrfs_header_level(b);
if (p->need_commit_sem)
- up_read(&root->fs_info->commit_root_sem);
+ up_read(&fs_info->commit_root_sem);
if (!p->skip_locking)
btrfs_tree_read_lock(b);
} else {
@@ -2942,6 +2956,7 @@ int btrfs_search_slot(struct btrfs_trans_handle *trans, struct btrfs_root
int btrfs_search_old_slot(struct btrfs_root *root, struct btrfs_key *key,
struct btrfs_path *p, u64 time_seq)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct extent_buffer *b;
int slot;
int ret;
@@ -3016,7 +3031,7 @@ int btrfs_search_old_slot(struct btrfs_root *root, struct btrfs_key *key,
btrfs_clear_path_blocking(p, b,
BTRFS_READ_LOCK);
}
- b = tree_mod_log_rewind(root->fs_info, p, b, time_seq);
+ b = tree_mod_log_rewind(fs_info, p, b, time_seq);
if (!b) {
ret = -ENOMEM;
goto done;
@@ -3186,6 +3201,7 @@ static int push_node_left(struct btrfs_trans_handle *trans,
struct btrfs_root *root, struct extent_buffer *dst,
struct extent_buffer *src, int empty)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
int push_items = 0;
int src_nritems;
int dst_nritems;
@@ -3193,7 +3209,7 @@ static int push_node_left(struct btrfs_trans_handle *trans,
src_nritems = btrfs_header_nritems(src);
dst_nritems = btrfs_header_nritems(dst);
- push_items = BTRFS_NODEPTRS_PER_BLOCK(root->fs_info) - dst_nritems;
+ push_items = BTRFS_NODEPTRS_PER_BLOCK(fs_info) - dst_nritems;
WARN_ON(btrfs_header_generation(src) != trans->transid);
WARN_ON(btrfs_header_generation(dst) != trans->transid);
@@ -3218,7 +3234,7 @@ static int push_node_left(struct btrfs_trans_handle *trans,
} else
push_items = min(src_nritems - 8, push_items);
- ret = tree_mod_log_eb_copy(root->fs_info, dst, src, dst_nritems, 0,
+ ret = tree_mod_log_eb_copy(fs_info, dst, src, dst_nritems, 0,
push_items);
if (ret) {
btrfs_abort_transaction(trans, ret);
@@ -3261,6 +3277,7 @@ static int balance_node_right(struct btrfs_trans_handle *trans,
struct extent_buffer *dst,
struct extent_buffer *src)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
int push_items = 0;
int max_push;
int src_nritems;
@@ -3272,7 +3289,7 @@ static int balance_node_right(struct btrfs_trans_handle *trans,
src_nritems = btrfs_header_nritems(src);
dst_nritems = btrfs_header_nritems(dst);
- push_items = BTRFS_NODEPTRS_PER_BLOCK(root->fs_info) - dst_nritems;
+ push_items = BTRFS_NODEPTRS_PER_BLOCK(fs_info) - dst_nritems;
if (push_items <= 0)
return 1;
@@ -3287,13 +3304,13 @@ static int balance_node_right(struct btrfs_trans_handle *trans,
if (max_push < push_items)
push_items = max_push;
- tree_mod_log_eb_move(root->fs_info, dst, push_items, 0, dst_nritems);
+ tree_mod_log_eb_move(fs_info, dst, push_items, 0, dst_nritems);
memmove_extent_buffer(dst, btrfs_node_key_ptr_offset(push_items),
btrfs_node_key_ptr_offset(0),
(dst_nritems) *
sizeof(struct btrfs_key_ptr));
- ret = tree_mod_log_eb_copy(root->fs_info, dst, src, 0,
+ ret = tree_mod_log_eb_copy(fs_info, dst, src, 0,
src_nritems - push_items, push_items);
if (ret) {
btrfs_abort_transaction(trans, ret);
@@ -3324,6 +3341,7 @@ static noinline int insert_new_root(struct btrfs_trans_handle *trans,
struct btrfs_root *root,
struct btrfs_path *path, int level)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
u64 lower_gen;
struct extent_buffer *lower;
struct extent_buffer *c;
@@ -3344,7 +3362,7 @@ static noinline int insert_new_root(struct btrfs_trans_handle *trans,
if (IS_ERR(c))
return PTR_ERR(c);
- root_add_used(root, root->fs_info->nodesize);
+ root_add_used(root, fs_info->nodesize);
memzero_extent_buffer(c, 0, sizeof(struct btrfs_header));
btrfs_set_header_nritems(c, 1);
@@ -3354,8 +3372,8 @@ static noinline int insert_new_root(struct btrfs_trans_handle *trans,
btrfs_set_header_backref_rev(c, BTRFS_MIXED_BACKREF_REV);
btrfs_set_header_owner(c, root->root_key.objectid);
- write_extent_buffer_fsid(c, root->fs_info->fsid);
- write_extent_buffer_chunk_tree_uuid(c, root->fs_info->chunk_tree_uuid);
+ write_extent_buffer_fsid(c, fs_info->fsid);
+ write_extent_buffer_chunk_tree_uuid(c, fs_info->chunk_tree_uuid);
btrfs_set_node_key(c, &lower_key, 0);
btrfs_set_node_blockptr(c, 0, lower->start);
@@ -3393,6 +3411,7 @@ static void insert_ptr(struct btrfs_trans_handle *trans,
struct btrfs_disk_key *key, u64 bytenr,
int slot, int level)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct extent_buffer *lower;
int nritems;
int ret;
@@ -3402,10 +3421,10 @@ static void insert_ptr(struct btrfs_trans_handle *trans,
lower = path->nodes[level];
nritems = btrfs_header_nritems(lower);
BUG_ON(slot > nritems);
- BUG_ON(nritems == BTRFS_NODEPTRS_PER_BLOCK(root->fs_info));
+ BUG_ON(nritems == BTRFS_NODEPTRS_PER_BLOCK(fs_info));
if (slot != nritems) {
if (level)
- tree_mod_log_eb_move(root->fs_info, lower, slot + 1,
+ tree_mod_log_eb_move(fs_info, lower, slot + 1,
slot, nritems - slot);
memmove_extent_buffer(lower,
btrfs_node_key_ptr_offset(slot + 1),
@@ -3413,7 +3432,7 @@ static void insert_ptr(struct btrfs_trans_handle *trans,
(nritems - slot) * sizeof(struct btrfs_key_ptr));
}
if (level) {
- ret = tree_mod_log_insert_key(root->fs_info, lower, slot,
+ ret = tree_mod_log_insert_key(fs_info, lower, slot,
MOD_LOG_KEY_ADD, GFP_NOFS);
BUG_ON(ret < 0);
}
@@ -3438,6 +3457,7 @@ static noinline int split_node(struct btrfs_trans_handle *trans,
struct btrfs_root *root,
struct btrfs_path *path, int level)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct extent_buffer *c;
struct extent_buffer *split;
struct btrfs_disk_key disk_key;
@@ -3465,7 +3485,7 @@ static noinline int split_node(struct btrfs_trans_handle *trans,
ret = push_nodes_for_insert(trans, root, path, level);
c = path->nodes[level];
if (!ret && btrfs_header_nritems(c) <
- BTRFS_NODEPTRS_PER_BLOCK(root->fs_info) - 3)
+ BTRFS_NODEPTRS_PER_BLOCK(fs_info) - 3)
return 0;
if (ret < 0)
return ret;
@@ -3480,7 +3500,7 @@ static noinline int split_node(struct btrfs_trans_handle *trans,
if (IS_ERR(split))
return PTR_ERR(split);
- root_add_used(root, root->fs_info->nodesize);
+ root_add_used(root, fs_info->nodesize);
memzero_extent_buffer(split, 0, sizeof(struct btrfs_header));
btrfs_set_header_level(split, btrfs_header_level(c));
@@ -3488,12 +3508,10 @@ static noinline int split_node(struct btrfs_trans_handle *trans,
btrfs_set_header_generation(split, trans->transid);
btrfs_set_header_backref_rev(split, BTRFS_MIXED_BACKREF_REV);
btrfs_set_header_owner(split, root->root_key.objectid);
- write_extent_buffer_fsid(split, root->fs_info->fsid);
- write_extent_buffer_chunk_tree_uuid(split,
- root->fs_info->chunk_tree_uuid);
+ write_extent_buffer_fsid(split, fs_info->fsid);
+ write_extent_buffer_chunk_tree_uuid(split, fs_info->chunk_tree_uuid);
- ret = tree_mod_log_eb_copy(root->fs_info, split, c, 0,
- mid, c_nritems - mid);
+ ret = tree_mod_log_eb_copy(fs_info, split, c, 0, mid, c_nritems - mid);
if (ret) {
btrfs_abort_transaction(trans, ret);
return ret;
@@ -3560,15 +3578,17 @@ static int leaf_space_used(struct extent_buffer *l, int start, int nr)
noinline int btrfs_leaf_free_space(struct btrfs_root *root,
struct extent_buffer *leaf)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
int nritems = btrfs_header_nritems(leaf);
int ret;
- ret = BTRFS_LEAF_DATA_SIZE(root->fs_info) - leaf_space_used(leaf, 0, nritems);
+
+ ret = BTRFS_LEAF_DATA_SIZE(fs_info) - leaf_space_used(leaf, 0, nritems);
if (ret < 0) {
- btrfs_crit(root->fs_info,
- "leaf free space ret %d, leaf data size %lu, used %d nritems %d",
- ret,
- (unsigned long) BTRFS_LEAF_DATA_SIZE(root->fs_info),
- leaf_space_used(leaf, 0, nritems), nritems);
+ btrfs_crit(fs_info,
+ "leaf free space ret %d, leaf data size %lu, used %d nritems %d",
+ ret,
+ (unsigned long) BTRFS_LEAF_DATA_SIZE(fs_info),
+ leaf_space_used(leaf, 0, nritems), nritems);
}
return ret;
}
@@ -3585,6 +3605,7 @@ static noinline int __push_leaf_right(struct btrfs_trans_handle *trans,
int free_space, u32 left_nritems,
u32 min_slot)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct extent_buffer *left = path->nodes[0];
struct extent_buffer *upper = path->nodes[1];
struct btrfs_map_token token;
@@ -3654,11 +3675,11 @@ static noinline int __push_leaf_right(struct btrfs_trans_handle *trans,
memmove_extent_buffer(right,
btrfs_leaf_data(right) + data_end - push_space,
btrfs_leaf_data(right) + data_end,
- BTRFS_LEAF_DATA_SIZE(root->fs_info) - data_end);
+ BTRFS_LEAF_DATA_SIZE(fs_info) - data_end);
/* copy from the left data area */
copy_extent_buffer(right, left, btrfs_leaf_data(right) +
- BTRFS_LEAF_DATA_SIZE(root->fs_info) - push_space,
+ BTRFS_LEAF_DATA_SIZE(fs_info) - push_space,
btrfs_leaf_data(left) + leaf_data_end(root, left),
push_space);
@@ -3674,7 +3695,7 @@ static noinline int __push_leaf_right(struct btrfs_trans_handle *trans,
/* update the item pointers */
right_nritems += push_items;
btrfs_set_header_nritems(right, right_nritems);
- push_space = BTRFS_LEAF_DATA_SIZE(root->fs_info);
+ push_space = BTRFS_LEAF_DATA_SIZE(fs_info);
for (i = 0; i < right_nritems; i++) {
item = btrfs_item_nr(i);
push_space -= btrfs_token_item_size(right, item, &token);
@@ -3687,7 +3708,7 @@ static noinline int __push_leaf_right(struct btrfs_trans_handle *trans,
if (left_nritems)
btrfs_mark_buffer_dirty(left);
else
- clean_tree_block(trans, root->fs_info, left);
+ clean_tree_block(trans, fs_info, left);
btrfs_mark_buffer_dirty(right);
@@ -3699,7 +3720,7 @@ static noinline int __push_leaf_right(struct btrfs_trans_handle *trans,
if (path->slots[0] >= left_nritems) {
path->slots[0] -= left_nritems;
if (btrfs_header_nritems(path->nodes[0]) == 0)
- clean_tree_block(trans, root->fs_info, path->nodes[0]);
+ clean_tree_block(trans, fs_info, path->nodes[0]);
btrfs_tree_unlock(path->nodes[0]);
free_extent_buffer(path->nodes[0]);
path->nodes[0] = right;
@@ -3814,6 +3835,7 @@ static noinline int __push_leaf_left(struct btrfs_trans_handle *trans,
int free_space, u32 right_nritems,
u32 max_slot)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_disk_key disk_key;
struct extent_buffer *right = path->nodes[0];
int i;
@@ -3870,7 +3892,7 @@ static noinline int __push_leaf_left(struct btrfs_trans_handle *trans,
btrfs_item_nr_offset(0),
push_items * sizeof(struct btrfs_item));
- push_space = BTRFS_LEAF_DATA_SIZE(root->fs_info) -
+ push_space = BTRFS_LEAF_DATA_SIZE(fs_info) -
btrfs_item_offset_nr(right, push_items - 1);
copy_extent_buffer(left, right, btrfs_leaf_data(left) +
@@ -3889,7 +3911,7 @@ static noinline int __push_leaf_left(struct btrfs_trans_handle *trans,
ioff = btrfs_token_item_offset(left, item, &token);
btrfs_set_token_item_offset(left, item,
- ioff - (BTRFS_LEAF_DATA_SIZE(root->fs_info) - old_left_item_size),
+ ioff - (BTRFS_LEAF_DATA_SIZE(fs_info) - old_left_item_size),
&token);
}
btrfs_set_header_nritems(left, old_left_nritems + push_items);
@@ -3903,7 +3925,7 @@ static noinline int __push_leaf_left(struct btrfs_trans_handle *trans,
push_space = btrfs_item_offset_nr(right, push_items - 1) -
leaf_data_end(root, right);
memmove_extent_buffer(right, btrfs_leaf_data(right) +
- BTRFS_LEAF_DATA_SIZE(root->fs_info) - push_space,
+ BTRFS_LEAF_DATA_SIZE(fs_info) - push_space,
btrfs_leaf_data(right) +
leaf_data_end(root, right), push_space);
@@ -3914,7 +3936,7 @@ static noinline int __push_leaf_left(struct btrfs_trans_handle *trans,
}
right_nritems -= push_items;
btrfs_set_header_nritems(right, right_nritems);
- push_space = BTRFS_LEAF_DATA_SIZE(root->fs_info);
+ push_space = BTRFS_LEAF_DATA_SIZE(fs_info);
for (i = 0; i < right_nritems; i++) {
item = btrfs_item_nr(i);
@@ -3927,10 +3949,10 @@ static noinline int __push_leaf_left(struct btrfs_trans_handle *trans,
if (right_nritems)
btrfs_mark_buffer_dirty(right);
else
- clean_tree_block(trans, root->fs_info, right);
+ clean_tree_block(trans, fs_info, right);
btrfs_item_key(right, &disk_key, 0);
- fixup_low_keys(root->fs_info, path, &disk_key, 1);
+ fixup_low_keys(fs_info, path, &disk_key, 1);
/* then fixup the leaf pointer in the path */
if (path->slots[0] < push_items) {
@@ -4036,6 +4058,7 @@ static noinline void copy_for_split(struct btrfs_trans_handle *trans,
struct extent_buffer *right,
int slot, int mid, int nritems)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
int data_copy_size;
int rt_data_off;
int i;
@@ -4053,12 +4076,11 @@ static noinline void copy_for_split(struct btrfs_trans_handle *trans,
nritems * sizeof(struct btrfs_item));
copy_extent_buffer(right, l,
- btrfs_leaf_data(right) + BTRFS_LEAF_DATA_SIZE(root->fs_info) -
+ btrfs_leaf_data(right) + BTRFS_LEAF_DATA_SIZE(fs_info) -
data_copy_size, btrfs_leaf_data(l) +
leaf_data_end(root, l), data_copy_size);
- rt_data_off = BTRFS_LEAF_DATA_SIZE(root->fs_info) -
- btrfs_item_end_nr(l, mid);
+ rt_data_off = BTRFS_LEAF_DATA_SIZE(fs_info) - btrfs_item_end_nr(l, mid);
for (i = 0; i < nritems; i++) {
struct btrfs_item *item = btrfs_item_nr(i);
@@ -4181,7 +4203,7 @@ static noinline int split_leaf(struct btrfs_trans_handle *trans,
l = path->nodes[0];
slot = path->slots[0];
if (extend && data_size + btrfs_item_size_nr(l, slot) +
- sizeof(struct btrfs_item) > BTRFS_LEAF_DATA_SIZE(root->fs_info))
+ sizeof(struct btrfs_item) > BTRFS_LEAF_DATA_SIZE(fs_info))
return -EOVERFLOW;
/* first try to make some room by pushing left and right */
@@ -4223,14 +4245,14 @@ static noinline int split_leaf(struct btrfs_trans_handle *trans,
if (mid <= slot) {
if (nritems == 1 ||
leaf_space_used(l, mid, nritems - mid) + data_size >
- BTRFS_LEAF_DATA_SIZE(root->fs_info)) {
+ BTRFS_LEAF_DATA_SIZE(fs_info)) {
if (slot >= nritems) {
split = 0;
} else {
mid = slot;
if (mid != nritems &&
leaf_space_used(l, mid, nritems - mid) +
- data_size > BTRFS_LEAF_DATA_SIZE(root->fs_info)) {
+ data_size > BTRFS_LEAF_DATA_SIZE(fs_info)) {
if (data_size && !tried_avoid_double)
goto push_for_double;
split = 2;
@@ -4239,7 +4261,7 @@ static noinline int split_leaf(struct btrfs_trans_handle *trans,
}
} else {
if (leaf_space_used(l, 0, mid) + data_size >
- BTRFS_LEAF_DATA_SIZE(root->fs_info)) {
+ BTRFS_LEAF_DATA_SIZE(fs_info)) {
if (!extend && data_size && slot == 0) {
split = 0;
} else if ((extend || !data_size) && slot == 0) {
@@ -4248,7 +4270,7 @@ static noinline int split_leaf(struct btrfs_trans_handle *trans,
mid = slot;
if (mid != nritems &&
leaf_space_used(l, mid, nritems - mid) +
- data_size > BTRFS_LEAF_DATA_SIZE(root->fs_info)) {
+ data_size > BTRFS_LEAF_DATA_SIZE(fs_info)) {
if (data_size && !tried_avoid_double)
goto push_for_double;
split = 2;
@@ -4267,7 +4289,7 @@ static noinline int split_leaf(struct btrfs_trans_handle *trans,
if (IS_ERR(right))
return PTR_ERR(right);
- root_add_used(root, root->fs_info->nodesize);
+ root_add_used(root, fs_info->nodesize);
memzero_extent_buffer(right, 0, sizeof(struct btrfs_header));
btrfs_set_header_bytenr(right, right->start);
@@ -4539,6 +4561,7 @@ int btrfs_duplicate_item(struct btrfs_trans_handle *trans,
void btrfs_truncate_item(struct btrfs_root *root, struct btrfs_path *path,
u32 new_size, int from_end)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
int slot;
struct extent_buffer *leaf;
struct btrfs_item *item;
@@ -4619,7 +4642,7 @@ void btrfs_truncate_item(struct btrfs_root *root, struct btrfs_path *path,
btrfs_set_disk_key_offset(&disk_key, offset + size_diff);
btrfs_set_item_key(leaf, &disk_key, slot);
if (slot == 0)
- fixup_low_keys(root->fs_info, path, &disk_key, 1);
+ fixup_low_keys(fs_info, path, &disk_key, 1);
}
item = btrfs_item_nr(slot);
@@ -4638,6 +4661,7 @@ void btrfs_truncate_item(struct btrfs_root *root, struct btrfs_path *path,
void btrfs_extend_item(struct btrfs_root *root, struct btrfs_path *path,
u32 data_size)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
int slot;
struct extent_buffer *leaf;
struct btrfs_item *item;
@@ -4665,8 +4689,8 @@ void btrfs_extend_item(struct btrfs_root *root, struct btrfs_path *path,
BUG_ON(slot < 0);
if (slot >= nritems) {
btrfs_print_leaf(root, leaf);
- btrfs_crit(root->fs_info, "slot %d too large, nritems %d",
- slot, nritems);
+ btrfs_crit(fs_info, "slot %d too large, nritems %d",
+ slot, nritems);
BUG_ON(1);
}
@@ -4709,6 +4733,7 @@ void setup_items_for_insert(struct btrfs_root *root, struct btrfs_path *path,
struct btrfs_key *cpu_key, u32 *data_size,
u32 total_data, u32 total_size, int nr)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_item *item;
int i;
u32 nritems;
@@ -4720,7 +4745,7 @@ void setup_items_for_insert(struct btrfs_root *root, struct btrfs_path *path,
if (path->slots[0] == 0) {
btrfs_cpu_key_to_disk(&disk_key, cpu_key);
- fixup_low_keys(root->fs_info, path, &disk_key, 1);
+ fixup_low_keys(fs_info, path, &disk_key, 1);
}
btrfs_unlock_up_safe(path, 1);
@@ -4734,8 +4759,7 @@ void setup_items_for_insert(struct btrfs_root *root, struct btrfs_path *path,
if (btrfs_leaf_free_space(root, leaf) < total_size) {
btrfs_print_leaf(root, leaf);
- btrfs_crit(root->fs_info,
- "not enough freespace need %u have %d",
+ btrfs_crit(fs_info, "not enough freespace need %u have %d",
total_size, btrfs_leaf_free_space(root, leaf));
BUG();
}
@@ -4745,8 +4769,7 @@ void setup_items_for_insert(struct btrfs_root *root, struct btrfs_path *path,
if (old_data < data_end) {
btrfs_print_leaf(root, leaf);
- btrfs_crit(root->fs_info,
- "slot %d old_data %d data_end %d",
+ btrfs_crit(fs_info, "slot %d old_data %d data_end %d",
slot, old_data, data_end);
BUG_ON(1);
}
@@ -4864,6 +4887,7 @@ int btrfs_insert_item(struct btrfs_trans_handle *trans, struct btrfs_root
static void del_ptr(struct btrfs_root *root, struct btrfs_path *path,
int level, int slot)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct extent_buffer *parent = path->nodes[level];
u32 nritems;
int ret;
@@ -4871,7 +4895,7 @@ static void del_ptr(struct btrfs_root *root, struct btrfs_path *path,
nritems = btrfs_header_nritems(parent);
if (slot != nritems - 1) {
if (level)
- tree_mod_log_eb_move(root->fs_info, parent, slot,
+ tree_mod_log_eb_move(fs_info, parent, slot,
slot + 1, nritems - slot - 1);
memmove_extent_buffer(parent,
btrfs_node_key_ptr_offset(slot),
@@ -4879,7 +4903,7 @@ static void del_ptr(struct btrfs_root *root, struct btrfs_path *path,
sizeof(struct btrfs_key_ptr) *
(nritems - slot - 1));
} else if (level) {
- ret = tree_mod_log_insert_key(root->fs_info, parent, slot,
+ ret = tree_mod_log_insert_key(fs_info, parent, slot,
MOD_LOG_KEY_REMOVE, GFP_NOFS);
BUG_ON(ret < 0);
}
@@ -4894,7 +4918,7 @@ static void del_ptr(struct btrfs_root *root, struct btrfs_path *path,
struct btrfs_disk_key disk_key;
btrfs_node_key(parent, &disk_key, 0);
- fixup_low_keys(root->fs_info, path, &disk_key, level + 1);
+ fixup_low_keys(fs_info, path, &disk_key, level + 1);
}
btrfs_mark_buffer_dirty(parent);
}
@@ -4936,6 +4960,7 @@ static noinline void btrfs_del_leaf(struct btrfs_trans_handle *trans,
int btrfs_del_items(struct btrfs_trans_handle *trans, struct btrfs_root *root,
struct btrfs_path *path, int slot, int nr)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct extent_buffer *leaf;
struct btrfs_item *item;
u32 last_off;
@@ -4987,7 +5012,7 @@ int btrfs_del_items(struct btrfs_trans_handle *trans, struct btrfs_root *root,
btrfs_set_header_level(leaf, 0);
} else {
btrfs_set_path_blocking(path);
- clean_tree_block(trans, root->fs_info, leaf);
+ clean_tree_block(trans, fs_info, leaf);
btrfs_del_leaf(trans, root, path, leaf);
}
} else {
@@ -4996,11 +5021,11 @@ int btrfs_del_items(struct btrfs_trans_handle *trans, struct btrfs_root *root,
struct btrfs_disk_key disk_key;
btrfs_item_key(leaf, &disk_key, 0);
- fixup_low_keys(root->fs_info, path, &disk_key, 1);
+ fixup_low_keys(fs_info, path, &disk_key, 1);
}
/* delete the leaf if it is mostly empty */
- if (used < BTRFS_LEAF_DATA_SIZE(root->fs_info) / 3) {
+ if (used < BTRFS_LEAF_DATA_SIZE(fs_info) / 3) {
/* push_leaf_left fixes the path.
* make sure the path still points to our leaf
* for possible call to del_ptr below
@@ -5337,6 +5362,7 @@ int btrfs_compare_trees(struct btrfs_root *left_root,
struct btrfs_root *right_root,
btrfs_changed_cb_t changed_cb, void *ctx)
{
+ struct btrfs_fs_info *fs_info = left_root->fs_info;
int ret;
int cmp;
struct btrfs_path *left_path = NULL;
@@ -5368,10 +5394,9 @@ int btrfs_compare_trees(struct btrfs_root *left_root,
goto out;
}
- tmp_buf = kmalloc(left_root->fs_info->nodesize,
- GFP_KERNEL | __GFP_NOWARN);
+ tmp_buf = kmalloc(fs_info->nodesize, GFP_KERNEL | __GFP_NOWARN);
if (!tmp_buf) {
- tmp_buf = vmalloc(left_root->fs_info->nodesize);
+ tmp_buf = vmalloc(fs_info->nodesize);
if (!tmp_buf) {
ret = -ENOMEM;
goto out;
@@ -5419,7 +5444,7 @@ int btrfs_compare_trees(struct btrfs_root *left_root,
* the right if possible or go up and right.
*/
- down_read(&left_root->fs_info->commit_root_sem);
+ down_read(&fs_info->commit_root_sem);
left_level = btrfs_header_level(left_root->commit_root);
left_root_level = left_level;
left_path->nodes[left_level] = left_root->commit_root;
@@ -5429,7 +5454,7 @@ int btrfs_compare_trees(struct btrfs_root *left_root,
right_root_level = right_level;
right_path->nodes[right_level] = right_root->commit_root;
extent_buffer_get(right_path->nodes[right_level]);
- up_read(&left_root->fs_info->commit_root_sem);
+ up_read(&fs_info->commit_root_sem);
if (left_level == 0)
btrfs_item_key_to_cpu(left_path->nodes[left_level],
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 19b6bb2..8601030 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -1352,9 +1352,11 @@ static inline int
btrfs_should_fragment_free_space(struct btrfs_root *root,
struct btrfs_block_group_cache *block_group)
{
- return (btrfs_test_opt(root->fs_info, FRAGMENT_METADATA) &&
+ struct btrfs_fs_info *fs_info = root->fs_info;
+
+ return (btrfs_test_opt(fs_info, FRAGMENT_METADATA) &&
block_group->flags & BTRFS_BLOCK_GROUP_METADATA) ||
- (btrfs_test_opt(root->fs_info, FRAGMENT_DATA) &&
+ (btrfs_test_opt(fs_info, FRAGMENT_DATA) &&
block_group->flags & BTRFS_BLOCK_GROUP_DATA);
}
#endif
@@ -2312,10 +2314,11 @@ static inline unsigned long btrfs_leaf_data(struct extent_buffer *l)
static inline unsigned int leaf_data_end(struct btrfs_root *root,
struct extent_buffer *leaf)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
u32 nr = btrfs_header_nritems(leaf);
if (nr == 0)
- return BTRFS_LEAF_DATA_SIZE(root->fs_info);
+ return BTRFS_LEAF_DATA_SIZE(fs_info);
return btrfs_item_offset_nr(leaf, nr - 1);
}
@@ -2905,8 +2908,9 @@ static inline int btrfs_fs_closing(struct btrfs_fs_info *fs_info)
*/
static inline int btrfs_need_cleaner_sleep(struct btrfs_root *root)
{
- return (root->fs_info->sb->s_flags & MS_RDONLY ||
- btrfs_fs_closing(root->fs_info));
+ struct btrfs_fs_info *fs_info = root->fs_info;
+
+ return (fs_info->sb->s_flags & MS_RDONLY || btrfs_fs_closing(fs_info));
}
static inline void free_fs_info(struct btrfs_fs_info *fs_info)
diff --git a/fs/btrfs/delayed-inode.c b/fs/btrfs/delayed-inode.c
index d4e0781..d7d5eb9 100644
--- a/fs/btrfs/delayed-inode.c
+++ b/fs/btrfs/delayed-inode.c
@@ -538,6 +538,7 @@ static int btrfs_delayed_item_reserve_metadata(struct btrfs_trans_handle *trans,
struct btrfs_root *root,
struct btrfs_delayed_item *item)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_block_rsv *src_rsv;
struct btrfs_block_rsv *dst_rsv;
u64 num_bytes;
@@ -547,12 +548,12 @@ static int btrfs_delayed_item_reserve_metadata(struct btrfs_trans_handle *trans,
return 0;
src_rsv = trans->block_rsv;
- dst_rsv = &root->fs_info->delayed_block_rsv;
+ dst_rsv = &fs_info->delayed_block_rsv;
- num_bytes = btrfs_calc_trans_metadata_size(root->fs_info, 1);
+ num_bytes = btrfs_calc_trans_metadata_size(fs_info, 1);
ret = btrfs_block_rsv_migrate(src_rsv, dst_rsv, num_bytes, 1);
if (!ret) {
- trace_btrfs_space_reservation(root->fs_info, "delayed_item",
+ trace_btrfs_space_reservation(fs_info, "delayed_item",
item->key.objectid,
num_bytes, 1);
item->bytes_reserved = num_bytes;
@@ -564,13 +565,14 @@ static int btrfs_delayed_item_reserve_metadata(struct btrfs_trans_handle *trans,
static void btrfs_delayed_item_release_metadata(struct btrfs_root *root,
struct btrfs_delayed_item *item)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_block_rsv *rsv;
if (!item->bytes_reserved)
return;
- rsv = &root->fs_info->delayed_block_rsv;
- trace_btrfs_space_reservation(root->fs_info, "delayed_item",
+ rsv = &fs_info->delayed_block_rsv;
+ trace_btrfs_space_reservation(fs_info, "delayed_item",
item->key.objectid, item->bytes_reserved,
0);
btrfs_block_rsv_release(root, rsv,
@@ -583,6 +585,7 @@ static int btrfs_delayed_inode_reserve_metadata(
struct inode *inode,
struct btrfs_delayed_node *node)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_block_rsv *src_rsv;
struct btrfs_block_rsv *dst_rsv;
u64 num_bytes;
@@ -590,9 +593,9 @@ static int btrfs_delayed_inode_reserve_metadata(
bool release = false;
src_rsv = trans->block_rsv;
- dst_rsv = &root->fs_info->delayed_block_rsv;
+ dst_rsv = &fs_info->delayed_block_rsv;
- num_bytes = btrfs_calc_trans_metadata_size(root->fs_info, 1);
+ num_bytes = btrfs_calc_trans_metadata_size(fs_info, 1);
/*
* If our block_rsv is the delalloc block reserve then check and see if
@@ -640,7 +643,7 @@ static int btrfs_delayed_inode_reserve_metadata(
ret = -ENOSPC;
if (!ret) {
node->bytes_reserved = num_bytes;
- trace_btrfs_space_reservation(root->fs_info,
+ trace_btrfs_space_reservation(fs_info,
"delayed_inode",
btrfs_ino(inode),
num_bytes, 1);
@@ -664,13 +667,13 @@ static int btrfs_delayed_inode_reserve_metadata(
* how block rsvs. work.
*/
if (!ret) {
- trace_btrfs_space_reservation(root->fs_info, "delayed_inode",
+ trace_btrfs_space_reservation(fs_info, "delayed_inode",
btrfs_ino(inode), num_bytes, 1);
node->bytes_reserved = num_bytes;
}
if (release) {
- trace_btrfs_space_reservation(root->fs_info, "delalloc",
+ trace_btrfs_space_reservation(fs_info, "delalloc",
btrfs_ino(inode), num_bytes, 0);
btrfs_block_rsv_release(root, src_rsv, num_bytes);
}
@@ -681,13 +684,14 @@ static int btrfs_delayed_inode_reserve_metadata(
static void btrfs_delayed_inode_release_metadata(struct btrfs_root *root,
struct btrfs_delayed_node *node)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_block_rsv *rsv;
if (!node->bytes_reserved)
return;
- rsv = &root->fs_info->delayed_block_rsv;
- trace_btrfs_space_reservation(root->fs_info, "delayed_inode",
+ rsv = &fs_info->delayed_block_rsv;
+ trace_btrfs_space_reservation(fs_info, "delayed_inode",
node->inode_id, node->bytes_reserved, 0);
btrfs_block_rsv_release(root, rsv,
node->bytes_reserved);
@@ -1140,6 +1144,7 @@ __btrfs_commit_inode_delayed_items(struct btrfs_trans_handle *trans,
static int __btrfs_run_delayed_items(struct btrfs_trans_handle *trans,
struct btrfs_root *root, int nr)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_delayed_root *delayed_root;
struct btrfs_delayed_node *curr_node, *prev_node;
struct btrfs_path *path;
@@ -1156,7 +1161,7 @@ static int __btrfs_run_delayed_items(struct btrfs_trans_handle *trans,
path->leave_spinning = 1;
block_rsv = trans->block_rsv;
- trans->block_rsv = &root->fs_info->delayed_block_rsv;
+ trans->block_rsv = &fs_info->delayed_block_rsv;
delayed_root = btrfs_get_delayed_root(root);
@@ -1860,6 +1865,7 @@ int btrfs_delayed_update_inode(struct btrfs_trans_handle *trans,
int btrfs_delayed_delete_inode_ref(struct inode *inode)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_delayed_node *delayed_node;
/*
@@ -1867,8 +1873,7 @@ int btrfs_delayed_delete_inode_ref(struct inode *inode)
* leads to enospc problems. This means we also can't do
* delayed inode refs
*/
- if (test_bit(BTRFS_FS_LOG_RECOVERING,
- &BTRFS_I(inode)->root->fs_info->flags))
+ if (test_bit(BTRFS_FS_LOG_RECOVERING, &fs_info->flags))
return -EAGAIN;
delayed_node = btrfs_get_or_create_delayed_node(inode);
@@ -1895,7 +1900,7 @@ int btrfs_delayed_delete_inode_ref(struct inode *inode)
set_bit(BTRFS_DELAYED_NODE_DEL_IREF, &delayed_node->flags);
delayed_node->count++;
- atomic_inc(&BTRFS_I(inode)->root->fs_info->delayed_root->items);
+ atomic_inc(&fs_info->delayed_root->items);
release_node:
mutex_unlock(&delayed_node->mutex);
btrfs_release_delayed_node(delayed_node);
diff --git a/fs/btrfs/dev-replace.c b/fs/btrfs/dev-replace.c
index 05169ef..c6558ed 100644
--- a/fs/btrfs/dev-replace.c
+++ b/fs/btrfs/dev-replace.c
@@ -142,7 +142,7 @@ int btrfs_init_dev_replace(struct btrfs_fs_info *fs_info)
* missing
*/
if (!dev_replace->srcdev &&
- !btrfs_test_opt(dev_root->fs_info, DEGRADED)) {
+ !btrfs_test_opt(fs_info, DEGRADED)) {
ret = -EIO;
btrfs_warn(fs_info,
"cannot mount because device replace operation is ongoing and");
@@ -151,7 +151,7 @@ int btrfs_init_dev_replace(struct btrfs_fs_info *fs_info)
src_devid);
}
if (!dev_replace->tgtdev &&
- !btrfs_test_opt(dev_root->fs_info, DEGRADED)) {
+ !btrfs_test_opt(fs_info, DEGRADED)) {
ret = -EIO;
btrfs_warn(fs_info,
"cannot mount because device replace operation is ongoing and");
@@ -387,7 +387,7 @@ int btrfs_dev_replace_start(struct btrfs_root *root, char *tgtdev_name,
if (ret)
btrfs_err(fs_info, "kobj add dev failed %d", ret);
- btrfs_wait_ordered_roots(root->fs_info, -1, 0, (u64)-1);
+ btrfs_wait_ordered_roots(fs_info, -1, 0, (u64)-1);
/* force writing the updated state information to disk */
trans = btrfs_start_transaction(root, 0);
@@ -501,12 +501,12 @@ static int btrfs_dev_replace_finishing(struct btrfs_fs_info *fs_info,
* flush all outstanding I/O and inode extent mappings before the
* copy operation is declared as being finished
*/
- ret = btrfs_start_delalloc_roots(root->fs_info, 0, -1);
+ ret = btrfs_start_delalloc_roots(fs_info, 0, -1);
if (ret) {
mutex_unlock(&dev_replace->lock_finishing_cancel_unmount);
return ret;
}
- btrfs_wait_ordered_roots(root->fs_info, -1, 0, (u64)-1);
+ btrfs_wait_ordered_roots(fs_info, -1, 0, (u64)-1);
trans = btrfs_start_transaction(root, 0);
if (IS_ERR(trans)) {
@@ -518,8 +518,8 @@ static int btrfs_dev_replace_finishing(struct btrfs_fs_info *fs_info,
mutex_lock(&uuid_mutex);
/* keep away write_all_supers() during the finishing procedure */
- mutex_lock(&root->fs_info->fs_devices->device_list_mutex);
- mutex_lock(&root->fs_info->chunk_mutex);
+ mutex_lock(&fs_info->fs_devices->device_list_mutex);
+ mutex_lock(&fs_info->chunk_mutex);
btrfs_dev_replace_lock(dev_replace, 1);
dev_replace->replace_state =
scrub_ret ? BTRFS_IOCTL_DEV_REPLACE_STATE_CANCELED
@@ -535,15 +535,15 @@ static int btrfs_dev_replace_finishing(struct btrfs_fs_info *fs_info,
src_device,
tgt_device);
} else {
- btrfs_err_in_rcu(root->fs_info,
- "btrfs_scrub_dev(%s, %llu, %s) failed %d",
- src_device->missing ? "<missing disk>" :
- rcu_str_deref(src_device->name),
- src_device->devid,
- rcu_str_deref(tgt_device->name), scrub_ret);
+ btrfs_err_in_rcu(fs_info,
+ "btrfs_scrub_dev(%s, %llu, %s) failed %d",
+ src_device->missing ? "<missing disk>" :
+ rcu_str_deref(src_device->name),
+ src_device->devid,
+ rcu_str_deref(tgt_device->name), scrub_ret);
btrfs_dev_replace_unlock(dev_replace, 1);
- mutex_unlock(&root->fs_info->chunk_mutex);
- mutex_unlock(&root->fs_info->fs_devices->device_list_mutex);
+ mutex_unlock(&fs_info->chunk_mutex);
+ mutex_unlock(&fs_info->fs_devices->device_list_mutex);
mutex_unlock(&uuid_mutex);
if (tgt_device)
btrfs_destroy_dev_replace_tgtdev(fs_info, tgt_device);
@@ -552,12 +552,12 @@ static int btrfs_dev_replace_finishing(struct btrfs_fs_info *fs_info,
return scrub_ret;
}
- btrfs_info_in_rcu(root->fs_info,
- "dev_replace from %s (devid %llu) to %s finished",
- src_device->missing ? "<missing disk>" :
- rcu_str_deref(src_device->name),
- src_device->devid,
- rcu_str_deref(tgt_device->name));
+ btrfs_info_in_rcu(fs_info,
+ "dev_replace from %s (devid %llu) to %s finished",
+ src_device->missing ? "<missing disk>" :
+ rcu_str_deref(src_device->name),
+ src_device->devid,
+ rcu_str_deref(tgt_device->name));
tgt_device->is_tgtdev_for_dev_replace = 0;
tgt_device->devid = src_device->devid;
src_device->devid = BTRFS_DEV_REPLACE_DEVID;
@@ -592,8 +592,8 @@ static int btrfs_dev_replace_finishing(struct btrfs_fs_info *fs_info,
* superblock is scratched out so that it is no longer marked to
* belong to this filesystem.
*/
- mutex_unlock(&root->fs_info->chunk_mutex);
- mutex_unlock(&root->fs_info->fs_devices->device_list_mutex);
+ mutex_unlock(&fs_info->chunk_mutex);
+ mutex_unlock(&fs_info->fs_devices->device_list_mutex);
mutex_unlock(&uuid_mutex);
/* replace the sysfs entry */
diff --git a/fs/btrfs/dir-item.c b/fs/btrfs/dir-item.c
index 79233ab69..128f8ab 100644
--- a/fs/btrfs/dir-item.c
+++ b/fs/btrfs/dir-item.c
@@ -451,12 +451,12 @@ int verify_dir_item(struct btrfs_root *root,
struct extent_buffer *leaf,
struct btrfs_dir_item *dir_item)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
u16 namelen = BTRFS_NAME_LEN;
u8 type = btrfs_dir_type(leaf, dir_item);
if (type >= BTRFS_FT_MAX) {
- btrfs_crit(root->fs_info, "invalid dir item type: %d",
- (int)type);
+ btrfs_crit(fs_info, "invalid dir item type: %d", (int)type);
return 1;
}
@@ -464,16 +464,16 @@ int verify_dir_item(struct btrfs_root *root,
namelen = XATTR_NAME_MAX;
if (btrfs_dir_name_len(leaf, dir_item) > namelen) {
- btrfs_crit(root->fs_info, "invalid dir item name len: %u",
+ btrfs_crit(fs_info, "invalid dir item name len: %u",
(unsigned)btrfs_dir_data_len(leaf, dir_item));
return 1;
}
/* BTRFS_MAX_XATTR_SIZE is the same for all dir items */
if ((btrfs_dir_data_len(leaf, dir_item) +
- btrfs_dir_name_len(leaf, dir_item)) > BTRFS_MAX_XATTR_SIZE(root->fs_info)) {
- btrfs_crit(root->fs_info,
- "invalid dir item name + data len: %u + %u",
+ btrfs_dir_name_len(leaf, dir_item)) >
+ BTRFS_MAX_XATTR_SIZE(fs_info)) {
+ btrfs_crit(fs_info, "invalid dir item name + data len: %u + %u",
(unsigned)btrfs_dir_name_len(leaf, dir_item),
(unsigned)btrfs_dir_data_len(leaf, dir_item));
return 1;
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 5abf3af..02ba794 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -224,6 +224,7 @@ static struct extent_map *btree_get_extent(struct inode *inode,
struct page *page, size_t pg_offset, u64 start, u64 len,
int create)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct extent_map_tree *em_tree = &BTRFS_I(inode)->extent_tree;
struct extent_map *em;
int ret;
@@ -231,8 +232,7 @@ static struct extent_map *btree_get_extent(struct inode *inode,
read_lock(&em_tree->lock);
em = lookup_extent_mapping(em_tree, start, len);
if (em) {
- em->bdev =
- BTRFS_I(inode)->root->fs_info->fs_devices->latest_bdev;
+ em->bdev = fs_info->fs_devices->latest_bdev;
read_unlock(&em_tree->lock);
goto out;
}
@@ -247,7 +247,7 @@ static struct extent_map *btree_get_extent(struct inode *inode,
em->len = (u64)-1;
em->block_len = (u64)-1;
em->block_start = 0;
- em->bdev = BTRFS_I(inode)->root->fs_info->fs_devices->latest_bdev;
+ em->bdev = fs_info->fs_devices->latest_bdev;
write_lock(&em_tree->lock);
ret = add_extent_mapping(em_tree, em, 0);
@@ -444,6 +444,7 @@ static int btree_read_extent_buffer_pages(struct btrfs_root *root,
struct extent_buffer *eb,
u64 parent_transid)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct extent_io_tree *io_tree;
int failed = 0;
int ret;
@@ -452,7 +453,7 @@ static int btree_read_extent_buffer_pages(struct btrfs_root *root,
int failed_mirror = 0;
clear_bit(EXTENT_BUFFER_CORRUPT, &eb->bflags);
- io_tree = &BTRFS_I(root->fs_info->btree_inode)->io_tree;
+ io_tree = &BTRFS_I(fs_info->btree_inode)->io_tree;
while (1) {
ret = read_extent_buffer_pages(io_tree, eb, WAIT_COMPLETE,
btree_get_extent, mirror_num);
@@ -472,7 +473,7 @@ static int btree_read_extent_buffer_pages(struct btrfs_root *root,
if (test_bit(EXTENT_BUFFER_CORRUPT, &eb->bflags))
break;
- num_copies = btrfs_num_copies(root->fs_info,
+ num_copies = btrfs_num_copies(fs_info,
eb->start, eb->len);
if (num_copies == 1)
break;
@@ -545,15 +546,16 @@ static int check_tree_block_fsid(struct btrfs_fs_info *fs_info,
return ret;
}
-#define CORRUPT(reason, eb, root, slot) \
- btrfs_crit(root->fs_info, "corrupt %s, %s: block=%llu," \
- " root=%llu, slot=%d", \
- btrfs_header_level(eb) == 0 ? "leaf" : "node",\
+#define CORRUPT(reason, eb, root, slot) \
+ btrfs_crit(root->fs_info, \
+ "corrupt %s, %s: block=%llu, root=%llu, slot=%d", \
+ btrfs_header_level(eb) == 0 ? "leaf" : "node", \
reason, btrfs_header_bytenr(eb), root->objectid, slot)
static noinline int check_leaf(struct btrfs_root *root,
struct extent_buffer *leaf)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_key key;
struct btrfs_key leaf_key;
u32 nritems = btrfs_header_nritems(leaf);
@@ -566,7 +568,7 @@ static noinline int check_leaf(struct btrfs_root *root,
key.type = BTRFS_ROOT_ITEM_KEY;
key.offset = (u64)-1;
- check_root = btrfs_get_fs_root(root->fs_info, &key, false);
+ check_root = btrfs_get_fs_root(fs_info, &key, false);
/*
* The only reason we also check NULL here is that during
* open_ctree() some roots has not yet been set up.
@@ -585,7 +587,7 @@ static noinline int check_leaf(struct btrfs_root *root,
/* Check the 0 item */
if (btrfs_item_offset_nr(leaf, 0) + btrfs_item_size_nr(leaf, 0) !=
- BTRFS_LEAF_DATA_SIZE(root->fs_info)) {
+ BTRFS_LEAF_DATA_SIZE(fs_info)) {
CORRUPT("invalid item offset size pair", leaf, root, 0);
return -EIO;
}
@@ -624,7 +626,7 @@ static noinline int check_leaf(struct btrfs_root *root,
* all point outside of the leaf.
*/
if (btrfs_item_end_nr(leaf, slot) >
- BTRFS_LEAF_DATA_SIZE(root->fs_info)) {
+ BTRFS_LEAF_DATA_SIZE(fs_info)) {
CORRUPT("slot end outside of leaf", leaf, root, slot);
return -EIO;
}
@@ -1004,6 +1006,7 @@ static int btree_submit_bio_hook(struct inode *inode, struct bio *bio,
int mirror_num, unsigned long bio_flags,
u64 bio_offset)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
int async = check_async_write(inode, bio_flags);
int ret;
@@ -1012,8 +1015,8 @@ static int btree_submit_bio_hook(struct inode *inode, struct bio *bio,
* called for a read, do the setup so that checksum validation
* can happen in the async kernel threads
*/
- ret = btrfs_bio_wq_end_io(BTRFS_I(inode)->root->fs_info,
- bio, BTRFS_WQ_ENDIO_METADATA);
+ ret = btrfs_bio_wq_end_io(fs_info, bio,
+ BTRFS_WQ_ENDIO_METADATA);
if (ret)
goto out_w_error;
ret = btrfs_map_bio(BTRFS_I(inode)->root, bio, mirror_num, 0);
@@ -1027,8 +1030,7 @@ static int btree_submit_bio_hook(struct inode *inode, struct bio *bio,
* kthread helpers are used to submit writes so that
* checksumming can happen in parallel across all CPUs
*/
- ret = btrfs_wq_submit_bio(BTRFS_I(inode)->root->fs_info,
- inode, bio, mirror_num, 0,
+ ret = btrfs_wq_submit_bio(fs_info, inode, bio, mirror_num, 0,
bio_offset,
__btree_submit_bio_start,
__btree_submit_bio_done);
@@ -1194,9 +1196,11 @@ int reada_tree_block_flagged(struct btrfs_root *root, u64 bytenr,
struct extent_buffer *btrfs_find_create_tree_block(struct btrfs_root *root,
u64 bytenr)
{
- if (btrfs_is_testing(root->fs_info))
- return alloc_test_extent_buffer(root->fs_info, bytenr);
- return alloc_extent_buffer(root->fs_info, bytenr);
+ struct btrfs_fs_info *fs_info = root->fs_info;
+
+ if (btrfs_is_testing(fs_info))
+ return alloc_test_extent_buffer(fs_info, bytenr);
+ return alloc_extent_buffer(fs_info, bytenr);
}
@@ -1493,7 +1497,7 @@ static struct btrfs_root *alloc_log_tree(struct btrfs_trans_handle *trans,
btrfs_set_header_owner(leaf, BTRFS_TREE_LOG_OBJECTID);
root->node = leaf;
- write_extent_buffer_fsid(root->node, root->fs_info->fsid);
+ write_extent_buffer_fsid(root->node, fs_info->fsid);
btrfs_mark_buffer_dirty(root->node);
btrfs_tree_unlock(root->node);
return root;
@@ -1515,10 +1519,11 @@ int btrfs_init_log_root_tree(struct btrfs_trans_handle *trans,
int btrfs_add_log_tree(struct btrfs_trans_handle *trans,
struct btrfs_root *root)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_root *log_root;
struct btrfs_inode_item *inode_item;
- log_root = alloc_log_tree(trans, root->fs_info);
+ log_root = alloc_log_tree(trans, fs_info);
if (IS_ERR(log_root))
return PTR_ERR(log_root);
@@ -1530,7 +1535,7 @@ int btrfs_add_log_tree(struct btrfs_trans_handle *trans,
btrfs_set_stack_inode_size(inode_item, 3);
btrfs_set_stack_inode_nlink(inode_item, 1);
btrfs_set_stack_inode_nbytes(inode_item,
- root->fs_info->nodesize);
+ fs_info->nodesize);
btrfs_set_stack_inode_mode(inode_item, S_IFDIR | 0755);
btrfs_set_root_node(&log_root->root_item, log_root->node);
@@ -1828,6 +1833,7 @@ static void end_workqueue_fn(struct btrfs_work *work)
static int cleaner_kthread(void *arg)
{
struct btrfs_root *root = arg;
+ struct btrfs_fs_info *fs_info = root->fs_info;
int again;
struct btrfs_trans_handle *trans;
@@ -1842,10 +1848,10 @@ static int cleaner_kthread(void *arg)
* Do not do anything if we might cause open_ctree() to block
* before we have finished mounting the filesystem.
*/
- if (!test_bit(BTRFS_FS_OPEN, &root->fs_info->flags))
+ if (!test_bit(BTRFS_FS_OPEN, &fs_info->flags))
goto sleep;
- if (!mutex_trylock(&root->fs_info->cleaner_mutex))
+ if (!mutex_trylock(&fs_info->cleaner_mutex))
goto sleep;
/*
@@ -1853,22 +1859,22 @@ static int cleaner_kthread(void *arg)
* during the above check and trylock.
*/
if (btrfs_need_cleaner_sleep(root)) {
- mutex_unlock(&root->fs_info->cleaner_mutex);
+ mutex_unlock(&fs_info->cleaner_mutex);
goto sleep;
}
- mutex_lock(&root->fs_info->cleaner_delayed_iput_mutex);
+ mutex_lock(&fs_info->cleaner_delayed_iput_mutex);
btrfs_run_delayed_iputs(root);
- mutex_unlock(&root->fs_info->cleaner_delayed_iput_mutex);
+ mutex_unlock(&fs_info->cleaner_delayed_iput_mutex);
again = btrfs_clean_one_deleted_snapshot(root);
- mutex_unlock(&root->fs_info->cleaner_mutex);
+ mutex_unlock(&fs_info->cleaner_mutex);
/*
* The defragger has dealt with the R/O remount and umount,
* needn't do anything special here.
*/
- btrfs_run_defrag_inodes(root->fs_info);
+ btrfs_run_defrag_inodes(fs_info);
/*
* Acquires fs_info->delete_unused_bgs_mutex to avoid racing
@@ -1878,7 +1884,7 @@ static int cleaner_kthread(void *arg)
* can't hold, nor need to, fs_info->cleaner_mutex when deleting
* unused block groups.
*/
- btrfs_delete_unused_bgs(root->fs_info);
+ btrfs_delete_unused_bgs(fs_info);
sleep:
if (!again) {
set_current_state(TASK_INTERRUPTIBLE);
@@ -1902,7 +1908,7 @@ static int cleaner_kthread(void *arg)
trans = btrfs_attach_transaction(root);
if (IS_ERR(trans)) {
if (PTR_ERR(trans) != -ENOENT)
- btrfs_err(root->fs_info,
+ btrfs_err(fs_info,
"cleaner transaction attach returned %ld",
PTR_ERR(trans));
} else {
@@ -1910,7 +1916,7 @@ static int cleaner_kthread(void *arg)
ret = btrfs_commit_transaction(trans, root);
if (ret)
- btrfs_err(root->fs_info,
+ btrfs_err(fs_info,
"cleaner open transaction commit returned %d",
ret);
}
@@ -1921,6 +1927,7 @@ static int cleaner_kthread(void *arg)
static int transaction_kthread(void *arg)
{
struct btrfs_root *root = arg;
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_trans_handle *trans;
struct btrfs_transaction *cur;
u64 transid;
@@ -1930,26 +1937,26 @@ static int transaction_kthread(void *arg)
do {
cannot_commit = false;
- delay = HZ * root->fs_info->commit_interval;
- mutex_lock(&root->fs_info->transaction_kthread_mutex);
+ delay = HZ * fs_info->commit_interval;
+ mutex_lock(&fs_info->transaction_kthread_mutex);
- spin_lock(&root->fs_info->trans_lock);
- cur = root->fs_info->running_transaction;
+ spin_lock(&fs_info->trans_lock);
+ cur = fs_info->running_transaction;
if (!cur) {
- spin_unlock(&root->fs_info->trans_lock);
+ spin_unlock(&fs_info->trans_lock);
goto sleep;
}
now = get_seconds();
if (cur->state < TRANS_STATE_BLOCKED &&
(now < cur->start_time ||
- now - cur->start_time < root->fs_info->commit_interval)) {
- spin_unlock(&root->fs_info->trans_lock);
+ now - cur->start_time < fs_info->commit_interval)) {
+ spin_unlock(&fs_info->trans_lock);
delay = HZ * 5;
goto sleep;
}
transid = cur->transid;
- spin_unlock(&root->fs_info->trans_lock);
+ spin_unlock(&fs_info->trans_lock);
/* If the file system is aborted, this will always fail. */
trans = btrfs_attach_transaction(root);
@@ -1964,15 +1971,15 @@ static int transaction_kthread(void *arg)
btrfs_end_transaction(trans, root);
}
sleep:
- wake_up_process(root->fs_info->cleaner_kthread);
- mutex_unlock(&root->fs_info->transaction_kthread_mutex);
+ wake_up_process(fs_info->cleaner_kthread);
+ mutex_unlock(&fs_info->transaction_kthread_mutex);
if (unlikely(test_bit(BTRFS_FS_STATE_ERROR,
- &root->fs_info->fs_state)))
+ &fs_info->fs_state)))
btrfs_cleanup_transaction(root);
set_current_state(TASK_INTERRUPTIBLE);
if (!kthread_should_stop() &&
- (!btrfs_transaction_blocked(root->fs_info) ||
+ (!btrfs_transaction_blocked(fs_info) ||
cannot_commit))
schedule_timeout(delay);
__set_current_state(TASK_RUNNING);
@@ -2464,8 +2471,8 @@ static int btrfs_replay_log(struct btrfs_fs_info *fs_info,
/* returns with log_tree_root freed on success */
ret = btrfs_recover_log_trees(log_tree_root);
if (ret) {
- btrfs_handle_fs_error(tree_root->fs_info, ret,
- "Failed to recover log tree");
+ btrfs_handle_fs_error(fs_info, ret,
+ "Failed to recover log tree");
free_extent_buffer(log_tree_root->node);
kfree(log_tree_root);
return ret;
@@ -2830,7 +2837,7 @@ int open_ctree(struct super_block *sb,
features = btrfs_super_incompat_flags(disk_super);
features |= BTRFS_FEATURE_INCOMPAT_MIXED_BACKREF;
- if (tree_root->fs_info->compress_type == BTRFS_COMPRESS_LZO)
+ if (fs_info->compress_type == BTRFS_COMPRESS_LZO)
features |= BTRFS_FEATURE_INCOMPAT_COMPRESS_LZO;
if (features & BTRFS_FEATURE_INCOMPAT_SKINNY_METADATA)
@@ -3059,8 +3066,8 @@ int open_ctree(struct super_block *sb,
if (IS_ERR(fs_info->transaction_kthread))
goto fail_cleaner;
- if (!btrfs_test_opt(tree_root->fs_info, SSD) &&
- !btrfs_test_opt(tree_root->fs_info, NOSSD) &&
+ if (!btrfs_test_opt(fs_info, SSD) &&
+ !btrfs_test_opt(fs_info, NOSSD) &&
!fs_info->fs_devices->rotating) {
btrfs_info(fs_info, "detected SSD devices, enabling SSD mode");
btrfs_set_opt(fs_info->mount_opt, SSD);
@@ -3073,9 +3080,9 @@ int open_ctree(struct super_block *sb,
btrfs_apply_pending_changes(fs_info);
#ifdef CONFIG_BTRFS_FS_CHECK_INTEGRITY
- if (btrfs_test_opt(tree_root->fs_info, CHECK_INTEGRITY)) {
+ if (btrfs_test_opt(fs_info, CHECK_INTEGRITY)) {
ret = btrfsic_mount(tree_root, fs_devices,
- btrfs_test_opt(tree_root->fs_info,
+ btrfs_test_opt(fs_info,
CHECK_INTEGRITY_INCLUDING_EXTENT_DATA) ?
1 : 0,
fs_info->check_integrity_print_mask);
@@ -3091,7 +3098,7 @@ int open_ctree(struct super_block *sb,
/* do not make disk changes in broken FS or nologreplay is given */
if (btrfs_super_log_root(disk_super) != 0 &&
- !btrfs_test_opt(tree_root->fs_info, NOLOGREPLAY)) {
+ !btrfs_test_opt(fs_info, NOLOGREPLAY)) {
ret = btrfs_replay_log(fs_info, fs_devices);
if (ret) {
err = ret;
@@ -3152,7 +3159,7 @@ int open_ctree(struct super_block *sb,
}
}
- if (btrfs_test_opt(tree_root->fs_info, FREE_SPACE_TREE) &&
+ if (btrfs_test_opt(fs_info, FREE_SPACE_TREE) &&
!btrfs_fs_compat_ro(fs_info, FREE_SPACE_TREE)) {
btrfs_info(fs_info, "creating free space tree");
ret = btrfs_create_free_space_tree(fs_info);
@@ -3198,7 +3205,7 @@ int open_ctree(struct super_block *sb,
close_ctree(fs_info);
return ret;
}
- } else if (btrfs_test_opt(tree_root->fs_info, RESCAN_UUID_TREE) ||
+ } else if (btrfs_test_opt(fs_info, RESCAN_UUID_TREE) ||
fs_info->generation !=
btrfs_super_uuid_tree_generation(disk_super)) {
btrfs_info(fs_info, "checking UUID tree");
@@ -3274,7 +3281,7 @@ int open_ctree(struct super_block *sb,
return err;
recovery_tree_root:
- if (!btrfs_test_opt(tree_root->fs_info, USEBACKUPROOT))
+ if (!btrfs_test_opt(fs_info, USEBACKUPROOT))
goto fail_tree_roots;
free_root_pointers(fs_info, 0);
@@ -3680,6 +3687,7 @@ int btrfs_calc_num_tolerated_disk_barrier_failures(
static int write_all_supers(struct btrfs_root *root, int max_mirrors)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct list_head *head;
struct btrfs_device *dev;
struct btrfs_super_block *sb;
@@ -3690,23 +3698,23 @@ static int write_all_supers(struct btrfs_root *root, int max_mirrors)
int total_errors = 0;
u64 flags;
- do_barriers = !btrfs_test_opt(root->fs_info, NOBARRIER);
- backup_super_roots(root->fs_info);
+ do_barriers = !btrfs_test_opt(fs_info, NOBARRIER);
+ backup_super_roots(fs_info);
- sb = root->fs_info->super_for_commit;
+ sb = fs_info->super_for_commit;
dev_item = &sb->dev_item;
- mutex_lock(&root->fs_info->fs_devices->device_list_mutex);
- head = &root->fs_info->fs_devices->devices;
- max_errors = btrfs_super_num_devices(root->fs_info->super_copy) - 1;
+ mutex_lock(&fs_info->fs_devices->device_list_mutex);
+ head = &fs_info->fs_devices->devices;
+ max_errors = btrfs_super_num_devices(fs_info->super_copy) - 1;
if (do_barriers) {
- ret = barrier_all_devices(root->fs_info);
+ ret = barrier_all_devices(fs_info);
if (ret) {
mutex_unlock(
- &root->fs_info->fs_devices->device_list_mutex);
- btrfs_handle_fs_error(root->fs_info, ret,
- "errors while submitting device barriers.");
+ &fs_info->fs_devices->device_list_mutex);
+ btrfs_handle_fs_error(fs_info, ret,
+ "errors while submitting device barriers.");
return ret;
}
}
@@ -3740,13 +3748,14 @@ static int write_all_supers(struct btrfs_root *root, int max_mirrors)
total_errors++;
}
if (total_errors > max_errors) {
- btrfs_err(root->fs_info, "%d errors while writing supers",
- total_errors);
- mutex_unlock(&root->fs_info->fs_devices->device_list_mutex);
+ btrfs_err(fs_info, "%d errors while writing supers",
+ total_errors);
+ mutex_unlock(&fs_info->fs_devices->device_list_mutex);
/* FUA is masked off if unsupported and can't be the reason */
- btrfs_handle_fs_error(root->fs_info, -EIO,
- "%d errors while writing supers", total_errors);
+ btrfs_handle_fs_error(fs_info, -EIO,
+ "%d errors while writing supers",
+ total_errors);
return -EIO;
}
@@ -3761,10 +3770,11 @@ static int write_all_supers(struct btrfs_root *root, int max_mirrors)
if (ret)
total_errors++;
}
- mutex_unlock(&root->fs_info->fs_devices->device_list_mutex);
+ mutex_unlock(&fs_info->fs_devices->device_list_mutex);
if (total_errors > max_errors) {
- btrfs_handle_fs_error(root->fs_info, -EIO,
- "%d errors while writing supers", total_errors);
+ btrfs_handle_fs_error(fs_info, -EIO,
+ "%d errors while writing supers",
+ total_errors);
return -EIO;
}
return 0;
@@ -3884,14 +3894,14 @@ int btrfs_commit_super(struct btrfs_fs_info *fs_info)
struct btrfs_root *root = fs_info->tree_root;
struct btrfs_trans_handle *trans;
- mutex_lock(&root->fs_info->cleaner_mutex);
+ mutex_lock(&fs_info->cleaner_mutex);
btrfs_run_delayed_iputs(root);
- mutex_unlock(&root->fs_info->cleaner_mutex);
- wake_up_process(root->fs_info->cleaner_kthread);
+ mutex_unlock(&fs_info->cleaner_mutex);
+ wake_up_process(fs_info->cleaner_kthread);
/* wait until ongoing cleanup work done */
- down_write(&root->fs_info->cleanup_work_sem);
- up_write(&root->fs_info->cleanup_work_sem);
+ down_write(&fs_info->cleanup_work_sem);
+ up_write(&fs_info->cleanup_work_sem);
trans = btrfs_join_transaction(root);
if (IS_ERR(trans))
@@ -3936,7 +3946,7 @@ void close_ctree(struct btrfs_fs_info *fs_info)
* block groups queued for removal, the deletion will be
* skipped when we quit the cleaner thread.
*/
- btrfs_delete_unused_bgs(root->fs_info);
+ btrfs_delete_unused_bgs(fs_info);
ret = btrfs_commit_super(fs_info);
if (ret)
@@ -3980,7 +3990,7 @@ void close_ctree(struct btrfs_fs_info *fs_info)
iput(fs_info->btree_inode);
#ifdef CONFIG_BTRFS_FS_CHECK_INTEGRITY
- if (btrfs_test_opt(root->fs_info, CHECK_INTEGRITY))
+ if (btrfs_test_opt(fs_info, CHECK_INTEGRITY))
btrfsic_unmount(root, fs_info->fs_devices);
#endif
@@ -3998,7 +4008,7 @@ void close_ctree(struct btrfs_fs_info *fs_info)
__btrfs_free_block_rsv(root->orphan_block_rsv);
root->orphan_block_rsv = NULL;
- lock_chunks(root->fs_info);
+ lock_chunks(fs_info);
while (!list_empty(&fs_info->pinned_chunks)) {
struct extent_map *em;
@@ -4007,7 +4017,7 @@ void close_ctree(struct btrfs_fs_info *fs_info)
list_del_init(&em->list);
free_extent_map(em);
}
- unlock_chunks(root->fs_info);
+ unlock_chunks(fs_info);
}
int btrfs_buffer_uptodate(struct extent_buffer *buf, u64 parent_transid,
@@ -4029,6 +4039,7 @@ int btrfs_buffer_uptodate(struct extent_buffer *buf, u64 parent_transid,
void btrfs_mark_buffer_dirty(struct extent_buffer *buf)
{
+ struct btrfs_fs_info *fs_info;
struct btrfs_root *root;
u64 transid = btrfs_header_generation(buf);
int was_dirty;
@@ -4043,15 +4054,16 @@ void btrfs_mark_buffer_dirty(struct extent_buffer *buf)
return;
#endif
root = BTRFS_I(buf->pages[0]->mapping->host)->root;
+ fs_info = root->fs_info;
btrfs_assert_tree_locked(buf);
- if (transid != root->fs_info->generation)
+ if (transid != fs_info->generation)
WARN(1, KERN_CRIT "btrfs transid mismatch buffer %llu, found %llu running %llu\n",
- buf->start, transid, root->fs_info->generation);
+ buf->start, transid, fs_info->generation);
was_dirty = set_extent_buffer_dirty(buf);
if (!was_dirty)
- __percpu_counter_add(&root->fs_info->dirty_metadata_bytes,
+ __percpu_counter_add(&fs_info->dirty_metadata_bytes,
buf->len,
- root->fs_info->dirty_metadata_batch);
+ fs_info->dirty_metadata_batch);
#ifdef CONFIG_BTRFS_FS_CHECK_INTEGRITY
if (btrfs_header_level(buf) == 0 && check_leaf(root, buf)) {
btrfs_print_leaf(root, buf);
@@ -4063,6 +4075,7 @@ void btrfs_mark_buffer_dirty(struct extent_buffer *buf)
static void __btrfs_btree_balance_dirty(struct btrfs_root *root,
int flush_delayed)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
/*
* looks as though older kernels can get into trouble with
* this code, they end up stuck in balance_dirty_pages forever
@@ -4075,11 +4088,10 @@ static void __btrfs_btree_balance_dirty(struct btrfs_root *root,
if (flush_delayed)
btrfs_balance_delayed_items(root);
- ret = percpu_counter_compare(&root->fs_info->dirty_metadata_bytes,
+ ret = percpu_counter_compare(&fs_info->dirty_metadata_bytes,
BTRFS_DIRTY_METADATA_THRESH);
if (ret > 0) {
- balance_dirty_pages_ratelimited(
- root->fs_info->btree_inode->i_mapping);
+ balance_dirty_pages_ratelimited(fs_info->btree_inode->i_mapping);
}
}
@@ -4249,12 +4261,14 @@ static int btrfs_check_super_valid(struct btrfs_fs_info *fs_info,
static void btrfs_error_commit_super(struct btrfs_root *root)
{
- mutex_lock(&root->fs_info->cleaner_mutex);
- btrfs_run_delayed_iputs(root);
- mutex_unlock(&root->fs_info->cleaner_mutex);
+ struct btrfs_fs_info *fs_info = root->fs_info;
- down_write(&root->fs_info->cleanup_work_sem);
- up_write(&root->fs_info->cleanup_work_sem);
+ mutex_lock(&fs_info->cleaner_mutex);
+ btrfs_run_delayed_iputs(root);
+ mutex_unlock(&fs_info->cleaner_mutex);
+
+ down_write(&fs_info->cleanup_work_sem);
+ up_write(&fs_info->cleanup_work_sem);
/* cleanup FS via transaction */
btrfs_cleanup_transaction(root);
@@ -4302,6 +4316,7 @@ static void btrfs_destroy_all_ordered_extents(struct btrfs_fs_info *fs_info)
static int btrfs_destroy_delayed_refs(struct btrfs_transaction *trans,
struct btrfs_root *root)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct rb_node *node;
struct btrfs_delayed_ref_root *delayed_refs;
struct btrfs_delayed_ref_node *ref;
@@ -4312,7 +4327,7 @@ static int btrfs_destroy_delayed_refs(struct btrfs_transaction *trans,
spin_lock(&delayed_refs->lock);
if (atomic_read(&delayed_refs->num_entries) == 0) {
spin_unlock(&delayed_refs->lock);
- btrfs_info(root->fs_info, "delayed_refs has NO entry");
+ btrfs_info(fs_info, "delayed_refs has NO entry");
return ret;
}
@@ -4425,6 +4440,7 @@ static int btrfs_destroy_marked_extents(struct btrfs_root *root,
struct extent_io_tree *dirty_pages,
int mark)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
int ret;
struct extent_buffer *eb;
u64 start = 0;
@@ -4438,8 +4454,8 @@ static int btrfs_destroy_marked_extents(struct btrfs_root *root,
clear_extent_bits(dirty_pages, start, end, mark);
while (start <= end) {
- eb = find_extent_buffer(root->fs_info, start);
- start += root->fs_info->nodesize;
+ eb = find_extent_buffer(fs_info, start);
+ start += fs_info->nodesize;
if (!eb)
continue;
wait_on_extent_buffer_writeback(eb);
@@ -4457,6 +4473,7 @@ static int btrfs_destroy_marked_extents(struct btrfs_root *root,
static int btrfs_destroy_pinned_extent(struct btrfs_root *root,
struct extent_io_tree *pinned_extents)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct extent_io_tree *unpin;
u64 start;
u64 end;
@@ -4477,10 +4494,10 @@ static int btrfs_destroy_pinned_extent(struct btrfs_root *root,
}
if (loop) {
- if (unpin == &root->fs_info->freed_extents[0])
- unpin = &root->fs_info->freed_extents[1];
+ if (unpin == &fs_info->freed_extents[0])
+ unpin = &fs_info->freed_extents[1];
else
- unpin = &root->fs_info->freed_extents[0];
+ unpin = &fs_info->freed_extents[0];
loop = false;
goto again;
}
@@ -4505,6 +4522,7 @@ static void btrfs_cleanup_bg_io(struct btrfs_block_group_cache *cache)
void btrfs_cleanup_dirty_bgs(struct btrfs_transaction *cur_trans,
struct btrfs_root *root)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_block_group_cache *cache;
spin_lock(&cur_trans->dirty_bgs_lock);
@@ -4513,8 +4531,7 @@ void btrfs_cleanup_dirty_bgs(struct btrfs_transaction *cur_trans,
struct btrfs_block_group_cache,
dirty_list);
if (!cache) {
- btrfs_err(root->fs_info,
- "orphan block group dirty_bgs list");
+ btrfs_err(fs_info, "orphan block group dirty_bgs list");
spin_unlock(&cur_trans->dirty_bgs_lock);
return;
}
@@ -4542,8 +4559,7 @@ void btrfs_cleanup_dirty_bgs(struct btrfs_transaction *cur_trans,
struct btrfs_block_group_cache,
io_list);
if (!cache) {
- btrfs_err(root->fs_info,
- "orphan block group on io_bgs list");
+ btrfs_err(fs_info, "orphan block group on io_bgs list");
return;
}
@@ -4558,6 +4574,7 @@ void btrfs_cleanup_dirty_bgs(struct btrfs_transaction *cur_trans,
void btrfs_cleanup_one_transaction(struct btrfs_transaction *cur_trans,
struct btrfs_root *root)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
btrfs_cleanup_dirty_bgs(cur_trans, root);
ASSERT(list_empty(&cur_trans->dirty_bgs));
ASSERT(list_empty(&cur_trans->io_bgs));
@@ -4565,10 +4582,10 @@ void btrfs_cleanup_one_transaction(struct btrfs_transaction *cur_trans,
btrfs_destroy_delayed_refs(cur_trans, root);
cur_trans->state = TRANS_STATE_COMMIT_START;
- wake_up(&root->fs_info->transaction_blocked_wait);
+ wake_up(&fs_info->transaction_blocked_wait);
cur_trans->state = TRANS_STATE_UNBLOCKED;
- wake_up(&root->fs_info->transaction_wait);
+ wake_up(&fs_info->transaction_wait);
btrfs_destroy_delayed_inodes(root);
btrfs_assert_delayed_root_empty(root);
@@ -4576,7 +4593,7 @@ void btrfs_cleanup_one_transaction(struct btrfs_transaction *cur_trans,
btrfs_destroy_marked_extents(root, &cur_trans->dirty_pages,
EXTENT_DIRTY);
btrfs_destroy_pinned_extent(root,
- root->fs_info->pinned_extents);
+ fs_info->pinned_extents);
cur_trans->state =TRANS_STATE_COMPLETED;
wake_up(&cur_trans->commit_wait);
@@ -4589,25 +4606,26 @@ void btrfs_cleanup_one_transaction(struct btrfs_transaction *cur_trans,
static int btrfs_cleanup_transaction(struct btrfs_root *root)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_transaction *t;
- mutex_lock(&root->fs_info->transaction_kthread_mutex);
+ mutex_lock(&fs_info->transaction_kthread_mutex);
- spin_lock(&root->fs_info->trans_lock);
- while (!list_empty(&root->fs_info->trans_list)) {
- t = list_first_entry(&root->fs_info->trans_list,
+ spin_lock(&fs_info->trans_lock);
+ while (!list_empty(&fs_info->trans_list)) {
+ t = list_first_entry(&fs_info->trans_list,
struct btrfs_transaction, list);
if (t->state >= TRANS_STATE_COMMIT_START) {
atomic_inc(&t->use_count);
- spin_unlock(&root->fs_info->trans_lock);
+ spin_unlock(&fs_info->trans_lock);
btrfs_wait_for_commit(root, t->transid);
btrfs_put_transaction(t);
- spin_lock(&root->fs_info->trans_lock);
+ spin_lock(&fs_info->trans_lock);
continue;
}
- if (t == root->fs_info->running_transaction) {
+ if (t == fs_info->running_transaction) {
t->state = TRANS_STATE_COMMIT_DOING;
- spin_unlock(&root->fs_info->trans_lock);
+ spin_unlock(&fs_info->trans_lock);
/*
* We wait for 0 num_writers since we don't hold a trans
* handle open currently for this transaction.
@@ -4615,27 +4633,27 @@ static int btrfs_cleanup_transaction(struct btrfs_root *root)
wait_event(t->writer_wait,
atomic_read(&t->num_writers) == 0);
} else {
- spin_unlock(&root->fs_info->trans_lock);
+ spin_unlock(&fs_info->trans_lock);
}
btrfs_cleanup_one_transaction(t, root);
- spin_lock(&root->fs_info->trans_lock);
- if (t == root->fs_info->running_transaction)
- root->fs_info->running_transaction = NULL;
+ spin_lock(&fs_info->trans_lock);
+ if (t == fs_info->running_transaction)
+ fs_info->running_transaction = NULL;
list_del_init(&t->list);
- spin_unlock(&root->fs_info->trans_lock);
+ spin_unlock(&fs_info->trans_lock);
btrfs_put_transaction(t);
trace_btrfs_transaction_commit(root);
- spin_lock(&root->fs_info->trans_lock);
+ spin_lock(&fs_info->trans_lock);
}
- spin_unlock(&root->fs_info->trans_lock);
- btrfs_destroy_all_ordered_extents(root->fs_info);
+ spin_unlock(&fs_info->trans_lock);
+ btrfs_destroy_all_ordered_extents(fs_info);
btrfs_destroy_delayed_inodes(root);
btrfs_assert_delayed_root_empty(root);
- btrfs_destroy_pinned_extent(root, root->fs_info->pinned_extents);
- btrfs_destroy_all_delalloc_inodes(root->fs_info);
- mutex_unlock(&root->fs_info->transaction_kthread_mutex);
+ btrfs_destroy_pinned_extent(root, fs_info->pinned_extents);
+ btrfs_destroy_all_delalloc_inodes(fs_info);
+ mutex_unlock(&fs_info->transaction_kthread_mutex);
return 0;
}
diff --git a/fs/btrfs/export.c b/fs/btrfs/export.c
index 2513a7f..340d9075 100644
--- a/fs/btrfs/export.c
+++ b/fs/btrfs/export.c
@@ -153,6 +153,7 @@ static struct dentry *btrfs_fh_to_dentry(struct super_block *sb, struct fid *fh,
static struct dentry *btrfs_get_parent(struct dentry *child)
{
struct inode *dir = d_inode(child);
+ struct btrfs_fs_info *fs_info = btrfs_sb(dir->i_sb);
struct btrfs_root *root = BTRFS_I(dir)->root;
struct btrfs_path *path;
struct extent_buffer *leaf;
@@ -169,7 +170,7 @@ static struct dentry *btrfs_get_parent(struct dentry *child)
key.objectid = root->root_key.objectid;
key.type = BTRFS_ROOT_BACKREF_KEY;
key.offset = (u64)-1;
- root = root->fs_info->tree_root;
+ root = fs_info->tree_root;
} else {
key.objectid = btrfs_ino(dir);
key.type = BTRFS_INODE_REF_KEY;
@@ -205,13 +206,13 @@ static struct dentry *btrfs_get_parent(struct dentry *child)
btrfs_free_path(path);
if (found_key.type == BTRFS_ROOT_BACKREF_KEY) {
- return btrfs_get_dentry(root->fs_info->sb, key.objectid,
+ return btrfs_get_dentry(fs_info->sb, key.objectid,
found_key.offset, 0, 0);
}
key.type = BTRFS_INODE_ITEM_KEY;
key.offset = 0;
- return d_obtain_alias(btrfs_iget(root->fs_info->sb, &key, root, NULL));
+ return d_obtain_alias(btrfs_iget(fs_info->sb, &key, root, NULL));
fail:
btrfs_free_path(path);
return ERR_PTR(ret);
@@ -222,6 +223,7 @@ static int btrfs_get_name(struct dentry *parent, char *name,
{
struct inode *inode = d_inode(child);
struct inode *dir = d_inode(parent);
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_path *path;
struct btrfs_root *root = BTRFS_I(dir)->root;
struct btrfs_inode_ref *iref;
@@ -250,7 +252,7 @@ static int btrfs_get_name(struct dentry *parent, char *name,
key.objectid = BTRFS_I(inode)->root->root_key.objectid;
key.type = BTRFS_ROOT_BACKREF_KEY;
key.offset = (u64)-1;
- root = root->fs_info->tree_root;
+ root = fs_info->tree_root;
} else {
key.objectid = ino;
key.offset = btrfs_ino(dir);
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 2e395d4..03512c6 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -226,10 +226,11 @@ block_group_cache_tree_search(struct btrfs_fs_info *info, u64 bytenr,
static int add_excluded_extent(struct btrfs_root *root,
u64 start, u64 num_bytes)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
u64 end = start + num_bytes - 1;
- set_extent_bits(&root->fs_info->freed_extents[0],
+ set_extent_bits(&fs_info->freed_extents[0],
start, end, EXTENT_UPTODATE);
- set_extent_bits(&root->fs_info->freed_extents[1],
+ set_extent_bits(&fs_info->freed_extents[1],
start, end, EXTENT_UPTODATE);
return 0;
}
@@ -237,20 +238,22 @@ static int add_excluded_extent(struct btrfs_root *root,
static void free_excluded_extents(struct btrfs_root *root,
struct btrfs_block_group_cache *cache)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
u64 start, end;
start = cache->key.objectid;
end = start + cache->key.offset - 1;
- clear_extent_bits(&root->fs_info->freed_extents[0],
+ clear_extent_bits(&fs_info->freed_extents[0],
start, end, EXTENT_UPTODATE);
- clear_extent_bits(&root->fs_info->freed_extents[1],
+ clear_extent_bits(&fs_info->freed_extents[1],
start, end, EXTENT_UPTODATE);
}
static int exclude_super_stripes(struct btrfs_root *root,
struct btrfs_block_group_cache *cache)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
u64 bytenr;
u64 *logical;
int stripe_len;
@@ -267,7 +270,7 @@ static int exclude_super_stripes(struct btrfs_root *root,
for (i = 0; i < BTRFS_SUPER_MIRROR_MAX; i++) {
bytenr = btrfs_sb_offset(i);
- ret = btrfs_rmap_block(root->fs_info, cache->key.objectid,
+ ret = btrfs_rmap_block(fs_info, cache->key.objectid,
bytenr, 0, &logical, &nr, &stripe_len);
if (ret)
return ret;
@@ -332,10 +335,12 @@ static void put_caching_control(struct btrfs_caching_control *ctl)
static void fragment_free_space(struct btrfs_root *root,
struct btrfs_block_group_cache *block_group)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
+
u64 start = block_group->key.objectid;
u64 len = block_group->key.offset;
u64 chunk = block_group->flags & BTRFS_BLOCK_GROUP_METADATA ?
- root->fs_info->nodesize : root->fs_info->sectorsize;
+ fs_info->nodesize : fs_info->sectorsize;
u64 step = chunk << 1;
while (len > chunk) {
@@ -394,9 +399,9 @@ u64 add_new_free_space(struct btrfs_block_group_cache *block_group,
static int load_extent_tree_free(struct btrfs_caching_control *caching_ctl)
{
- struct btrfs_block_group_cache *block_group;
- struct btrfs_fs_info *fs_info;
- struct btrfs_root *extent_root;
+ struct btrfs_block_group_cache *block_group = caching_ctl->block_group;
+ struct btrfs_fs_info *fs_info = block_group->fs_info;
+ struct btrfs_root *extent_root = fs_info->extent_root;
struct btrfs_path *path;
struct extent_buffer *leaf;
struct btrfs_key key;
@@ -406,10 +411,6 @@ static int load_extent_tree_free(struct btrfs_caching_control *caching_ctl)
int ret;
bool wakeup = true;
- block_group = caching_ctl->block_group;
- fs_info = block_group->fs_info;
- extent_root = fs_info->extent_root;
-
path = btrfs_alloc_path();
if (!path)
return -ENOMEM;
@@ -780,6 +781,7 @@ void btrfs_clear_space_info_full(struct btrfs_fs_info *info)
/* simple helper to search for an existing data extent at a given offset */
int btrfs_lookup_data_extent(struct btrfs_root *root, u64 start, u64 len)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
int ret;
struct btrfs_key key;
struct btrfs_path *path;
@@ -791,8 +793,7 @@ int btrfs_lookup_data_extent(struct btrfs_root *root, u64 start, u64 len)
key.objectid = start;
key.offset = len;
key.type = BTRFS_EXTENT_ITEM_KEY;
- ret = btrfs_search_slot(NULL, root->fs_info->extent_root, &key, path,
- 0, 0);
+ ret = btrfs_search_slot(NULL, fs_info->extent_root, &key, path, 0, 0);
btrfs_free_path(path);
return ret;
}
@@ -810,6 +811,7 @@ int btrfs_lookup_extent_info(struct btrfs_trans_handle *trans,
struct btrfs_root *root, u64 bytenr,
u64 offset, int metadata, u64 *refs, u64 *flags)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_delayed_ref_head *head;
struct btrfs_delayed_ref_root *delayed_refs;
struct btrfs_path *path;
@@ -825,8 +827,8 @@ int btrfs_lookup_extent_info(struct btrfs_trans_handle *trans,
* If we don't have skinny metadata, don't bother doing anything
* different
*/
- if (metadata && !btrfs_fs_incompat(root->fs_info, SKINNY_METADATA)) {
- offset = root->fs_info->nodesize;
+ if (metadata && !btrfs_fs_incompat(fs_info, SKINNY_METADATA)) {
+ offset = fs_info->nodesize;
metadata = 0;
}
@@ -847,8 +849,7 @@ int btrfs_lookup_extent_info(struct btrfs_trans_handle *trans,
else
key.type = BTRFS_EXTENT_ITEM_KEY;
- ret = btrfs_search_slot(trans, root->fs_info->extent_root,
- &key, path, 0, 0);
+ ret = btrfs_search_slot(trans, fs_info->extent_root, &key, path, 0, 0);
if (ret < 0)
goto out_free;
@@ -859,7 +860,7 @@ int btrfs_lookup_extent_info(struct btrfs_trans_handle *trans,
path->slots[0]);
if (key.objectid == bytenr &&
key.type == BTRFS_EXTENT_ITEM_KEY &&
- key.offset == root->fs_info->nodesize)
+ key.offset == fs_info->nodesize)
ret = 0;
}
}
@@ -1540,6 +1541,7 @@ int lookup_inline_extent_backref(struct btrfs_trans_handle *trans,
u64 parent, u64 root_objectid,
u64 owner, u64 offset, int insert)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_key key;
struct extent_buffer *leaf;
struct btrfs_extent_item *ei;
@@ -1553,8 +1555,7 @@ int lookup_inline_extent_backref(struct btrfs_trans_handle *trans,
int want;
int ret;
int err = 0;
- bool skinny_metadata = btrfs_fs_incompat(root->fs_info,
- SKINNY_METADATA);
+ bool skinny_metadata = btrfs_fs_incompat(fs_info, SKINNY_METADATA);
key.objectid = bytenr;
key.type = BTRFS_EXTENT_ITEM_KEY;
@@ -2025,6 +2026,7 @@ static int btrfs_issue_discard(struct block_device *bdev, u64 start, u64 len,
int btrfs_discard_extent(struct btrfs_root *root, u64 bytenr,
u64 num_bytes, u64 *actual_bytes)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
int ret;
u64 discarded_bytes = 0;
struct btrfs_bio *bbio = NULL;
@@ -2034,10 +2036,10 @@ int btrfs_discard_extent(struct btrfs_root *root, u64 bytenr,
* Avoid races with device replace and make sure our bbio has devices
* associated to its stripes that don't go away while we are discarding.
*/
- btrfs_bio_counter_inc_blocked(root->fs_info);
+ btrfs_bio_counter_inc_blocked(fs_info);
/* Tell the block device(s) that the sectors can be discarded */
- ret = btrfs_map_block(root->fs_info, BTRFS_MAP_DISCARD,
- bytenr, &num_bytes, &bbio, 0);
+ ret = btrfs_map_block(fs_info, BTRFS_MAP_DISCARD, bytenr, &num_bytes,
+ &bbio, 0);
/* Error condition is -ENOMEM */
if (!ret) {
struct btrfs_bio_stripe *stripe = bbio->stripes;
@@ -2067,7 +2069,7 @@ int btrfs_discard_extent(struct btrfs_root *root, u64 bytenr,
}
btrfs_put_bbio(bbio);
}
- btrfs_bio_counter_dec(root->fs_info);
+ btrfs_bio_counter_dec(fs_info);
if (actual_bytes)
*actual_bytes = discarded_bytes;
@@ -2154,7 +2156,7 @@ static int __btrfs_inc_extent_ref(struct btrfs_trans_handle *trans,
path->reada = READA_FORWARD;
path->leave_spinning = 1;
/* now insert the actual backref */
- ret = insert_extent_backref(trans, root->fs_info->extent_root,
+ ret = insert_extent_backref(trans, fs_info->extent_root,
path, bytenr, parent, root_objectid,
owner, offset, refs_to_add);
if (ret)
@@ -2170,6 +2172,7 @@ static int run_delayed_data_ref(struct btrfs_trans_handle *trans,
struct btrfs_delayed_extent_op *extent_op,
int insert_reserved)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
int ret = 0;
struct btrfs_delayed_data_ref *ref;
struct btrfs_key ins;
@@ -2182,7 +2185,7 @@ static int run_delayed_data_ref(struct btrfs_trans_handle *trans,
ins.type = BTRFS_EXTENT_ITEM_KEY;
ref = btrfs_delayed_node_to_data_ref(node);
- trace_run_delayed_data_ref(root->fs_info, node, ref, node->action);
+ trace_run_delayed_data_ref(fs_info, node, ref, node->action);
if (node->type == BTRFS_SHARED_DATA_REF_KEY)
parent = ref->parent;
@@ -2234,6 +2237,7 @@ static int run_delayed_extent_op(struct btrfs_trans_handle *trans,
struct btrfs_delayed_ref_node *node,
struct btrfs_delayed_extent_op *extent_op)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_key key;
struct btrfs_path *path;
struct btrfs_extent_item *ei;
@@ -2246,7 +2250,7 @@ static int run_delayed_extent_op(struct btrfs_trans_handle *trans,
if (trans->aborted)
return 0;
- if (metadata && !btrfs_fs_incompat(root->fs_info, SKINNY_METADATA))
+ if (metadata && !btrfs_fs_incompat(fs_info, SKINNY_METADATA))
metadata = 0;
path = btrfs_alloc_path();
@@ -2266,8 +2270,7 @@ static int run_delayed_extent_op(struct btrfs_trans_handle *trans,
again:
path->reada = READA_FORWARD;
path->leave_spinning = 1;
- ret = btrfs_search_slot(trans, root->fs_info->extent_root, &key,
- path, 0, 1);
+ ret = btrfs_search_slot(trans, fs_info->extent_root, &key, path, 0, 1);
if (ret < 0) {
err = ret;
goto out;
@@ -2302,7 +2305,7 @@ static int run_delayed_extent_op(struct btrfs_trans_handle *trans,
item_size = btrfs_item_size_nr(leaf, path->slots[0]);
#ifdef BTRFS_COMPAT_EXTENT_TREE_V0
if (item_size < sizeof(*ei)) {
- ret = convert_extent_item_v0(trans, root->fs_info->extent_root,
+ ret = convert_extent_item_v0(trans, fs_info->extent_root,
path, (u64)-1, 0);
if (ret < 0) {
err = ret;
@@ -2328,16 +2331,16 @@ static int run_delayed_tree_ref(struct btrfs_trans_handle *trans,
struct btrfs_delayed_extent_op *extent_op,
int insert_reserved)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
int ret = 0;
struct btrfs_delayed_tree_ref *ref;
struct btrfs_key ins;
u64 parent = 0;
u64 ref_root = 0;
- bool skinny_metadata = btrfs_fs_incompat(root->fs_info,
- SKINNY_METADATA);
+ bool skinny_metadata = btrfs_fs_incompat(fs_info, SKINNY_METADATA);
ref = btrfs_delayed_node_to_tree_ref(node);
- trace_run_delayed_tree_ref(root->fs_info, node, ref, node->action);
+ trace_run_delayed_tree_ref(fs_info, node, ref, node->action);
if (node->type == BTRFS_SHARED_BLOCK_REF_KEY)
parent = ref->parent;
@@ -2388,6 +2391,7 @@ static int run_one_delayed_ref(struct btrfs_trans_handle *trans,
struct btrfs_delayed_extent_op *extent_op,
int insert_reserved)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
int ret = 0;
if (trans->aborted) {
@@ -2407,22 +2411,20 @@ static int run_one_delayed_ref(struct btrfs_trans_handle *trans,
*/
BUG_ON(extent_op);
head = btrfs_delayed_node_to_head(node);
- trace_run_delayed_ref_head(root->fs_info, node, head,
- node->action);
+ trace_run_delayed_ref_head(fs_info, node, head, node->action);
if (insert_reserved) {
btrfs_pin_extent(root, node->bytenr,
node->num_bytes, 1);
if (head->is_data) {
- ret = btrfs_del_csums(trans, root->fs_info,
+ ret = btrfs_del_csums(trans, fs_info,
node->bytenr,
node->num_bytes);
}
}
/* Also free its reserved qgroup space */
- btrfs_qgroup_free_delayed_ref(root->fs_info,
- head->qgroup_ref_root,
+ btrfs_qgroup_free_delayed_ref(fs_info, head->qgroup_ref_root,
head->qgroup_reserved);
return ret;
}
@@ -2748,18 +2750,19 @@ static u64 find_middle(struct rb_root *root)
static inline u64 heads_to_leaves(struct btrfs_root *root, u64 heads)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
u64 num_bytes;
num_bytes = heads * (sizeof(struct btrfs_extent_item) +
sizeof(struct btrfs_extent_inline_ref));
- if (!btrfs_fs_incompat(root->fs_info, SKINNY_METADATA))
+ if (!btrfs_fs_incompat(fs_info, SKINNY_METADATA))
num_bytes += heads * sizeof(struct btrfs_tree_block_info);
/*
* We don't ever fill up leaves all the way so multiply by 2 just to be
* closer to what we're really going to want to use.
*/
- return div_u64(num_bytes, BTRFS_LEAF_DATA_SIZE(root->fs_info));
+ return div_u64(num_bytes, BTRFS_LEAF_DATA_SIZE(fs_info));
}
/*
@@ -2768,14 +2771,15 @@ static inline u64 heads_to_leaves(struct btrfs_root *root, u64 heads)
*/
u64 btrfs_csum_bytes_to_leaves(struct btrfs_root *root, u64 csum_bytes)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
u64 csum_size;
u64 num_csums_per_leaf;
u64 num_csums;
- csum_size = BTRFS_MAX_ITEM_SIZE(root->fs_info);
+ csum_size = BTRFS_MAX_ITEM_SIZE(fs_info);
num_csums_per_leaf = div64_u64(csum_size,
- (u64)btrfs_super_csum_size(root->fs_info->super_copy));
- num_csums = div64_u64(csum_bytes, root->fs_info->sectorsize);
+ (u64)btrfs_super_csum_size(fs_info->super_copy));
+ num_csums = div64_u64(csum_bytes, fs_info->sectorsize);
num_csums += num_csums_per_leaf - 1;
num_csums = div64_u64(num_csums, num_csums_per_leaf);
return num_csums;
@@ -2784,6 +2788,7 @@ u64 btrfs_csum_bytes_to_leaves(struct btrfs_root *root, u64 csum_bytes)
int btrfs_check_space_for_delayed_refs(struct btrfs_trans_handle *trans,
struct btrfs_root *root)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_block_rsv *global_rsv;
u64 num_heads = trans->transaction->delayed_refs.num_heads_ready;
u64 csum_bytes = trans->transaction->delayed_refs.pending_csums;
@@ -2791,15 +2796,15 @@ int btrfs_check_space_for_delayed_refs(struct btrfs_trans_handle *trans,
u64 num_bytes, num_dirty_bgs_bytes;
int ret = 0;
- num_bytes = btrfs_calc_trans_metadata_size(root->fs_info, 1);
+ num_bytes = btrfs_calc_trans_metadata_size(fs_info, 1);
num_heads = heads_to_leaves(root, num_heads);
if (num_heads > 1)
- num_bytes += (num_heads - 1) * root->fs_info->nodesize;
+ num_bytes += (num_heads - 1) * fs_info->nodesize;
num_bytes <<= 1;
- num_bytes += btrfs_csum_bytes_to_leaves(root, csum_bytes) * root->fs_info->nodesize;
- num_dirty_bgs_bytes = btrfs_calc_trans_metadata_size(root->fs_info,
+ num_bytes += btrfs_csum_bytes_to_leaves(root, csum_bytes) * fs_info->nodesize;
+ num_dirty_bgs_bytes = btrfs_calc_trans_metadata_size(fs_info,
num_dirty_bgs);
- global_rsv = &root->fs_info->global_block_rsv;
+ global_rsv = &fs_info->global_block_rsv;
/*
* If we can't allocate any more chunks lets make sure we have _lots_ of
@@ -2892,6 +2897,7 @@ static void delayed_ref_async_start(struct btrfs_work *work)
int btrfs_async_run_delayed_refs(struct btrfs_root *root,
unsigned long count, u64 transid, int wait)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct async_delayed_refs *async;
int ret;
@@ -2899,7 +2905,7 @@ int btrfs_async_run_delayed_refs(struct btrfs_root *root,
if (!async)
return -ENOMEM;
- async->root = root->fs_info->tree_root;
+ async->root = fs_info->tree_root;
async->count = count;
async->error = 0;
async->transid = transid;
@@ -2912,7 +2918,7 @@ int btrfs_async_run_delayed_refs(struct btrfs_root *root,
btrfs_init_work(&async->work, btrfs_extent_refs_helper,
delayed_ref_async_start, NULL, NULL);
- btrfs_queue_work(root->fs_info->extent_workers, &async->work);
+ btrfs_queue_work(fs_info->extent_workers, &async->work);
if (wait) {
wait_for_completion(&async->wait);
@@ -2936,6 +2942,7 @@ int btrfs_async_run_delayed_refs(struct btrfs_root *root,
int btrfs_run_delayed_refs(struct btrfs_trans_handle *trans,
struct btrfs_root *root, unsigned long count)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct rb_node *node;
struct btrfs_delayed_ref_root *delayed_refs;
struct btrfs_delayed_ref_head *head;
@@ -2947,11 +2954,11 @@ int btrfs_run_delayed_refs(struct btrfs_trans_handle *trans,
if (trans->aborted)
return 0;
- if (test_bit(BTRFS_FS_CREATING_FREE_SPACE_TREE, &root->fs_info->flags))
+ if (test_bit(BTRFS_FS_CREATING_FREE_SPACE_TREE, &fs_info->flags))
return 0;
- if (root == root->fs_info->extent_root)
- root = root->fs_info->tree_root;
+ if (root == fs_info->extent_root)
+ root = fs_info->tree_root;
delayed_refs = &trans->transaction->delayed_refs;
if (count == 0)
@@ -3019,6 +3026,7 @@ int btrfs_set_disk_extent_flags(struct btrfs_trans_handle *trans,
u64 bytenr, u64 num_bytes, u64 flags,
int level, int is_data)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_delayed_extent_op *extent_op;
int ret;
@@ -3032,7 +3040,7 @@ int btrfs_set_disk_extent_flags(struct btrfs_trans_handle *trans,
extent_op->is_data = is_data ? true : false;
extent_op->level = level;
- ret = btrfs_add_delayed_extent_op(root->fs_info, trans, bytenr,
+ ret = btrfs_add_delayed_extent_op(fs_info, trans, bytenr,
num_bytes, extent_op);
if (ret)
btrfs_free_delayed_extent_op(extent_op);
@@ -3106,7 +3114,8 @@ static noinline int check_committed_ref(struct btrfs_trans_handle *trans,
struct btrfs_path *path,
u64 objectid, u64 offset, u64 bytenr)
{
- struct btrfs_root *extent_root = root->fs_info->extent_root;
+ struct btrfs_fs_info *fs_info = root->fs_info;
+ struct btrfs_root *extent_root = fs_info->extent_root;
struct extent_buffer *leaf;
struct btrfs_extent_data_ref *ref;
struct btrfs_extent_inline_ref *iref;
@@ -3213,6 +3222,7 @@ static int __btrfs_mod_ref(struct btrfs_trans_handle *trans,
struct extent_buffer *buf,
int full_backref, int inc)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
u64 bytenr;
u64 num_bytes;
u64 parent;
@@ -3227,7 +3237,7 @@ static int __btrfs_mod_ref(struct btrfs_trans_handle *trans,
u64, u64, u64, u64, u64, u64);
- if (btrfs_is_testing(root->fs_info))
+ if (btrfs_is_testing(fs_info))
return 0;
ref_root = btrfs_header_owner(buf);
@@ -3270,7 +3280,7 @@ static int __btrfs_mod_ref(struct btrfs_trans_handle *trans,
goto fail;
} else {
bytenr = btrfs_node_blockptr(buf, i);
- num_bytes = root->fs_info->nodesize;
+ num_bytes = fs_info->nodesize;
ret = process_func(trans, root, bytenr, num_bytes,
parent, ref_root, level - 1, 0);
if (ret)
@@ -3300,7 +3310,8 @@ static int write_one_cache_group(struct btrfs_trans_handle *trans,
struct btrfs_block_group_cache *cache)
{
int ret;
- struct btrfs_root *extent_root = root->fs_info->extent_root;
+ struct btrfs_fs_info *fs_info = root->fs_info;
+ struct btrfs_root *extent_root = fs_info->extent_root;
unsigned long bi;
struct extent_buffer *leaf;
@@ -3325,19 +3336,18 @@ static struct btrfs_block_group_cache *
next_block_group(struct btrfs_root *root,
struct btrfs_block_group_cache *cache)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct rb_node *node;
- spin_lock(&root->fs_info->block_group_cache_lock);
+ spin_lock(&fs_info->block_group_cache_lock);
/* If our block group was removed, we need a full search. */
if (RB_EMPTY_NODE(&cache->cache_node)) {
const u64 next_bytenr = cache->key.objectid + cache->key.offset;
- spin_unlock(&root->fs_info->block_group_cache_lock);
+ spin_unlock(&fs_info->block_group_cache_lock);
btrfs_put_block_group(cache);
- cache = btrfs_lookup_first_block_group(root->fs_info,
- next_bytenr);
- return cache;
+ cache = btrfs_lookup_first_block_group(fs_info, next_bytenr); return cache;
}
node = rb_next(&cache->cache_node);
btrfs_put_block_group(cache);
@@ -3347,7 +3357,7 @@ next_block_group(struct btrfs_root *root,
btrfs_get_block_group(cache);
} else
cache = NULL;
- spin_unlock(&root->fs_info->block_group_cache_lock);
+ spin_unlock(&fs_info->block_group_cache_lock);
return cache;
}
@@ -3355,7 +3365,8 @@ static int cache_save_setup(struct btrfs_block_group_cache *block_group,
struct btrfs_trans_handle *trans,
struct btrfs_path *path)
{
- struct btrfs_root *root = block_group->fs_info->tree_root;
+ struct btrfs_fs_info *fs_info = block_group->fs_info;
+ struct btrfs_root *root = fs_info->tree_root;
struct inode *inode = NULL;
u64 alloc_hint = 0;
int dcs = BTRFS_DC_ERROR;
@@ -3429,7 +3440,7 @@ static int cache_save_setup(struct btrfs_block_group_cache *block_group,
if (i_size_read(inode) > 0) {
ret = btrfs_check_trunc_cache_free_space(root,
- &root->fs_info->global_block_rsv);
+ &fs_info->global_block_rsv);
if (ret)
goto out_put;
@@ -3440,7 +3451,7 @@ static int cache_save_setup(struct btrfs_block_group_cache *block_group,
spin_lock(&block_group->lock);
if (block_group->cached != BTRFS_CACHE_FINISHED ||
- !btrfs_test_opt(root->fs_info, SPACE_CACHE)) {
+ !btrfs_test_opt(fs_info, SPACE_CACHE)) {
/*
* don't bother trying to write stuff out _if_
* a) we're not cached,
@@ -3511,12 +3522,13 @@ static int cache_save_setup(struct btrfs_block_group_cache *block_group,
int btrfs_setup_space_cache(struct btrfs_trans_handle *trans,
struct btrfs_root *root)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_block_group_cache *cache, *tmp;
struct btrfs_transaction *cur_trans = trans->transaction;
struct btrfs_path *path;
if (list_empty(&cur_trans->dirty_bgs) ||
- !btrfs_test_opt(root->fs_info, SPACE_CACHE))
+ !btrfs_test_opt(fs_info, SPACE_CACHE))
return 0;
path = btrfs_alloc_path();
@@ -3549,6 +3561,7 @@ int btrfs_setup_space_cache(struct btrfs_trans_handle *trans,
int btrfs_start_dirty_block_groups(struct btrfs_trans_handle *trans,
struct btrfs_root *root)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_block_group_cache *cache;
struct btrfs_transaction *cur_trans = trans->transaction;
int ret = 0;
@@ -3622,7 +3635,7 @@ int btrfs_start_dirty_block_groups(struct btrfs_trans_handle *trans,
if (cache->disk_cache_state == BTRFS_DC_SETUP) {
cache->io_ctl.inode = NULL;
- ret = btrfs_write_out_cache(root->fs_info, trans,
+ ret = btrfs_write_out_cache(fs_info, trans,
cache, path);
if (ret == 0 && cache->io_ctl.inode) {
num_started++;
@@ -3712,6 +3725,7 @@ int btrfs_start_dirty_block_groups(struct btrfs_trans_handle *trans,
int btrfs_write_dirty_block_groups(struct btrfs_trans_handle *trans,
struct btrfs_root *root)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_block_group_cache *cache;
struct btrfs_transaction *cur_trans = trans->transaction;
int ret = 0;
@@ -3775,7 +3789,7 @@ int btrfs_write_dirty_block_groups(struct btrfs_trans_handle *trans,
if (!ret && cache->disk_cache_state == BTRFS_DC_SETUP) {
cache->io_ctl.inode = NULL;
- ret = btrfs_write_out_cache(root->fs_info, trans,
+ ret = btrfs_write_out_cache(fs_info, trans,
cache, path);
if (ret == 0 && cache->io_ctl.inode) {
num_started++;
@@ -3836,10 +3850,11 @@ int btrfs_write_dirty_block_groups(struct btrfs_trans_handle *trans,
int btrfs_extent_readonly(struct btrfs_root *root, u64 bytenr)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_block_group_cache *block_group;
int readonly = 0;
- block_group = btrfs_lookup_block_group(root->fs_info, bytenr);
+ block_group = btrfs_lookup_block_group(fs_info, bytenr);
if (!block_group || block_group->ro)
readonly = 1;
if (block_group)
@@ -4050,7 +4065,8 @@ static u64 get_restripe_target(struct btrfs_fs_info *fs_info, u64 flags)
*/
static u64 btrfs_reduce_alloc_profile(struct btrfs_root *root, u64 flags)
{
- u64 num_devices = root->fs_info->fs_devices->rw_devices;
+ struct btrfs_fs_info *fs_info = root->fs_info;
+ u64 num_devices = fs_info->fs_devices->rw_devices;
u64 target;
u64 raid_type;
u64 allowed = 0;
@@ -4059,16 +4075,16 @@ static u64 btrfs_reduce_alloc_profile(struct btrfs_root *root, u64 flags)
* see if restripe for this chunk_type is in progress, if so
* try to reduce to the target profile
*/
- spin_lock(&root->fs_info->balance_lock);
- target = get_restripe_target(root->fs_info, flags);
+ spin_lock(&fs_info->balance_lock);
+ target = get_restripe_target(fs_info, flags);
if (target) {
/* pick target profile only if it's already available */
if ((flags & target) & BTRFS_EXTENDED_PROFILE_MASK) {
- spin_unlock(&root->fs_info->balance_lock);
+ spin_unlock(&fs_info->balance_lock);
return extended_to_chunk(target);
}
}
- spin_unlock(&root->fs_info->balance_lock);
+ spin_unlock(&fs_info->balance_lock);
/* First, mask out the RAID levels which aren't possible */
for (raid_type = 0; raid_type < BTRFS_NR_RAID_TYPES; raid_type++) {
@@ -4095,32 +4111,34 @@ static u64 btrfs_reduce_alloc_profile(struct btrfs_root *root, u64 flags)
static u64 get_alloc_profile(struct btrfs_root *root, u64 orig_flags)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
unsigned seq;
u64 flags;
do {
flags = orig_flags;
- seq = read_seqbegin(&root->fs_info->profiles_lock);
+ seq = read_seqbegin(&fs_info->profiles_lock);
if (flags & BTRFS_BLOCK_GROUP_DATA)
- flags |= root->fs_info->avail_data_alloc_bits;
+ flags |= fs_info->avail_data_alloc_bits;
else if (flags & BTRFS_BLOCK_GROUP_SYSTEM)
- flags |= root->fs_info->avail_system_alloc_bits;
+ flags |= fs_info->avail_system_alloc_bits;
else if (flags & BTRFS_BLOCK_GROUP_METADATA)
- flags |= root->fs_info->avail_metadata_alloc_bits;
- } while (read_seqretry(&root->fs_info->profiles_lock, seq));
+ flags |= fs_info->avail_metadata_alloc_bits;
+ } while (read_seqretry(&fs_info->profiles_lock, seq));
return btrfs_reduce_alloc_profile(root, flags);
}
u64 btrfs_get_alloc_profile(struct btrfs_root *root, int data)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
u64 flags;
u64 ret;
if (data)
flags = BTRFS_BLOCK_GROUP_DATA;
- else if (root == root->fs_info->chunk_root)
+ else if (root == fs_info->chunk_root)
flags = BTRFS_BLOCK_GROUP_SYSTEM;
else
flags = BTRFS_BLOCK_GROUP_METADATA;
@@ -4140,7 +4158,7 @@ int btrfs_alloc_data_chunk_ondemand(struct inode *inode, u64 bytes)
int have_pinned_space;
/* make sure bytes are sectorsize aligned */
- bytes = ALIGN(bytes, root->fs_info->sectorsize);
+ bytes = ALIGN(bytes, fs_info->sectorsize);
if (btrfs_is_free_space_inode(inode)) {
need_commit = 0;
@@ -4186,7 +4204,7 @@ int btrfs_alloc_data_chunk_ondemand(struct inode *inode, u64 bytes)
if (IS_ERR(trans))
return PTR_ERR(trans);
- ret = do_chunk_alloc(trans, root->fs_info->extent_root,
+ ret = do_chunk_alloc(trans, fs_info->extent_root,
alloc_target,
CHUNK_ALLOC_NO_FORCE);
btrfs_end_transaction(trans, root);
@@ -4218,12 +4236,13 @@ int btrfs_alloc_data_chunk_ondemand(struct inode *inode, u64 bytes)
/* commit the current transaction and try again */
commit_trans:
if (need_commit &&
- !atomic_read(&root->fs_info->open_ioctl_trans)) {
+ !atomic_read(&fs_info->open_ioctl_trans)) {
need_commit--;
if (need_commit > 0) {
btrfs_start_delalloc_roots(fs_info, 0, -1);
- btrfs_wait_ordered_roots(fs_info, -1, 0, (u64)-1);
+ btrfs_wait_ordered_roots(fs_info, -1, 0,
+ (u64)-1);
}
trans = btrfs_join_transaction(root);
@@ -4241,21 +4260,21 @@ int btrfs_alloc_data_chunk_ondemand(struct inode *inode, u64 bytes)
* operations. Wait for it to finish so that
* more space is released.
*/
- mutex_lock(&root->fs_info->cleaner_delayed_iput_mutex);
- mutex_unlock(&root->fs_info->cleaner_delayed_iput_mutex);
+ mutex_lock(&fs_info->cleaner_delayed_iput_mutex);
+ mutex_unlock(&fs_info->cleaner_delayed_iput_mutex);
goto again;
} else {
btrfs_end_transaction(trans, root);
}
}
- trace_btrfs_space_reservation(root->fs_info,
+ trace_btrfs_space_reservation(fs_info,
"space_info:enospc",
data_sinfo->flags, bytes, 1);
return -ENOSPC;
}
data_sinfo->bytes_may_use += bytes;
- trace_btrfs_space_reservation(root->fs_info, "space_info",
+ trace_btrfs_space_reservation(fs_info, "space_info",
data_sinfo->flags, bytes, 1);
spin_unlock(&data_sinfo->lock);
@@ -4269,13 +4288,13 @@ int btrfs_alloc_data_chunk_ondemand(struct inode *inode, u64 bytes)
*/
int btrfs_check_data_free_space(struct inode *inode, u64 start, u64 len)
{
- struct btrfs_root *root = BTRFS_I(inode)->root;
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
int ret;
/* align the range */
- len = round_up(start + len, root->fs_info->sectorsize) -
- round_down(start, root->fs_info->sectorsize);
- start = round_down(start, root->fs_info->sectorsize);
+ len = round_up(start + len, fs_info->sectorsize) -
+ round_down(start, fs_info->sectorsize);
+ start = round_down(start, fs_info->sectorsize);
ret = btrfs_alloc_data_chunk_ondemand(inode, len);
if (ret < 0)
@@ -4299,21 +4318,21 @@ int btrfs_check_data_free_space(struct inode *inode, u64 start, u64 len)
void btrfs_free_reserved_data_space_noquota(struct inode *inode, u64 start,
u64 len)
{
- struct btrfs_root *root = BTRFS_I(inode)->root;
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_space_info *data_sinfo;
/* Make sure the range is aligned to sectorsize */
- len = round_up(start + len, root->fs_info->sectorsize) -
- round_down(start, root->fs_info->sectorsize);
- start = round_down(start, root->fs_info->sectorsize);
+ len = round_up(start + len, fs_info->sectorsize) -
+ round_down(start, fs_info->sectorsize);
+ start = round_down(start, fs_info->sectorsize);
- data_sinfo = root->fs_info->data_sinfo;
+ data_sinfo = fs_info->data_sinfo;
spin_lock(&data_sinfo->lock);
if (WARN_ON(data_sinfo->bytes_may_use < len))
data_sinfo->bytes_may_use = 0;
else
data_sinfo->bytes_may_use -= len;
- trace_btrfs_space_reservation(root->fs_info, "space_info",
+ trace_btrfs_space_reservation(fs_info, "space_info",
data_sinfo->flags, len, 0);
spin_unlock(&data_sinfo->lock);
}
@@ -4359,7 +4378,8 @@ static inline u64 calc_global_rsv_need_space(struct btrfs_block_rsv *global)
static int should_alloc_chunk(struct btrfs_root *root,
struct btrfs_space_info *sinfo, int force)
{
- struct btrfs_block_rsv *global_rsv = &root->fs_info->global_block_rsv;
+ struct btrfs_fs_info *fs_info = root->fs_info;
+ struct btrfs_block_rsv *global_rsv = &fs_info->global_block_rsv;
u64 num_bytes = sinfo->total_bytes - sinfo->bytes_readonly;
u64 num_allocated = sinfo->bytes_used + sinfo->bytes_reserved;
u64 thresh;
@@ -4380,7 +4400,7 @@ static int should_alloc_chunk(struct btrfs_root *root,
* about 1% of the FS size.
*/
if (force == CHUNK_ALLOC_LIMITED) {
- thresh = btrfs_super_total_bytes(root->fs_info->super_copy);
+ thresh = btrfs_super_total_bytes(fs_info->super_copy);
thresh = max_t(u64, SZ_64M, div_factor_fine(thresh, 1));
if (num_bytes - num_allocated < thresh)
@@ -4394,13 +4414,14 @@ static int should_alloc_chunk(struct btrfs_root *root,
static u64 get_profile_num_devs(struct btrfs_root *root, u64 type)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
u64 num_dev;
if (type & (BTRFS_BLOCK_GROUP_RAID10 |
BTRFS_BLOCK_GROUP_RAID0 |
BTRFS_BLOCK_GROUP_RAID5 |
BTRFS_BLOCK_GROUP_RAID6))
- num_dev = root->fs_info->fs_devices->rw_devices;
+ num_dev = fs_info->fs_devices->rw_devices;
else if (type & BTRFS_BLOCK_GROUP_RAID1)
num_dev = 2;
else
@@ -4418,6 +4439,7 @@ void check_system_chunk(struct btrfs_trans_handle *trans,
struct btrfs_root *root,
u64 type)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_space_info *info;
u64 left;
u64 thresh;
@@ -4428,9 +4450,9 @@ void check_system_chunk(struct btrfs_trans_handle *trans,
* Needed because we can end up allocating a system chunk and for an
* atomic and race free space reservation in the chunk block reserve.
*/
- ASSERT(mutex_is_locked(&root->fs_info->chunk_mutex));
+ ASSERT(mutex_is_locked(&fs_info->chunk_mutex));
- info = __find_space_info(root->fs_info, BTRFS_BLOCK_GROUP_SYSTEM);
+ info = __find_space_info(fs_info, BTRFS_BLOCK_GROUP_SYSTEM);
spin_lock(&info->lock);
left = info->total_bytes - info->bytes_used - info->bytes_pinned -
info->bytes_reserved - info->bytes_readonly -
@@ -4440,19 +4462,19 @@ void check_system_chunk(struct btrfs_trans_handle *trans,
num_devs = get_profile_num_devs(root, type);
/* num_devs device items to update and 1 chunk item to add or remove */
- thresh = btrfs_calc_trunc_metadata_size(root->fs_info, num_devs) +
- btrfs_calc_trans_metadata_size(root->fs_info, 1);
+ thresh = btrfs_calc_trunc_metadata_size(fs_info, num_devs) +
+ btrfs_calc_trans_metadata_size(fs_info, 1);
- if (left < thresh && btrfs_test_opt(root->fs_info, ENOSPC_DEBUG)) {
- btrfs_info(root->fs_info, "left=%llu, need=%llu, flags=%llu",
- left, thresh, type);
- dump_space_info(root->fs_info, info, 0, 0);
+ if (left < thresh && btrfs_test_opt(fs_info, ENOSPC_DEBUG)) {
+ btrfs_info(fs_info, "left=%llu, need=%llu, flags=%llu",
+ left, thresh, type);
+ dump_space_info(fs_info, info, 0, 0);
}
if (left < thresh) {
u64 flags;
- flags = btrfs_get_alloc_profile(root->fs_info->chunk_root, 0);
+ flags = btrfs_get_alloc_profile(fs_info->chunk_root, 0);
/*
* Ignore failure to create system chunk. We might end up not
* needing it, as we might not need to COW all nodes/leafs from
@@ -4463,8 +4485,8 @@ void check_system_chunk(struct btrfs_trans_handle *trans,
}
if (!ret) {
- ret = btrfs_block_rsv_add(root->fs_info->chunk_root,
- &root->fs_info->chunk_block_rsv,
+ ret = btrfs_block_rsv_add(fs_info->chunk_root,
+ &fs_info->chunk_block_rsv,
thresh, BTRFS_RESERVE_NO_FLUSH);
if (!ret)
trans->chunk_bytes_reserved += thresh;
@@ -4492,10 +4514,9 @@ static int do_chunk_alloc(struct btrfs_trans_handle *trans,
if (trans->allocating_chunk)
return -ENOSPC;
- space_info = __find_space_info(extent_root->fs_info, flags);
+ space_info = __find_space_info(fs_info, flags);
if (!space_info) {
- ret = update_space_info(extent_root->fs_info, flags,
- 0, 0, 0, &space_info);
+ ret = update_space_info(fs_info, flags, 0, 0, 0, &space_info);
BUG_ON(ret); /* -ENOMEM */
}
BUG_ON(!space_info); /* Logic error */
@@ -4607,7 +4628,8 @@ static int can_overcommit(struct btrfs_root *root,
struct btrfs_space_info *space_info, u64 bytes,
enum btrfs_reserve_flush_enum flush)
{
- struct btrfs_block_rsv *global_rsv;
+ struct btrfs_fs_info *fs_info = root->fs_info;
+ struct btrfs_block_rsv *global_rsv = &fs_info->global_block_rsv;
u64 profile;
u64 space_size;
u64 avail;
@@ -4617,8 +4639,6 @@ static int can_overcommit(struct btrfs_root *root,
if (space_info->flags & BTRFS_BLOCK_GROUP_DATA)
return 0;
- BUG_ON(root->fs_info == NULL);
- global_rsv = &root->fs_info->global_block_rsv;
profile = btrfs_get_alloc_profile(root, 0);
used = space_info->bytes_used + space_info->bytes_reserved +
space_info->bytes_pinned + space_info->bytes_readonly;
@@ -4637,9 +4657,9 @@ static int can_overcommit(struct btrfs_root *root,
used += space_info->bytes_may_use;
- spin_lock(&root->fs_info->free_chunk_lock);
- avail = root->fs_info->free_chunk_space;
- spin_unlock(&root->fs_info->free_chunk_lock);
+ spin_lock(&fs_info->free_chunk_lock);
+ avail = fs_info->free_chunk_space;
+ spin_unlock(&fs_info->free_chunk_lock);
/*
* If we have dup, raid1 or raid10 then only half of the free
@@ -4670,7 +4690,8 @@ static int can_overcommit(struct btrfs_root *root,
static void btrfs_writeback_inodes_sb_nr(struct btrfs_root *root,
unsigned long nr_pages, int nr_items)
{
- struct super_block *sb = root->fs_info->sb;
+ struct btrfs_fs_info *fs_info = root->fs_info;
+ struct super_block *sb = fs_info->sb;
if (down_read_trylock(&sb->s_umount)) {
writeback_inodes_sb_nr(sb, nr_pages, WB_REASON_FS_FREE_SPACE);
@@ -4683,10 +4704,9 @@ static void btrfs_writeback_inodes_sb_nr(struct btrfs_root *root,
* the filesystem is readonly(all dirty pages are written to
* the disk).
*/
- btrfs_start_delalloc_roots(root->fs_info, 0, nr_items);
+ btrfs_start_delalloc_roots(fs_info, 0, nr_items);
if (!current->journal_info)
- btrfs_wait_ordered_roots(root->fs_info, nr_items,
- 0, (u64)-1);
+ btrfs_wait_ordered_roots(fs_info, nr_items, 0, (u64)-1);
}
}
@@ -4710,6 +4730,7 @@ static inline int calc_reclaim_items_nr(struct btrfs_root *root, u64 to_reclaim)
static void shrink_delalloc(struct btrfs_root *root, u64 to_reclaim, u64 orig,
bool wait_ordered)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_block_rsv *block_rsv;
struct btrfs_space_info *space_info;
struct btrfs_trans_handle *trans;
@@ -4726,17 +4747,16 @@ static void shrink_delalloc(struct btrfs_root *root, u64 to_reclaim, u64 orig,
to_reclaim = (u64)items * EXTENT_SIZE_PER_ITEM;
trans = (struct btrfs_trans_handle *)current->journal_info;
- block_rsv = &root->fs_info->delalloc_block_rsv;
+ block_rsv = &fs_info->delalloc_block_rsv;
space_info = block_rsv->space_info;
delalloc_bytes = percpu_counter_sum_positive(
- &root->fs_info->delalloc_bytes);
+ &fs_info->delalloc_bytes);
if (delalloc_bytes == 0) {
if (trans)
return;
if (wait_ordered)
- btrfs_wait_ordered_roots(root->fs_info, items,
- 0, (u64)-1);
+ btrfs_wait_ordered_roots(fs_info, items, 0, (u64)-1);
return;
}
@@ -4749,7 +4769,7 @@ static void shrink_delalloc(struct btrfs_root *root, u64 to_reclaim, u64 orig,
* We need to wait for the async pages to actually start before
* we do anything.
*/
- max_reclaim = atomic_read(&root->fs_info->async_delalloc_pages);
+ max_reclaim = atomic_read(&fs_info->async_delalloc_pages);
if (!max_reclaim)
goto skip_async;
@@ -4758,8 +4778,8 @@ static void shrink_delalloc(struct btrfs_root *root, u64 to_reclaim, u64 orig,
else
max_reclaim -= nr_pages;
- wait_event(root->fs_info->async_submit_wait,
- atomic_read(&root->fs_info->async_delalloc_pages) <=
+ wait_event(fs_info->async_submit_wait,
+ atomic_read(&fs_info->async_delalloc_pages) <=
(int)max_reclaim);
skip_async:
if (!trans)
@@ -4780,15 +4800,14 @@ static void shrink_delalloc(struct btrfs_root *root, u64 to_reclaim, u64 orig,
loops++;
if (wait_ordered && !trans) {
- btrfs_wait_ordered_roots(root->fs_info, items,
- 0, (u64)-1);
+ btrfs_wait_ordered_roots(fs_info, items, 0, (u64)-1);
} else {
time_left = schedule_timeout_killable(1);
if (time_left)
break;
}
delalloc_bytes = percpu_counter_sum_positive(
- &root->fs_info->delalloc_bytes);
+ &fs_info->delalloc_bytes);
}
}
@@ -4806,7 +4825,8 @@ static int may_commit_transaction(struct btrfs_root *root,
struct btrfs_space_info *space_info,
u64 bytes, int force)
{
- struct btrfs_block_rsv *delayed_rsv = &root->fs_info->delayed_block_rsv;
+ struct btrfs_fs_info *fs_info = root->fs_info;
+ struct btrfs_block_rsv *delayed_rsv = &fs_info->delayed_block_rsv;
struct btrfs_trans_handle *trans;
trans = (struct btrfs_trans_handle *)current->journal_info;
@@ -4855,6 +4875,7 @@ static int flush_space(struct btrfs_root *root,
struct btrfs_space_info *space_info, u64 num_bytes,
u64 orig_bytes, int state)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_trans_handle *trans;
int nr;
int ret = 0;
@@ -4886,7 +4907,7 @@ static int flush_space(struct btrfs_root *root,
ret = PTR_ERR(trans);
break;
}
- ret = do_chunk_alloc(trans, root->fs_info->extent_root,
+ ret = do_chunk_alloc(trans, fs_info->extent_root,
btrfs_get_alloc_profile(root, 0),
CHUNK_ALLOC_NO_FORCE);
btrfs_end_transaction(trans, root);
@@ -4901,7 +4922,7 @@ static int flush_space(struct btrfs_root *root,
break;
}
- trace_btrfs_flush_space(root->fs_info, space_info->flags, num_bytes,
+ trace_btrfs_flush_space(fs_info, space_info->flags, num_bytes,
orig_bytes, state, ret);
return ret;
}
@@ -4947,6 +4968,7 @@ btrfs_calc_reclaim_metadata_size(struct btrfs_root *root,
static inline int need_do_async_reclaim(struct btrfs_space_info *space_info,
struct btrfs_root *root, u64 used)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
u64 thresh = div_factor_fine(space_info->total_bytes, 98);
/* If we're just plain full then async reclaim just slows us down. */
@@ -4956,9 +4978,8 @@ static inline int need_do_async_reclaim(struct btrfs_space_info *space_info,
if (!btrfs_calc_reclaim_metadata_size(root, space_info))
return 0;
- return (used >= thresh && !btrfs_fs_closing(root->fs_info) &&
- !test_bit(BTRFS_FS_STATE_REMOUNTING,
- &root->fs_info->fs_state));
+ return (used >= thresh && !btrfs_fs_closing(fs_info) &&
+ !test_bit(BTRFS_FS_STATE_REMOUNTING, &fs_info->fs_state));
}
static void wake_all_tickets(struct list_head *head)
@@ -5138,6 +5159,7 @@ static int __reserve_metadata_bytes(struct btrfs_root *root,
u64 orig_bytes,
enum btrfs_reserve_flush_enum flush)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct reserve_ticket ticket;
u64 used;
int ret = 0;
@@ -5158,15 +5180,13 @@ static int __reserve_metadata_bytes(struct btrfs_root *root,
*/
if (used + orig_bytes <= space_info->total_bytes) {
space_info->bytes_may_use += orig_bytes;
- trace_btrfs_space_reservation(root->fs_info, "space_info",
- space_info->flags, orig_bytes,
- 1);
+ trace_btrfs_space_reservation(fs_info, "space_info",
+ space_info->flags, orig_bytes, 1);
ret = 0;
} else if (can_overcommit(root, space_info, orig_bytes, flush)) {
space_info->bytes_may_use += orig_bytes;
- trace_btrfs_space_reservation(root->fs_info, "space_info",
- space_info->flags, orig_bytes,
- 1);
+ trace_btrfs_space_reservation(fs_info, "space_info",
+ space_info->flags, orig_bytes, 1);
ret = 0;
}
@@ -5185,7 +5205,7 @@ static int __reserve_metadata_bytes(struct btrfs_root *root,
list_add_tail(&ticket.list, &space_info->tickets);
if (!space_info->flush) {
space_info->flush = 1;
- trace_btrfs_trigger_flush(root->fs_info,
+ trace_btrfs_trigger_flush(fs_info,
space_info->flags,
orig_bytes, flush,
"enospc");
@@ -5203,15 +5223,13 @@ static int __reserve_metadata_bytes(struct btrfs_root *root,
* which means we won't have fs_info->fs_root set, so don't do
* the async reclaim as we will panic.
*/
- if (!test_bit(BTRFS_FS_LOG_RECOVERING, &root->fs_info->flags) &&
+ if (!test_bit(BTRFS_FS_LOG_RECOVERING, &fs_info->flags) &&
need_do_async_reclaim(space_info, root, used) &&
- !work_busy(&root->fs_info->async_reclaim_work)) {
- trace_btrfs_trigger_flush(root->fs_info,
- space_info->flags,
- orig_bytes, flush,
- "preempt");
+ !work_busy(&fs_info->async_reclaim_work)) {
+ trace_btrfs_trigger_flush(fs_info, space_info->flags,
+ orig_bytes, flush, "preempt");
queue_work(system_unbound_wq,
- &root->fs_info->async_reclaim_work);
+ &fs_info->async_reclaim_work);
}
}
spin_unlock(&space_info->lock);
@@ -5219,19 +5237,19 @@ static int __reserve_metadata_bytes(struct btrfs_root *root,
return ret;
if (flush == BTRFS_RESERVE_FLUSH_ALL)
- return wait_reserve_ticket(root->fs_info, space_info, &ticket,
+ return wait_reserve_ticket(fs_info, space_info, &ticket,
orig_bytes);
ret = 0;
- priority_reclaim_metadata_space(root->fs_info, space_info, &ticket);
+ priority_reclaim_metadata_space(fs_info, space_info, &ticket);
spin_lock(&space_info->lock);
if (ticket.bytes) {
if (ticket.bytes < orig_bytes) {
u64 num_bytes = orig_bytes - ticket.bytes;
space_info->bytes_may_use -= num_bytes;
- trace_btrfs_space_reservation(root->fs_info,
- "space_info", space_info->flags,
- num_bytes, 0);
+ trace_btrfs_space_reservation(fs_info, "space_info",
+ space_info->flags,
+ num_bytes, 0);
}
list_del_init(&ticket.list);
@@ -5261,22 +5279,20 @@ static int reserve_metadata_bytes(struct btrfs_root *root,
u64 orig_bytes,
enum btrfs_reserve_flush_enum flush)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
+ struct btrfs_block_rsv *global_rsv = &fs_info->global_block_rsv;
int ret;
ret = __reserve_metadata_bytes(root, block_rsv->space_info, orig_bytes,
flush);
if (ret == -ENOSPC &&
unlikely(root->orphan_cleanup_state == ORPHAN_CLEANUP_STARTED)) {
- struct btrfs_block_rsv *global_rsv =
- &root->fs_info->global_block_rsv;
-
if (block_rsv != global_rsv &&
!block_rsv_use_bytes(global_rsv, orig_bytes))
ret = 0;
}
if (ret == -ENOSPC)
- trace_btrfs_space_reservation(root->fs_info,
- "space_info:enospc",
+ trace_btrfs_space_reservation(fs_info, "space_info:enospc",
block_rsv->space_info->flags,
orig_bytes, 1);
return ret;
@@ -5286,18 +5302,19 @@ static struct btrfs_block_rsv *get_block_rsv(
const struct btrfs_trans_handle *trans,
const struct btrfs_root *root)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_block_rsv *block_rsv = NULL;
if (test_bit(BTRFS_ROOT_REF_COWS, &root->state) ||
- (root == root->fs_info->csum_root && trans->adding_csums) ||
- (root == root->fs_info->uuid_root))
+ (root == fs_info->csum_root && trans->adding_csums) ||
+ (root == fs_info->uuid_root))
block_rsv = trans->block_rsv;
if (!block_rsv)
block_rsv = root->block_rsv;
if (!block_rsv)
- block_rsv = &root->fs_info->empty_block_rsv;
+ block_rsv = &fs_info->empty_block_rsv;
return block_rsv;
}
@@ -5619,12 +5636,13 @@ void btrfs_block_rsv_release(struct btrfs_root *root,
struct btrfs_block_rsv *block_rsv,
u64 num_bytes)
{
- struct btrfs_block_rsv *global_rsv = &root->fs_info->global_block_rsv;
+ struct btrfs_fs_info *fs_info = root->fs_info;
+ struct btrfs_block_rsv *global_rsv = &fs_info->global_block_rsv;
+
if (global_rsv == block_rsv ||
block_rsv->space_info != global_rsv->space_info)
global_rsv = NULL;
- block_rsv_release_bytes(root->fs_info, block_rsv, global_rsv,
- num_bytes);
+ block_rsv_release_bytes(fs_info, block_rsv, global_rsv, num_bytes);
}
static void update_global_block_rsv(struct btrfs_fs_info *fs_info)
@@ -5721,13 +5739,15 @@ static void release_global_block_rsv(struct btrfs_fs_info *fs_info)
void btrfs_trans_release_metadata(struct btrfs_trans_handle *trans,
struct btrfs_root *root)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
+
if (!trans->block_rsv)
return;
if (!trans->bytes_reserved)
return;
- trace_btrfs_space_reservation(root->fs_info, "transaction",
+ trace_btrfs_space_reservation(fs_info, "transaction",
trans->transid, trans->bytes_reserved, 0);
btrfs_block_rsv_release(root, trans->block_rsv, trans->bytes_reserved);
trans->bytes_reserved = 0;
@@ -5755,6 +5775,7 @@ void btrfs_trans_release_chunk_metadata(struct btrfs_trans_handle *trans)
int btrfs_orphan_reserve_metadata(struct btrfs_trans_handle *trans,
struct inode *inode)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_root *root = BTRFS_I(inode)->root;
/*
* We always use trans->block_rsv here as we will have reserved space
@@ -5770,17 +5791,20 @@ int btrfs_orphan_reserve_metadata(struct btrfs_trans_handle *trans,
* added it, so this takes the reservation so we can release it later
* when we are truly done with the orphan item.
*/
- u64 num_bytes = btrfs_calc_trans_metadata_size(root->fs_info, 1);
- trace_btrfs_space_reservation(root->fs_info, "orphan",
+ u64 num_bytes = btrfs_calc_trans_metadata_size(fs_info, 1);
+
+ trace_btrfs_space_reservation(fs_info, "orphan",
btrfs_ino(inode), num_bytes, 1);
return btrfs_block_rsv_migrate(src_rsv, dst_rsv, num_bytes, 1);
}
void btrfs_orphan_release_metadata(struct inode *inode)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_root *root = BTRFS_I(inode)->root;
- u64 num_bytes = btrfs_calc_trans_metadata_size(root->fs_info, 1);
- trace_btrfs_space_reservation(root->fs_info, "orphan",
+ u64 num_bytes = btrfs_calc_trans_metadata_size(fs_info, 1);
+
+ trace_btrfs_space_reservation(fs_info, "orphan",
btrfs_ino(inode), num_bytes, 0);
btrfs_block_rsv_release(root, root->orphan_block_rsv, num_bytes);
}
@@ -5807,11 +5831,12 @@ int btrfs_subvolume_reserve_metadata(struct btrfs_root *root,
{
u64 num_bytes;
int ret;
- struct btrfs_block_rsv *global_rsv = &root->fs_info->global_block_rsv;
+ struct btrfs_fs_info *fs_info = root->fs_info;
+ struct btrfs_block_rsv *global_rsv = &fs_info->global_block_rsv;
- if (test_bit(BTRFS_FS_QUOTA_ENABLED, &root->fs_info->flags)) {
+ if (test_bit(BTRFS_FS_QUOTA_ENABLED, &fs_info->flags)) {
/* One for parent inode, two for dir entries */
- num_bytes = 3 * root->fs_info->nodesize;
+ num_bytes = 3 * fs_info->nodesize;
ret = btrfs_qgroup_reserve_meta(root, num_bytes);
if (ret)
return ret;
@@ -5821,8 +5846,8 @@ int btrfs_subvolume_reserve_metadata(struct btrfs_root *root,
*qgroup_reserved = num_bytes;
- num_bytes = btrfs_calc_trans_metadata_size(root->fs_info, items);
- rsv->space_info = __find_space_info(root->fs_info,
+ num_bytes = btrfs_calc_trans_metadata_size(fs_info, items);
+ rsv->space_info = __find_space_info(fs_info,
BTRFS_BLOCK_GROUP_METADATA);
ret = btrfs_block_rsv_add(root, rsv, num_bytes,
BTRFS_RESERVE_FLUSH_ALL);
@@ -5906,6 +5931,7 @@ static unsigned drop_outstanding_extent(struct inode *inode, u64 num_bytes)
static u64 calc_csum_metadata_size(struct inode *inode, u64 num_bytes,
int reserve)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_root *root = BTRFS_I(inode)->root;
u64 old_csums, num_csums;
@@ -5925,17 +5951,17 @@ static u64 calc_csum_metadata_size(struct inode *inode, u64 num_bytes,
return 0;
if (reserve)
- return btrfs_calc_trans_metadata_size(root->fs_info,
+ return btrfs_calc_trans_metadata_size(fs_info,
num_csums - old_csums);
- return btrfs_calc_trans_metadata_size(root->fs_info,
- old_csums - num_csums);
+ return btrfs_calc_trans_metadata_size(fs_info, old_csums - num_csums);
}
int btrfs_delalloc_reserve_metadata(struct inode *inode, u64 num_bytes)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_root *root = BTRFS_I(inode)->root;
- struct btrfs_block_rsv *block_rsv = &root->fs_info->delalloc_block_rsv;
+ struct btrfs_block_rsv *block_rsv = &fs_info->delalloc_block_rsv;
u64 to_reserve = 0;
u64 csum_bytes;
unsigned nr_extents = 0;
@@ -5962,13 +5988,13 @@ int btrfs_delalloc_reserve_metadata(struct inode *inode, u64 num_bytes)
}
if (flush != BTRFS_RESERVE_NO_FLUSH &&
- btrfs_transaction_in_commit(root->fs_info))
+ btrfs_transaction_in_commit(fs_info))
schedule_timeout(1);
if (delalloc_lock)
mutex_lock(&BTRFS_I(inode)->delalloc_mutex);
- num_bytes = ALIGN(num_bytes, root->fs_info->sectorsize);
+ num_bytes = ALIGN(num_bytes, fs_info->sectorsize);
spin_lock(&BTRFS_I(inode)->lock);
nr_extents = (unsigned)div64_u64(num_bytes +
@@ -5983,15 +6009,14 @@ int btrfs_delalloc_reserve_metadata(struct inode *inode, u64 num_bytes)
BTRFS_I(inode)->reserved_extents;
/* We always want to reserve a slot for updating the inode. */
- to_reserve = btrfs_calc_trans_metadata_size(root->fs_info,
- nr_extents + 1);
+ to_reserve = btrfs_calc_trans_metadata_size(fs_info, nr_extents + 1);
to_reserve += calc_csum_metadata_size(inode, num_bytes, 1);
csum_bytes = BTRFS_I(inode)->csum_bytes;
spin_unlock(&BTRFS_I(inode)->lock);
- if (test_bit(BTRFS_FS_QUOTA_ENABLED, &root->fs_info->flags)) {
+ if (test_bit(BTRFS_FS_QUOTA_ENABLED, &fs_info->flags)) {
ret = btrfs_qgroup_reserve_meta(root,
- nr_extents * root->fs_info->nodesize);
+ nr_extents * fs_info->nodesize);
if (ret)
goto out_fail;
}
@@ -5999,14 +6024,14 @@ int btrfs_delalloc_reserve_metadata(struct inode *inode, u64 num_bytes)
ret = btrfs_block_rsv_add(root, block_rsv, to_reserve, flush);
if (unlikely(ret)) {
btrfs_qgroup_free_meta(root,
- nr_extents * root->fs_info->nodesize);
+ nr_extents * fs_info->nodesize);
goto out_fail;
}
spin_lock(&BTRFS_I(inode)->lock);
if (test_and_set_bit(BTRFS_INODE_DELALLOC_META_RESERVED,
&BTRFS_I(inode)->runtime_flags)) {
- to_reserve -= btrfs_calc_trans_metadata_size(root->fs_info, 1);
+ to_reserve -= btrfs_calc_trans_metadata_size(fs_info, 1);
release_extra = true;
}
BTRFS_I(inode)->reserved_extents += nr_extents;
@@ -6016,11 +6041,11 @@ int btrfs_delalloc_reserve_metadata(struct inode *inode, u64 num_bytes)
mutex_unlock(&BTRFS_I(inode)->delalloc_mutex);
if (to_reserve)
- trace_btrfs_space_reservation(root->fs_info, "delalloc",
+ trace_btrfs_space_reservation(fs_info, "delalloc",
btrfs_ino(inode), to_reserve, 1);
if (release_extra)
btrfs_block_rsv_release(root, block_rsv,
- btrfs_calc_trans_metadata_size(root->fs_info, 1));
+ btrfs_calc_trans_metadata_size(fs_info, 1));
return 0;
out_fail:
@@ -6075,12 +6100,11 @@ int btrfs_delalloc_reserve_metadata(struct inode *inode, u64 num_bytes)
}
spin_unlock(&BTRFS_I(inode)->lock);
if (dropped)
- to_free += btrfs_calc_trans_metadata_size(root->fs_info,
- dropped);
+ to_free += btrfs_calc_trans_metadata_size(fs_info, dropped);
if (to_free) {
btrfs_block_rsv_release(root, block_rsv, to_free);
- trace_btrfs_space_reservation(root->fs_info, "delalloc",
+ trace_btrfs_space_reservation(fs_info, "delalloc",
btrfs_ino(inode), to_free, 0);
}
if (delalloc_lock)
@@ -6099,11 +6123,12 @@ int btrfs_delalloc_reserve_metadata(struct inode *inode, u64 num_bytes)
*/
void btrfs_delalloc_release_metadata(struct inode *inode, u64 num_bytes)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_root *root = BTRFS_I(inode)->root;
u64 to_free = 0;
unsigned dropped;
- num_bytes = ALIGN(num_bytes, root->fs_info->sectorsize);
+ num_bytes = ALIGN(num_bytes, fs_info->sectorsize);
spin_lock(&BTRFS_I(inode)->lock);
dropped = drop_outstanding_extent(inode, num_bytes);
@@ -6111,17 +6136,15 @@ void btrfs_delalloc_release_metadata(struct inode *inode, u64 num_bytes)
to_free = calc_csum_metadata_size(inode, num_bytes, 0);
spin_unlock(&BTRFS_I(inode)->lock);
if (dropped > 0)
- to_free += btrfs_calc_trans_metadata_size(root->fs_info,
- dropped);
+ to_free += btrfs_calc_trans_metadata_size(fs_info, dropped);
- if (btrfs_is_testing(root->fs_info))
+ if (btrfs_is_testing(fs_info))
return;
- trace_btrfs_space_reservation(root->fs_info, "delalloc",
+ trace_btrfs_space_reservation(fs_info, "delalloc",
btrfs_ino(inode), to_free, 0);
- btrfs_block_rsv_release(root, &root->fs_info->delalloc_block_rsv,
- to_free);
+ btrfs_block_rsv_release(root, &fs_info->delalloc_block_rsv, to_free);
}
/**
@@ -6251,7 +6274,7 @@ static int update_block_group(struct btrfs_trans_handle *trans,
spin_unlock(&cache->lock);
spin_unlock(&cache->space_info->lock);
- trace_btrfs_space_reservation(root->fs_info, "pinned",
+ trace_btrfs_space_reservation(info, "pinned",
cache->space_info->flags,
num_bytes, 1);
set_extent_dirty(info->pinned_extents,
@@ -6293,17 +6316,18 @@ static int update_block_group(struct btrfs_trans_handle *trans,
static u64 first_logical_byte(struct btrfs_root *root, u64 search_start)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_block_group_cache *cache;
u64 bytenr;
- spin_lock(&root->fs_info->block_group_cache_lock);
- bytenr = root->fs_info->first_logical_byte;
- spin_unlock(&root->fs_info->block_group_cache_lock);
+ spin_lock(&fs_info->block_group_cache_lock);
+ bytenr = fs_info->first_logical_byte;
+ spin_unlock(&fs_info->block_group_cache_lock);
if (bytenr < (u64)-1)
return bytenr;
- cache = btrfs_lookup_first_block_group(root->fs_info, search_start);
+ cache = btrfs_lookup_first_block_group(fs_info, search_start);
if (!cache)
return 0;
@@ -6317,6 +6341,8 @@ static int pin_down_extent(struct btrfs_root *root,
struct btrfs_block_group_cache *cache,
u64 bytenr, u64 num_bytes, int reserved)
{
+ struct btrfs_fs_info *fs_info = cache->fs_info;
+
spin_lock(&cache->space_info->lock);
spin_lock(&cache->lock);
cache->pinned += num_bytes;
@@ -6328,9 +6354,9 @@ static int pin_down_extent(struct btrfs_root *root,
spin_unlock(&cache->lock);
spin_unlock(&cache->space_info->lock);
- trace_btrfs_space_reservation(root->fs_info, "pinned",
+ trace_btrfs_space_reservation(fs_info, "pinned",
cache->space_info->flags, num_bytes, 1);
- set_extent_dirty(root->fs_info->pinned_extents, bytenr,
+ set_extent_dirty(fs_info->pinned_extents, bytenr,
bytenr + num_bytes - 1, GFP_NOFS | __GFP_NOFAIL);
return 0;
}
@@ -6341,9 +6367,10 @@ static int pin_down_extent(struct btrfs_root *root,
int btrfs_pin_extent(struct btrfs_root *root,
u64 bytenr, u64 num_bytes, int reserved)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_block_group_cache *cache;
- cache = btrfs_lookup_block_group(root->fs_info, bytenr);
+ cache = btrfs_lookup_block_group(fs_info, bytenr);
BUG_ON(!cache); /* Logic error */
pin_down_extent(root, cache, bytenr, num_bytes, reserved);
@@ -6358,10 +6385,11 @@ int btrfs_pin_extent(struct btrfs_root *root,
int btrfs_pin_extent_for_log_replay(struct btrfs_root *root,
u64 bytenr, u64 num_bytes)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_block_group_cache *cache;
int ret;
- cache = btrfs_lookup_block_group(root->fs_info, bytenr);
+ cache = btrfs_lookup_block_group(fs_info, bytenr);
if (!cache)
return -EINVAL;
@@ -6383,11 +6411,12 @@ int btrfs_pin_extent_for_log_replay(struct btrfs_root *root,
static int __exclude_logged_extent(struct btrfs_root *root, u64 start, u64 num_bytes)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
int ret;
struct btrfs_block_group_cache *block_group;
struct btrfs_caching_control *caching_ctl;
- block_group = btrfs_lookup_block_group(root->fs_info, start);
+ block_group = btrfs_lookup_block_group(fs_info, start);
if (!block_group)
return -EINVAL;
@@ -6615,8 +6644,9 @@ static struct btrfs_free_cluster *
fetch_cluster_info(struct btrfs_root *root, struct btrfs_space_info *space_info,
u64 *empty_cluster)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_free_cluster *ret = NULL;
- bool ssd = btrfs_test_opt(root->fs_info, SSD);
+ bool ssd = btrfs_test_opt(fs_info, SSD);
*empty_cluster = 0;
if (btrfs_mixed_space_info(space_info))
@@ -6625,11 +6655,11 @@ fetch_cluster_info(struct btrfs_root *root, struct btrfs_space_info *space_info,
if (ssd)
*empty_cluster = SZ_2M;
if (space_info->flags & BTRFS_BLOCK_GROUP_METADATA) {
- ret = &root->fs_info->meta_alloc_cluster;
+ ret = &fs_info->meta_alloc_cluster;
if (!ssd)
*empty_cluster = SZ_64K;
} else if ((space_info->flags & BTRFS_BLOCK_GROUP_DATA) && ssd) {
- ret = &root->fs_info->data_alloc_cluster;
+ ret = &fs_info->data_alloc_cluster;
}
return ret;
@@ -6761,7 +6791,7 @@ int btrfs_finish_extent_commit(struct btrfs_trans_handle *trans,
break;
}
- if (btrfs_test_opt(root->fs_info, DISCARD))
+ if (btrfs_test_opt(fs_info, DISCARD))
ret = btrfs_discard_extent(root, start,
end + 1 - start, NULL);
@@ -6847,8 +6877,7 @@ static int __btrfs_free_extent(struct btrfs_trans_handle *trans,
u64 bytenr = node->bytenr;
u64 num_bytes = node->num_bytes;
int last_ref = 0;
- bool skinny_metadata = btrfs_fs_incompat(root->fs_info,
- SKINNY_METADATA);
+ bool skinny_metadata = btrfs_fs_incompat(info, SKINNY_METADATA);
path = btrfs_alloc_path();
if (!path)
@@ -7048,7 +7077,7 @@ static int __btrfs_free_extent(struct btrfs_trans_handle *trans,
goto out;
}
}
- add_pinned_bytes(root->fs_info, -num_bytes, owner_objectid,
+ add_pinned_bytes(info, -num_bytes, owner_objectid,
root_objectid);
} else {
if (found_extent) {
@@ -7080,15 +7109,13 @@ static int __btrfs_free_extent(struct btrfs_trans_handle *trans,
}
}
- ret = add_to_free_space_tree(trans, root->fs_info, bytenr,
- num_bytes);
+ ret = add_to_free_space_tree(trans, info, bytenr, num_bytes);
if (ret) {
btrfs_abort_transaction(trans, ret);
goto out;
}
- ret = update_block_group(trans, root->fs_info, bytenr,
- num_bytes, 0);
+ ret = update_block_group(trans, info, bytenr, num_bytes, 0);
if (ret) {
btrfs_abort_transaction(trans, ret);
goto out;
@@ -7178,15 +7205,17 @@ void btrfs_free_tree_block(struct btrfs_trans_handle *trans,
struct extent_buffer *buf,
u64 parent, int last_ref)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
int pin = 1;
int ret;
if (root->root_key.objectid != BTRFS_TREE_LOG_OBJECTID) {
- ret = btrfs_add_delayed_tree_ref(root->fs_info, trans,
- buf->start, buf->len,
- parent, root->root_key.objectid,
- btrfs_header_level(buf),
- BTRFS_DROP_DELAYED_REF, NULL);
+ ret = btrfs_add_delayed_tree_ref(fs_info, trans,
+ buf->start, buf->len,
+ parent,
+ root->root_key.objectid,
+ btrfs_header_level(buf),
+ BTRFS_DROP_DELAYED_REF, NULL);
BUG_ON(ret); /* -ENOMEM */
}
@@ -7202,7 +7231,7 @@ void btrfs_free_tree_block(struct btrfs_trans_handle *trans,
goto out;
}
- cache = btrfs_lookup_block_group(root->fs_info, buf->start);
+ cache = btrfs_lookup_block_group(fs_info, buf->start);
if (btrfs_header_flag(buf, BTRFS_HEADER_FLAG_WRITTEN)) {
pin_down_extent(root, cache, buf->start, buf->len, 1);
@@ -7220,8 +7249,7 @@ void btrfs_free_tree_block(struct btrfs_trans_handle *trans,
}
out:
if (pin)
- add_pinned_bytes(root->fs_info, buf->len,
- btrfs_header_level(buf),
+ add_pinned_bytes(fs_info, buf->len, btrfs_header_level(buf),
root->root_key.objectid);
/*
@@ -7242,7 +7270,7 @@ int btrfs_free_extent(struct btrfs_trans_handle *trans, struct btrfs_root *root,
if (btrfs_is_testing(fs_info))
return 0;
- add_pinned_bytes(root->fs_info, num_bytes, owner, root_objectid);
+ add_pinned_bytes(fs_info, num_bytes, owner, root_objectid);
/*
* tree log blocks never actually go into the extent allocation
@@ -7442,8 +7470,9 @@ static noinline int find_free_extent(struct btrfs_root *orig_root,
u64 hint_byte, struct btrfs_key *ins,
u64 flags, int delalloc)
{
+ struct btrfs_fs_info *fs_info = orig_root->fs_info;
int ret = 0;
- struct btrfs_root *root = orig_root->fs_info->extent_root;
+ struct btrfs_root *root = fs_info->extent_root;
struct btrfs_free_cluster *last_ptr = NULL;
struct btrfs_block_group_cache *block_group = NULL;
u64 search_start = 0;
@@ -7459,16 +7488,16 @@ static noinline int find_free_extent(struct btrfs_root *orig_root,
bool orig_have_caching_bg = false;
bool full_search = false;
- WARN_ON(num_bytes < root->fs_info->sectorsize);
+ WARN_ON(num_bytes < fs_info->sectorsize);
ins->type = BTRFS_EXTENT_ITEM_KEY;
ins->objectid = 0;
ins->offset = 0;
trace_find_free_extent(orig_root, num_bytes, empty_size, flags);
- space_info = __find_space_info(root->fs_info, flags);
+ space_info = __find_space_info(fs_info, flags);
if (!space_info) {
- btrfs_err(root->fs_info, "No space info for %llu", flags);
+ btrfs_err(fs_info, "No space info for %llu", flags);
return -ENOSPC;
}
@@ -7515,8 +7544,7 @@ static noinline int find_free_extent(struct btrfs_root *orig_root,
search_start = max(search_start, first_logical_byte(root, 0));
search_start = max(search_start, hint_byte);
if (search_start == hint_byte) {
- block_group = btrfs_lookup_block_group(root->fs_info,
- search_start);
+ block_group = btrfs_lookup_block_group(fs_info, search_start);
/*
* we don't want to use the block group if it doesn't match our
* allocation bits, or if its not cached.
@@ -7769,7 +7797,7 @@ static noinline int find_free_extent(struct btrfs_root *orig_root,
goto loop;
}
checks:
- search_start = ALIGN(offset, root->fs_info->stripesize);
+ search_start = ALIGN(offset, fs_info->stripesize);
/* move on to the next group */
if (search_start + num_bytes >
@@ -7968,7 +7996,7 @@ int btrfs_reserve_extent(struct btrfs_root *root, u64 ram_bytes,
flags = btrfs_get_alloc_profile(root, is_data);
again:
- WARN_ON(num_bytes < root->fs_info->sectorsize);
+ WARN_ON(num_bytes < fs_info->sectorsize);
ret = find_free_extent(root, ram_bytes, num_bytes, empty_size,
hint_byte, ins, flags, delalloc);
if (!ret && !is_data) {
@@ -7977,7 +8005,7 @@ int btrfs_reserve_extent(struct btrfs_root *root, u64 ram_bytes,
if (!final_tried && ins->offset) {
num_bytes = min(num_bytes >> 1, ins->offset);
num_bytes = round_down(num_bytes,
- root->fs_info->sectorsize);
+ fs_info->sectorsize);
num_bytes = max(num_bytes, min_alloc_size);
ram_bytes = num_bytes;
if (num_bytes == min_alloc_size)
@@ -7987,7 +8015,7 @@ int btrfs_reserve_extent(struct btrfs_root *root, u64 ram_bytes,
struct btrfs_space_info *sinfo;
sinfo = __find_space_info(fs_info, flags);
- btrfs_err(root->fs_info,
+ btrfs_err(fs_info,
"allocation failed flags %llu, wanted %llu",
flags, num_bytes);
if (sinfo)
@@ -8002,20 +8030,21 @@ static int __btrfs_free_reserved_extent(struct btrfs_root *root,
u64 start, u64 len,
int pin, int delalloc)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_block_group_cache *cache;
int ret = 0;
- cache = btrfs_lookup_block_group(root->fs_info, start);
+ cache = btrfs_lookup_block_group(fs_info, start);
if (!cache) {
- btrfs_err(root->fs_info, "Unable to find block group for %llu",
- start);
+ btrfs_err(fs_info, "Unable to find block group for %llu",
+ start);
return -ENOSPC;
}
if (pin)
pin_down_extent(root, cache, start, len, 1);
else {
- if (btrfs_test_opt(root->fs_info, DISCARD))
+ if (btrfs_test_opt(fs_info, DISCARD))
ret = btrfs_discard_extent(root, start, len, NULL);
btrfs_add_free_space(cache, start, len);
btrfs_free_reserved_bytes(cache, len, delalloc);
@@ -8130,8 +8159,7 @@ static int alloc_reserved_tree_block(struct btrfs_trans_handle *trans,
struct extent_buffer *leaf;
u32 size = sizeof(*extent_item) + sizeof(*iref);
u64 num_bytes = ins->offset;
- bool skinny_metadata = btrfs_fs_incompat(root->fs_info,
- SKINNY_METADATA);
+ bool skinny_metadata = btrfs_fs_incompat(fs_info, SKINNY_METADATA);
if (!skinny_metadata)
size += sizeof(*block_info);
@@ -8139,7 +8167,7 @@ static int alloc_reserved_tree_block(struct btrfs_trans_handle *trans,
path = btrfs_alloc_path();
if (!path) {
btrfs_free_and_pin_reserved_extent(root, ins->objectid,
- root->fs_info->nodesize);
+ fs_info->nodesize);
return -ENOMEM;
}
@@ -8149,7 +8177,7 @@ static int alloc_reserved_tree_block(struct btrfs_trans_handle *trans,
if (ret) {
btrfs_free_path(path);
btrfs_free_and_pin_reserved_extent(root, ins->objectid,
- root->fs_info->nodesize);
+ fs_info->nodesize);
return ret;
}
@@ -8163,7 +8191,7 @@ static int alloc_reserved_tree_block(struct btrfs_trans_handle *trans,
if (skinny_metadata) {
iref = (struct btrfs_extent_inline_ref *)(extent_item + 1);
- num_bytes = root->fs_info->nodesize;
+ num_bytes = fs_info->nodesize;
} else {
block_info = (struct btrfs_tree_block_info *)(extent_item + 1);
btrfs_set_tree_block_key(leaf, block_info, key);
@@ -8199,7 +8227,7 @@ static int alloc_reserved_tree_block(struct btrfs_trans_handle *trans,
}
trace_btrfs_reserved_extent_alloc(root, ins->objectid,
- root->fs_info->nodesize);
+ fs_info->nodesize);
return ret;
}
@@ -8209,11 +8237,12 @@ int btrfs_alloc_reserved_file_extent(struct btrfs_trans_handle *trans,
u64 offset, u64 ram_bytes,
struct btrfs_key *ins)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
int ret;
BUG_ON(root_objectid == BTRFS_TREE_LOG_OBJECTID);
- ret = btrfs_add_delayed_data_ref(root->fs_info, trans, ins->objectid,
+ ret = btrfs_add_delayed_data_ref(fs_info, trans, ins->objectid,
ins->offset, 0,
root_objectid, owner, offset,
ram_bytes, BTRFS_ADD_DELAYED_EXTENT,
@@ -8231,6 +8260,7 @@ int btrfs_alloc_logged_file_extent(struct btrfs_trans_handle *trans,
u64 root_objectid, u64 owner, u64 offset,
struct btrfs_key *ins)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
int ret;
struct btrfs_block_group_cache *block_group;
struct btrfs_space_info *space_info;
@@ -8239,13 +8269,13 @@ int btrfs_alloc_logged_file_extent(struct btrfs_trans_handle *trans,
* Mixed block groups will exclude before processing the log so we only
* need to do the exclude dance if this fs isn't mixed.
*/
- if (!btrfs_fs_incompat(root->fs_info, MIXED_GROUPS)) {
+ if (!btrfs_fs_incompat(fs_info, MIXED_GROUPS)) {
ret = __exclude_logged_extent(root, ins->objectid, ins->offset);
if (ret)
return ret;
}
- block_group = btrfs_lookup_block_group(root->fs_info, ins->objectid);
+ block_group = btrfs_lookup_block_group(fs_info, ins->objectid);
if (!block_group)
return -EINVAL;
@@ -8267,6 +8297,7 @@ static struct extent_buffer *
btrfs_init_new_buffer(struct btrfs_trans_handle *trans, struct btrfs_root *root,
u64 bytenr, int level)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct extent_buffer *buf;
buf = btrfs_find_create_tree_block(root, bytenr);
@@ -8276,7 +8307,7 @@ btrfs_init_new_buffer(struct btrfs_trans_handle *trans, struct btrfs_root *root,
btrfs_set_header_generation(buf, trans->transid);
btrfs_set_buffer_lockdep_class(root->root_key.objectid, buf, level);
btrfs_tree_lock(buf);
- clean_tree_block(trans, root->fs_info, buf);
+ clean_tree_block(trans, fs_info, buf);
clear_bit(EXTENT_BUFFER_STALE, &buf->bflags);
btrfs_set_lock_blocking(buf);
@@ -8308,8 +8339,9 @@ static struct btrfs_block_rsv *
use_block_rsv(struct btrfs_trans_handle *trans,
struct btrfs_root *root, u32 blocksize)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_block_rsv *block_rsv;
- struct btrfs_block_rsv *global_rsv = &root->fs_info->global_block_rsv;
+ struct btrfs_block_rsv *global_rsv = &fs_info->global_block_rsv;
int ret;
bool global_updated = false;
@@ -8327,11 +8359,11 @@ use_block_rsv(struct btrfs_trans_handle *trans,
if (block_rsv->type == BTRFS_BLOCK_RSV_GLOBAL && !global_updated) {
global_updated = true;
- update_global_block_rsv(root->fs_info);
+ update_global_block_rsv(fs_info);
goto again;
}
- if (btrfs_test_opt(root->fs_info, ENOSPC_DEBUG)) {
+ if (btrfs_test_opt(fs_info, ENOSPC_DEBUG)) {
static DEFINE_RATELIMIT_STATE(_rs,
DEFAULT_RATELIMIT_INTERVAL * 10,
/*DEFAULT_RATELIMIT_BURST*/ 1);
@@ -8375,18 +8407,18 @@ struct extent_buffer *btrfs_alloc_tree_block(struct btrfs_trans_handle *trans,
struct btrfs_disk_key *key, int level,
u64 hint, u64 empty_size)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_key ins;
struct btrfs_block_rsv *block_rsv;
struct extent_buffer *buf;
struct btrfs_delayed_extent_op *extent_op;
u64 flags = 0;
int ret;
- u32 blocksize = root->fs_info->nodesize;
- bool skinny_metadata = btrfs_fs_incompat(root->fs_info,
- SKINNY_METADATA);
+ u32 blocksize = fs_info->nodesize;
+ bool skinny_metadata = btrfs_fs_incompat(fs_info, SKINNY_METADATA);
#ifdef CONFIG_BTRFS_FS_RUN_SANITY_TESTS
- if (btrfs_is_testing(root->fs_info)) {
+ if (btrfs_is_testing(fs_info)) {
buf = btrfs_init_new_buffer(trans, root, root->alloc_bytenr,
level);
if (!IS_ERR(buf))
@@ -8433,7 +8465,7 @@ struct extent_buffer *btrfs_alloc_tree_block(struct btrfs_trans_handle *trans,
extent_op->is_data = false;
extent_op->level = level;
- ret = btrfs_add_delayed_tree_ref(root->fs_info, trans,
+ ret = btrfs_add_delayed_tree_ref(fs_info, trans,
ins.objectid, ins.offset,
parent, root_objectid, level,
BTRFS_ADD_DELAYED_EXTENT,
@@ -8450,7 +8482,7 @@ struct extent_buffer *btrfs_alloc_tree_block(struct btrfs_trans_handle *trans,
out_free_reserved:
btrfs_free_reserved_extent(root, ins.objectid, ins.offset, 0);
out_unuse:
- unuse_block_rsv(root->fs_info, block_rsv, blocksize);
+ unuse_block_rsv(fs_info, block_rsv, blocksize);
return ERR_PTR(ret);
}
@@ -8476,6 +8508,7 @@ static noinline void reada_walk_down(struct btrfs_trans_handle *trans,
struct walk_control *wc,
struct btrfs_path *path)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
u64 bytenr;
u64 generation;
u64 refs;
@@ -8493,7 +8526,7 @@ static noinline void reada_walk_down(struct btrfs_trans_handle *trans,
} else {
wc->reada_count = wc->reada_count * 3 / 2;
wc->reada_count = min_t(int, wc->reada_count,
- BTRFS_NODEPTRS_PER_BLOCK(root->fs_info));
+ BTRFS_NODEPTRS_PER_BLOCK(fs_info));
}
eb = path->nodes[wc->level];
@@ -8644,6 +8677,7 @@ static noinline int do_walk_down(struct btrfs_trans_handle *trans,
struct btrfs_path *path,
struct walk_control *wc, int *lookup_info)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
u64 bytenr;
u64 generation;
u64 parent;
@@ -8669,9 +8703,9 @@ static noinline int do_walk_down(struct btrfs_trans_handle *trans,
}
bytenr = btrfs_node_blockptr(path->nodes[level], path->slots[level]);
- blocksize = root->fs_info->nodesize;
+ blocksize = fs_info->nodesize;
- next = find_extent_buffer(root->fs_info, bytenr);
+ next = find_extent_buffer(fs_info, bytenr);
if (!next) {
next = btrfs_find_create_tree_block(root, bytenr);
if (IS_ERR(next))
@@ -8691,7 +8725,7 @@ static noinline int do_walk_down(struct btrfs_trans_handle *trans,
goto out_unlock;
if (unlikely(wc->refs[level - 1] == 0)) {
- btrfs_err(root->fs_info, "Missing references.");
+ btrfs_err(fs_info, "Missing references.");
ret = -EIO;
goto out_unlock;
}
@@ -8781,7 +8815,7 @@ static noinline int do_walk_down(struct btrfs_trans_handle *trans,
ret = btrfs_qgroup_trace_subtree(trans, root, next,
generation, level - 1);
if (ret) {
- btrfs_err_rl(root->fs_info,
+ btrfs_err_rl(fs_info,
"Error %d accounting shared subtree. Quota is out of sync, rescan required.",
ret);
}
@@ -8819,6 +8853,7 @@ static noinline int walk_up_proc(struct btrfs_trans_handle *trans,
struct btrfs_path *path,
struct walk_control *wc)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
int ret;
int level = wc->level;
struct extent_buffer *eb = path->nodes[level];
@@ -8878,7 +8913,7 @@ static noinline int walk_up_proc(struct btrfs_trans_handle *trans,
BUG_ON(ret); /* -ENOMEM */
ret = btrfs_qgroup_trace_leaf_items(trans, root, eb);
if (ret) {
- btrfs_err_rl(root->fs_info,
+ btrfs_err_rl(fs_info,
"error %d accounting leaf items. Quota is out of sync, rescan required.",
ret);
}
@@ -8890,7 +8925,7 @@ static noinline int walk_up_proc(struct btrfs_trans_handle *trans,
btrfs_set_lock_blocking(eb);
path->locks[level] = BTRFS_WRITE_LOCK_BLOCKING;
}
- clean_tree_block(trans, root->fs_info, eb);
+ clean_tree_block(trans, fs_info, eb);
}
if (eb == root->node) {
@@ -9094,7 +9129,7 @@ int btrfs_drop_snapshot(struct btrfs_root *root,
wc->update_ref = update_ref;
wc->keep_locks = 0;
wc->for_reloc = for_reloc;
- wc->reada_count = BTRFS_NODEPTRS_PER_BLOCK(root->fs_info);
+ wc->reada_count = BTRFS_NODEPTRS_PER_BLOCK(fs_info);
while (1) {
@@ -9219,6 +9254,7 @@ int btrfs_drop_subtree(struct btrfs_trans_handle *trans,
struct extent_buffer *node,
struct extent_buffer *parent)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_path *path;
struct walk_control *wc;
int level;
@@ -9258,7 +9294,7 @@ int btrfs_drop_subtree(struct btrfs_trans_handle *trans,
wc->update_ref = 0;
wc->keep_locks = 1;
wc->for_reloc = 1;
- wc->reada_count = BTRFS_NODEPTRS_PER_BLOCK(root->fs_info);
+ wc->reada_count = BTRFS_NODEPTRS_PER_BLOCK(fs_info);
while (1) {
wret = walk_down_tree(trans, root, path, wc);
@@ -9377,6 +9413,7 @@ int btrfs_inc_block_group_ro(struct btrfs_root *root,
struct btrfs_block_group_cache *cache)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_trans_handle *trans;
u64 alloc_flags;
int ret;
@@ -9391,11 +9428,11 @@ int btrfs_inc_block_group_ro(struct btrfs_root *root,
* block groups cache has started writing. If it already started,
* back off and let this transaction commit
*/
- mutex_lock(&root->fs_info->ro_block_group_mutex);
+ mutex_lock(&fs_info->ro_block_group_mutex);
if (test_bit(BTRFS_TRANS_DIRTY_BG_RUN, &trans->transaction->flags)) {
u64 transid = trans->transid;
- mutex_unlock(&root->fs_info->ro_block_group_mutex);
+ mutex_unlock(&fs_info->ro_block_group_mutex);
btrfs_end_transaction(trans, root);
ret = btrfs_wait_for_commit(root, transid);
@@ -9408,7 +9445,7 @@ int btrfs_inc_block_group_ro(struct btrfs_root *root,
* if we are changing raid levels, try to allocate a corresponding
* block group with the new raid level.
*/
- alloc_flags = update_block_group_flags(root->fs_info, cache->flags);
+ alloc_flags = update_block_group_flags(fs_info, cache->flags);
if (alloc_flags != cache->flags) {
ret = do_chunk_alloc(trans, root, alloc_flags,
CHUNK_ALLOC_FORCE);
@@ -9434,13 +9471,12 @@ int btrfs_inc_block_group_ro(struct btrfs_root *root,
ret = inc_block_group_ro(cache, 0);
out:
if (cache->flags & BTRFS_BLOCK_GROUP_SYSTEM) {
- alloc_flags = update_block_group_flags(root->fs_info,
- cache->flags);
- lock_chunks(root->fs_info);
+ alloc_flags = update_block_group_flags(fs_info, cache->flags);
+ lock_chunks(fs_info);
check_system_chunk(trans, root, alloc_flags);
- unlock_chunks(root->fs_info);
+ unlock_chunks(fs_info);
}
- mutex_unlock(&root->fs_info->ro_block_group_mutex);
+ mutex_unlock(&fs_info->ro_block_group_mutex);
btrfs_end_transaction(trans, root);
return ret;
@@ -9527,7 +9563,7 @@ int btrfs_can_relocate(struct btrfs_fs_info *fs_info, u64 bytenr)
struct btrfs_root *root = fs_info->extent_root;
struct btrfs_block_group_cache *block_group;
struct btrfs_space_info *space_info;
- struct btrfs_fs_devices *fs_devices = root->fs_info->fs_devices;
+ struct btrfs_fs_devices *fs_devices = fs_info->fs_devices;
struct btrfs_device *device;
struct btrfs_trans_handle *trans;
u64 min_free;
@@ -9539,14 +9575,14 @@ int btrfs_can_relocate(struct btrfs_fs_info *fs_info, u64 bytenr)
int full = 0;
int ret = 0;
- debug = btrfs_test_opt(root->fs_info, ENOSPC_DEBUG);
+ debug = btrfs_test_opt(fs_info, ENOSPC_DEBUG);
- block_group = btrfs_lookup_block_group(root->fs_info, bytenr);
+ block_group = btrfs_lookup_block_group(fs_info, bytenr);
/* odd, couldn't find the block group, leave it alone */
if (!block_group) {
if (debug)
- btrfs_warn(root->fs_info,
+ btrfs_warn(fs_info,
"can't find block group for bytenr %llu",
bytenr);
return -1;
@@ -9596,7 +9632,7 @@ int btrfs_can_relocate(struct btrfs_fs_info *fs_info, u64 bytenr)
* 3: raid0
* 4: single
*/
- target = get_restripe_target(root->fs_info, block_group->flags);
+ target = get_restripe_target(fs_info, block_group->flags);
if (target) {
index = __get_raid_index(extended_to_chunk(target));
} else {
@@ -9606,9 +9642,9 @@ int btrfs_can_relocate(struct btrfs_fs_info *fs_info, u64 bytenr)
*/
if (full) {
if (debug)
- btrfs_warn(root->fs_info,
- "no space to alloc new chunk for block group %llu",
- block_group->key.objectid);
+ btrfs_warn(fs_info,
+ "no space to alloc new chunk for block group %llu",
+ block_group->key.objectid);
goto out;
}
@@ -9636,7 +9672,7 @@ int btrfs_can_relocate(struct btrfs_fs_info *fs_info, u64 bytenr)
goto out;
}
- mutex_lock(&root->fs_info->chunk_mutex);
+ mutex_lock(&fs_info->chunk_mutex);
list_for_each_entry(device, &fs_devices->alloc_list, dev_alloc_list) {
u64 dev_offset;
@@ -9658,10 +9694,10 @@ int btrfs_can_relocate(struct btrfs_fs_info *fs_info, u64 bytenr)
}
}
if (debug && ret == -1)
- btrfs_warn(root->fs_info,
- "no space to allocate a new chunk for block group %llu",
- block_group->key.objectid);
- mutex_unlock(&root->fs_info->chunk_mutex);
+ btrfs_warn(fs_info,
+ "no space to allocate a new chunk for block group %llu",
+ block_group->key.objectid);
+ mutex_unlock(&fs_info->chunk_mutex);
btrfs_end_transaction(trans, root);
out:
btrfs_put_block_group(block_group);
@@ -9706,7 +9742,7 @@ static int find_first_block_group(struct btrfs_fs_info *fs_info,
found_key.offset);
read_unlock(&em_tree->lock);
if (!em) {
- btrfs_err(root->fs_info,
+ btrfs_err(fs_info,
"logical %llu len %llu found bg but no related chunk",
found_key.objectid, found_key.offset);
ret = -ENOENT;
@@ -9898,6 +9934,7 @@ static void __link_block_group(struct btrfs_space_info *space_info,
static struct btrfs_block_group_cache *
btrfs_create_block_group_cache(struct btrfs_root *root, u64 start, u64 size)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_block_group_cache *cache;
cache = kzalloc(sizeof(*cache), GFP_NOFS);
@@ -9915,11 +9952,10 @@ btrfs_create_block_group_cache(struct btrfs_root *root, u64 start, u64 size)
cache->key.offset = size;
cache->key.type = BTRFS_BLOCK_GROUP_ITEM_KEY;
- cache->sectorsize = root->fs_info->sectorsize;
- cache->fs_info = root->fs_info;
+ cache->sectorsize = fs_info->sectorsize;
+ cache->fs_info = fs_info;
cache->full_stripe_len = btrfs_full_stripe_len(root,
- &root->fs_info->mapping_tree,
- start);
+ &fs_info->mapping_tree, start);
set_free_space_tree_thresholds(cache);
atomic_set(&cache->count, 1);
@@ -9964,11 +10000,11 @@ int btrfs_read_block_groups(struct btrfs_fs_info *info)
return -ENOMEM;
path->reada = READA_FORWARD;
- cache_gen = btrfs_super_cache_generation(root->fs_info->super_copy);
- if (btrfs_test_opt(root->fs_info, SPACE_CACHE) &&
- btrfs_super_generation(root->fs_info->super_copy) != cache_gen)
+ cache_gen = btrfs_super_cache_generation(info->super_copy);
+ if (btrfs_test_opt(info, SPACE_CACHE) &&
+ btrfs_super_generation(info->super_copy) != cache_gen)
need_clear = 1;
- if (btrfs_test_opt(root->fs_info, CLEAR_CACHE))
+ if (btrfs_test_opt(info, CLEAR_CACHE))
need_clear = 1;
while (1) {
@@ -9999,7 +10035,7 @@ int btrfs_read_block_groups(struct btrfs_fs_info *info)
* b) Setting 'dirty flag' makes sure that we flush
* the new space cache info onto disk.
*/
- if (btrfs_test_opt(root->fs_info, SPACE_CACHE))
+ if (btrfs_test_opt(info, SPACE_CACHE))
cache->disk_cache_state = BTRFS_DC_CLEAR;
}
@@ -10050,21 +10086,21 @@ int btrfs_read_block_groups(struct btrfs_fs_info *info)
} else if (btrfs_block_group_used(&cache->item) == 0) {
cache->last_byte_to_unpin = (u64)-1;
cache->cached = BTRFS_CACHE_FINISHED;
- add_new_free_space(cache, root->fs_info,
+ add_new_free_space(cache, info,
found_key.objectid,
found_key.objectid +
found_key.offset);
free_excluded_extents(root, cache);
}
- ret = btrfs_add_block_group_cache(root->fs_info, cache);
+ ret = btrfs_add_block_group_cache(info, cache);
if (ret) {
btrfs_remove_free_space_cache(cache);
btrfs_put_block_group(cache);
goto error;
}
- trace_btrfs_add_block_group(root->fs_info, cache, 0);
+ trace_btrfs_add_block_group(info, cache, 0);
ret = update_space_info(info, cache->flags, found_key.offset,
btrfs_block_group_used(&cache->item),
cache->bytes_super, &space_info);
@@ -10083,7 +10119,7 @@ int btrfs_read_block_groups(struct btrfs_fs_info *info)
__link_block_group(space_info, cache);
- set_avail_alloc_bits(root->fs_info, cache->flags);
+ set_avail_alloc_bits(info, cache->flags);
if (btrfs_chunk_readonly(root, cache->key.objectid)) {
inc_block_group_ro(cache, 1);
} else if (btrfs_block_group_used(&cache->item) == 0) {
@@ -10098,7 +10134,7 @@ int btrfs_read_block_groups(struct btrfs_fs_info *info)
}
}
- list_for_each_entry_rcu(space_info, &root->fs_info->space_info, list) {
+ list_for_each_entry_rcu(space_info, &info->space_info, list) {
if (!(get_alloc_profile(root, space_info->flags) &
(BTRFS_BLOCK_GROUP_RAID10 |
BTRFS_BLOCK_GROUP_RAID1 |
@@ -10130,8 +10166,9 @@ int btrfs_read_block_groups(struct btrfs_fs_info *info)
void btrfs_create_pending_block_groups(struct btrfs_trans_handle *trans,
struct btrfs_root *root)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_block_group_cache *block_group, *tmp;
- struct btrfs_root *extent_root = root->fs_info->extent_root;
+ struct btrfs_root *extent_root = fs_info->extent_root;
struct btrfs_block_group_item item;
struct btrfs_key key;
int ret = 0;
@@ -10151,11 +10188,11 @@ void btrfs_create_pending_block_groups(struct btrfs_trans_handle *trans,
sizeof(item));
if (ret)
btrfs_abort_transaction(trans, ret);
- ret = btrfs_finish_chunk_alloc(trans, extent_root->fs_info,
- key.objectid, key.offset);
+ ret = btrfs_finish_chunk_alloc(trans, fs_info, key.objectid,
+ key.offset);
if (ret)
btrfs_abort_transaction(trans, ret);
- add_block_group_free_space(trans, root->fs_info, block_group);
+ add_block_group_free_space(trans, fs_info, block_group);
/* already aborted the transaction if it failed. */
next:
list_del_init(&block_group->bg_list);
@@ -10168,12 +10205,11 @@ int btrfs_make_block_group(struct btrfs_trans_handle *trans,
u64 type, u64 chunk_objectid, u64 chunk_offset,
u64 size)
{
- int ret;
- struct btrfs_root *extent_root;
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_block_group_cache *cache;
- extent_root = root->fs_info->extent_root;
+ int ret;
- btrfs_set_log_full_commit(root->fs_info, trans);
+ btrfs_set_log_full_commit(fs_info, trans);
cache = btrfs_create_block_group_cache(root, chunk_offset, size);
if (!cache)
@@ -10198,8 +10234,7 @@ int btrfs_make_block_group(struct btrfs_trans_handle *trans,
return ret;
}
- add_new_free_space(cache, root->fs_info, chunk_offset,
- chunk_offset + size);
+ add_new_free_space(cache, fs_info, chunk_offset, chunk_offset + size);
free_excluded_extents(root, cache);
@@ -10216,7 +10251,7 @@ int btrfs_make_block_group(struct btrfs_trans_handle *trans,
* assigned to our block group, but don't update its counters just yet.
* We want our bg to be added to the rbtree with its ->space_info set.
*/
- ret = update_space_info(root->fs_info, cache->flags, 0, 0, 0,
+ ret = update_space_info(fs_info, cache->flags, 0, 0, 0,
&cache->space_info);
if (ret) {
btrfs_remove_free_space_cache(cache);
@@ -10224,7 +10259,7 @@ int btrfs_make_block_group(struct btrfs_trans_handle *trans,
return ret;
}
- ret = btrfs_add_block_group_cache(root->fs_info, cache);
+ ret = btrfs_add_block_group_cache(fs_info, cache);
if (ret) {
btrfs_remove_free_space_cache(cache);
btrfs_put_block_group(cache);
@@ -10235,26 +10270,26 @@ int btrfs_make_block_group(struct btrfs_trans_handle *trans,
* Now that our block group has its ->space_info set and is inserted in
* the rbtree, update the space info's counters.
*/
- trace_btrfs_add_block_group(root->fs_info, cache, 1);
- ret = update_space_info(root->fs_info, cache->flags, size, bytes_used,
+ trace_btrfs_add_block_group(fs_info, cache, 1);
+ ret = update_space_info(fs_info, cache->flags, size, bytes_used,
cache->bytes_super, &cache->space_info);
if (ret) {
btrfs_remove_free_space_cache(cache);
- spin_lock(&root->fs_info->block_group_cache_lock);
+ spin_lock(&fs_info->block_group_cache_lock);
rb_erase(&cache->cache_node,
- &root->fs_info->block_group_cache_tree);
+ &fs_info->block_group_cache_tree);
RB_CLEAR_NODE(&cache->cache_node);
- spin_unlock(&root->fs_info->block_group_cache_lock);
+ spin_unlock(&fs_info->block_group_cache_lock);
btrfs_put_block_group(cache);
return ret;
}
- update_global_block_rsv(root->fs_info);
+ update_global_block_rsv(fs_info);
__link_block_group(cache->space_info, cache);
list_add_tail(&cache->bg_list, &trans->new_bgs);
- set_avail_alloc_bits(extent_root->fs_info, type);
+ set_avail_alloc_bits(fs_info, type);
return 0;
}
@@ -10281,7 +10316,7 @@ int btrfs_remove_block_group(struct btrfs_trans_handle *trans,
struct btrfs_path *path;
struct btrfs_block_group_cache *block_group;
struct btrfs_free_cluster *cluster;
- struct btrfs_root *tree_root = root->fs_info->tree_root;
+ struct btrfs_root *tree_root = fs_info->tree_root;
struct btrfs_key key;
struct inode *inode;
struct kobject *kobj = NULL;
@@ -10311,7 +10346,7 @@ int btrfs_remove_block_group(struct btrfs_trans_handle *trans,
factor = 1;
/* make sure this block group isn't part of an allocation cluster */
- cluster = &root->fs_info->data_alloc_cluster;
+ cluster = &fs_info->data_alloc_cluster;
spin_lock(&cluster->refill_lock);
btrfs_return_cluster_to_free_space(block_group, cluster);
spin_unlock(&cluster->refill_lock);
@@ -10320,7 +10355,7 @@ int btrfs_remove_block_group(struct btrfs_trans_handle *trans,
* make sure this block group isn't part of a metadata
* allocation cluster
*/
- cluster = &root->fs_info->meta_alloc_cluster;
+ cluster = &fs_info->meta_alloc_cluster;
spin_lock(&cluster->refill_lock);
btrfs_return_cluster_to_free_space(block_group, cluster);
spin_unlock(&cluster->refill_lock);
@@ -10400,14 +10435,14 @@ int btrfs_remove_block_group(struct btrfs_trans_handle *trans,
btrfs_release_path(path);
}
- spin_lock(&root->fs_info->block_group_cache_lock);
+ spin_lock(&fs_info->block_group_cache_lock);
rb_erase(&block_group->cache_node,
- &root->fs_info->block_group_cache_tree);
+ &fs_info->block_group_cache_tree);
RB_CLEAR_NODE(&block_group->cache_node);
- if (root->fs_info->first_logical_byte == block_group->key.objectid)
- root->fs_info->first_logical_byte = (u64)-1;
- spin_unlock(&root->fs_info->block_group_cache_lock);
+ if (fs_info->first_logical_byte == block_group->key.objectid)
+ fs_info->first_logical_byte = (u64)-1;
+ spin_unlock(&fs_info->block_group_cache_lock);
down_write(&block_group->space_info->groups_sem);
/*
@@ -10418,7 +10453,7 @@ int btrfs_remove_block_group(struct btrfs_trans_handle *trans,
if (list_empty(&block_group->space_info->block_groups[index])) {
kobj = block_group->space_info->block_group_kobjs[index];
block_group->space_info->block_group_kobjs[index] = NULL;
- clear_avail_alloc_bits(root->fs_info, block_group->flags);
+ clear_avail_alloc_bits(fs_info, block_group->flags);
}
up_write(&block_group->space_info->groups_sem);
if (kobj) {
@@ -10431,12 +10466,12 @@ int btrfs_remove_block_group(struct btrfs_trans_handle *trans,
if (block_group->cached == BTRFS_CACHE_STARTED)
wait_block_group_cache_done(block_group);
if (block_group->has_caching_ctl) {
- down_write(&root->fs_info->commit_root_sem);
+ down_write(&fs_info->commit_root_sem);
if (!caching_ctl) {
struct btrfs_caching_control *ctl;
list_for_each_entry(ctl,
- &root->fs_info->caching_block_groups, list)
+ &fs_info->caching_block_groups, list)
if (ctl->block_group == block_group) {
caching_ctl = ctl;
atomic_inc(&caching_ctl->count);
@@ -10445,7 +10480,7 @@ int btrfs_remove_block_group(struct btrfs_trans_handle *trans,
}
if (caching_ctl)
list_del_init(&caching_ctl->list);
- up_write(&root->fs_info->commit_root_sem);
+ up_write(&fs_info->commit_root_sem);
if (caching_ctl) {
/* Once for the caching bgs list and once for us. */
put_caching_control(caching_ctl);
@@ -10466,7 +10501,7 @@ int btrfs_remove_block_group(struct btrfs_trans_handle *trans,
spin_lock(&block_group->space_info->lock);
list_del_init(&block_group->ro_list);
- if (btrfs_test_opt(root->fs_info, ENOSPC_DEBUG)) {
+ if (btrfs_test_opt(fs_info, ENOSPC_DEBUG)) {
WARN_ON(block_group->space_info->total_bytes
< block_group->key.offset);
WARN_ON(block_group->space_info->bytes_readonly
@@ -10482,7 +10517,7 @@ int btrfs_remove_block_group(struct btrfs_trans_handle *trans,
memcpy(&key, &block_group->key, sizeof(key));
- lock_chunks(root->fs_info);
+ lock_chunks(fs_info);
if (!list_empty(&em->list)) {
/* We're in the transaction->pending_chunks list. */
free_extent_map(em);
@@ -10530,14 +10565,14 @@ int btrfs_remove_block_group(struct btrfs_trans_handle *trans,
* sees the em, either in the pending_chunks list or in the
* pinned_chunks list.
*/
- list_move_tail(&em->list, &root->fs_info->pinned_chunks);
+ list_move_tail(&em->list, &fs_info->pinned_chunks);
}
spin_unlock(&block_group->lock);
if (remove_em) {
struct extent_map_tree *em_tree;
- em_tree = &root->fs_info->mapping_tree.map_tree;
+ em_tree = &fs_info->mapping_tree.map_tree;
write_lock(&em_tree->lock);
/*
* The em might be in the pending_chunks list, so make sure the
@@ -10550,9 +10585,9 @@ int btrfs_remove_block_group(struct btrfs_trans_handle *trans,
free_extent_map(em);
}
- unlock_chunks(root->fs_info);
+ unlock_chunks(fs_info);
- ret = remove_block_group_free_space(trans, root->fs_info, block_group);
+ ret = remove_block_group_free_space(trans, fs_info, block_group);
if (ret)
goto out;
@@ -10734,7 +10769,7 @@ void btrfs_delete_unused_bgs(struct btrfs_fs_info *fs_info)
spin_unlock(&space_info->lock);
/* DISCARD can flip during remount */
- trimming = btrfs_test_opt(root->fs_info, DISCARD);
+ trimming = btrfs_test_opt(fs_info, DISCARD);
/* Implicit trim during transaction commit. */
if (trimming)
@@ -10970,8 +11005,8 @@ int btrfs_trim_fs(struct btrfs_root *root, struct fstrim_range *range)
cache = next_block_group(fs_info->tree_root, cache);
}
- mutex_lock(&root->fs_info->fs_devices->device_list_mutex);
- devices = &root->fs_info->fs_devices->alloc_list;
+ mutex_lock(&fs_info->fs_devices->device_list_mutex);
+ devices = &fs_info->fs_devices->alloc_list;
list_for_each_entry(device, devices, dev_alloc_list) {
ret = btrfs_trim_free_extents(device, range->minlen,
&group_trimmed);
@@ -10980,7 +11015,7 @@ int btrfs_trim_fs(struct btrfs_root *root, struct fstrim_range *range)
trimmed += group_trimmed;
}
- mutex_unlock(&root->fs_info->fs_devices->device_list_mutex);
+ mutex_unlock(&fs_info->fs_devices->device_list_mutex);
range->len = trimmed;
return ret;
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index 3747af6..8df72de 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -2070,17 +2070,18 @@ int repair_io_failure(struct inode *inode, u64 start, u64 length, u64 logical,
int repair_eb_io_failure(struct btrfs_root *root, struct extent_buffer *eb,
int mirror_num)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
u64 start = eb->start;
unsigned long i, num_pages = num_extent_pages(eb->start, eb->len);
int ret = 0;
- if (root->fs_info->sb->s_flags & MS_RDONLY)
+ if (fs_info->sb->s_flags & MS_RDONLY)
return -EROFS;
for (i = 0; i < num_pages; i++) {
struct page *p = eb->pages[i];
- ret = repair_io_failure(root->fs_info->btree_inode, start,
+ ret = repair_io_failure(fs_info->btree_inode, start,
PAGE_SIZE, start, p,
start - page_offset(p), mirror_num);
if (ret)
@@ -2341,6 +2342,7 @@ struct bio *btrfs_create_repair_bio(struct inode *inode, struct bio *failed_bio,
struct page *page, int pg_offset, int icsum,
bio_end_io_t *endio_func, void *data)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct bio *bio;
struct btrfs_io_bio *btrfs_failed_bio;
struct btrfs_io_bio *btrfs_bio;
@@ -2351,13 +2353,12 @@ struct bio *btrfs_create_repair_bio(struct inode *inode, struct bio *failed_bio,
bio->bi_end_io = endio_func;
bio->bi_iter.bi_sector = failrec->logical >> 9;
- bio->bi_bdev = BTRFS_I(inode)->root->fs_info->fs_devices->latest_bdev;
+ bio->bi_bdev = fs_info->fs_devices->latest_bdev;
bio->bi_iter.bi_size = 0;
bio->bi_private = data;
btrfs_failed_bio = btrfs_io_bio(failed_bio);
if (btrfs_failed_bio->csum) {
- struct btrfs_fs_info *fs_info = BTRFS_I(inode)->root->fs_info;
u16 csum_size = btrfs_super_csum_size(fs_info->super_copy);
btrfs_bio = btrfs_io_bio(bio);
@@ -2476,6 +2477,8 @@ static void end_bio_extent_writepage(struct bio *bio)
bio_for_each_segment_all(bvec, bio, i) {
struct page *page = bvec->bv_page;
+ struct inode *inode = page->mapping->host;
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
/* We always issue full-page reads, but if some block
* in a page fails to read, blk_update_request() will
@@ -2484,11 +2487,11 @@ static void end_bio_extent_writepage(struct bio *bio)
* if they don't add up to a full page. */
if (bvec->bv_offset || bvec->bv_len != PAGE_SIZE) {
if (bvec->bv_offset + bvec->bv_len != PAGE_SIZE)
- btrfs_err(BTRFS_I(page->mapping->host)->root->fs_info,
+ btrfs_err(fs_info,
"partial page write in btrfs with offset %u and length %u",
bvec->bv_offset, bvec->bv_len);
else
- btrfs_info(BTRFS_I(page->mapping->host)->root->fs_info,
+ btrfs_info(fs_info,
"incomplete page write in btrfs with offset %u and length %u",
bvec->bv_offset, bvec->bv_len);
}
@@ -5789,6 +5792,7 @@ static void copy_pages(struct page *dst_page, struct page *src_page,
void memcpy_extent_buffer(struct extent_buffer *dst, unsigned long dst_offset,
unsigned long src_offset, unsigned long len)
{
+ struct btrfs_fs_info *fs_info = dst->fs_info;
size_t cur;
size_t dst_off_in_page;
size_t src_off_in_page;
@@ -5797,13 +5801,13 @@ void memcpy_extent_buffer(struct extent_buffer *dst, unsigned long dst_offset,
unsigned long src_i;
if (src_offset + len > dst->len) {
- btrfs_err(dst->fs_info,
+ btrfs_err(fs_info,
"memmove bogus src_offset %lu move len %lu dst len %lu",
src_offset, len, dst->len);
BUG_ON(1);
}
if (dst_offset + len > dst->len) {
- btrfs_err(dst->fs_info,
+ btrfs_err(fs_info,
"memmove bogus dst_offset %lu move len %lu dst len %lu",
dst_offset, len, dst->len);
BUG_ON(1);
@@ -5835,6 +5839,7 @@ void memcpy_extent_buffer(struct extent_buffer *dst, unsigned long dst_offset,
void memmove_extent_buffer(struct extent_buffer *dst, unsigned long dst_offset,
unsigned long src_offset, unsigned long len)
{
+ struct btrfs_fs_info *fs_info = dst->fs_info;
size_t cur;
size_t dst_off_in_page;
size_t src_off_in_page;
@@ -5845,13 +5850,13 @@ void memmove_extent_buffer(struct extent_buffer *dst, unsigned long dst_offset,
unsigned long src_i;
if (src_offset + len > dst->len) {
- btrfs_err(dst->fs_info,
+ btrfs_err(fs_info,
"memmove bogus src_offset %lu move len %lu len %lu",
src_offset, len, dst->len);
BUG_ON(1);
}
if (dst_offset + len > dst->len) {
- btrfs_err(dst->fs_info,
+ btrfs_err(fs_info,
"memmove bogus dst_offset %lu move len %lu len %lu",
dst_offset, len, dst->len);
BUG_ON(1);
diff --git a/fs/btrfs/file-item.c b/fs/btrfs/file-item.c
index 5349e8e..672a3655 100644
--- a/fs/btrfs/file-item.c
+++ b/fs/btrfs/file-item.c
@@ -90,13 +90,14 @@ btrfs_lookup_csum(struct btrfs_trans_handle *trans,
struct btrfs_path *path,
u64 bytenr, int cow)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
int ret;
struct btrfs_key file_key;
struct btrfs_key found_key;
struct btrfs_csum_item *item;
struct extent_buffer *leaf;
u64 csum_offset = 0;
- u16 csum_size = btrfs_super_csum_size(root->fs_info->super_copy);
+ u16 csum_size = btrfs_super_csum_size(fs_info->super_copy);
int csums_in_item;
file_key.objectid = BTRFS_EXTENT_CSUM_OBJECTID;
@@ -116,7 +117,7 @@ btrfs_lookup_csum(struct btrfs_trans_handle *trans,
goto fail;
csum_offset = (bytenr - found_key.offset) >>
- root->fs_info->sb->s_blocksize_bits;
+ fs_info->sb->s_blocksize_bits;
csums_in_item = btrfs_item_size_nr(leaf, path->slots[0]);
csums_in_item /= csum_size;
@@ -163,6 +164,7 @@ static int __btrfs_lookup_bio_sums(struct btrfs_root *root,
struct inode *inode, struct bio *bio,
u64 logical_offset, u32 *dst, int dio)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct bio_vec *bvec;
struct btrfs_io_bio *btrfs_bio = btrfs_io_bio(bio);
struct btrfs_csum_item *item = NULL;
@@ -177,7 +179,7 @@ static int __btrfs_lookup_bio_sums(struct btrfs_root *root,
u32 diff;
int nblocks;
int count = 0, i;
- u16 csum_size = btrfs_super_csum_size(root->fs_info->super_copy);
+ u16 csum_size = btrfs_super_csum_size(fs_info->super_copy);
path = btrfs_alloc_path();
if (!path)
@@ -241,7 +243,7 @@ static int __btrfs_lookup_bio_sums(struct btrfs_root *root,
if (item)
btrfs_release_path(path);
- item = btrfs_lookup_csum(NULL, root->fs_info->csum_root,
+ item = btrfs_lookup_csum(NULL, fs_info->csum_root,
path, disk_bytenr, 0);
if (IS_ERR(item)) {
count = 1;
@@ -249,10 +251,10 @@ static int __btrfs_lookup_bio_sums(struct btrfs_root *root,
if (BTRFS_I(inode)->root->root_key.objectid ==
BTRFS_DATA_RELOC_TREE_OBJECTID) {
set_extent_bits(io_tree, offset,
- offset + root->fs_info->sectorsize - 1,
+ offset + fs_info->sectorsize - 1,
EXTENT_NODATASUM);
} else {
- btrfs_info_rl(BTRFS_I(inode)->root->fs_info,
+ btrfs_info_rl(fs_info,
"no csum found for inode %llu start %llu",
btrfs_ino(inode), offset);
}
@@ -268,7 +270,7 @@ static int __btrfs_lookup_bio_sums(struct btrfs_root *root,
path->slots[0]);
item_last_offset = item_start_offset +
(item_size / csum_size) *
- root->fs_info->sectorsize;
+ fs_info->sectorsize;
item = btrfs_item_ptr(path->nodes[0], path->slots[0],
struct btrfs_csum_item);
}
@@ -277,7 +279,7 @@ static int __btrfs_lookup_bio_sums(struct btrfs_root *root,
* a single leaf so it will also fit inside a u32
*/
diff = disk_bytenr - item_start_offset;
- diff = diff / root->fs_info->sectorsize;
+ diff = diff / fs_info->sectorsize;
diff = diff * csum_size;
count = min_t(int, nblocks, (item_last_offset - disk_bytenr) >>
inode->i_sb->s_blocksize_bits);
@@ -289,9 +291,9 @@ static int __btrfs_lookup_bio_sums(struct btrfs_root *root,
nblocks -= count;
next:
while (count--) {
- disk_bytenr += root->fs_info->sectorsize;
- offset += root->fs_info->sectorsize;
- page_bytes_left -= root->fs_info->sectorsize;
+ disk_bytenr += fs_info->sectorsize;
+ offset += fs_info->sectorsize;
+ page_bytes_left -= fs_info->sectorsize;
if (!page_bytes_left)
break; /* move to next bio */
}
@@ -317,6 +319,7 @@ int btrfs_lookup_bio_sums_dio(struct btrfs_root *root, struct inode *inode,
int btrfs_lookup_csums_range(struct btrfs_root *root, u64 start, u64 end,
struct list_head *list, int search_commit)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_key key;
struct btrfs_path *path;
struct extent_buffer *leaf;
@@ -327,10 +330,10 @@ int btrfs_lookup_csums_range(struct btrfs_root *root, u64 start, u64 end,
int ret;
size_t size;
u64 csum_end;
- u16 csum_size = btrfs_super_csum_size(root->fs_info->super_copy);
+ u16 csum_size = btrfs_super_csum_size(fs_info->super_copy);
- ASSERT(IS_ALIGNED(start, root->fs_info->sectorsize) &&
- IS_ALIGNED(end + 1, root->fs_info->sectorsize));
+ ASSERT(IS_ALIGNED(start, fs_info->sectorsize) &&
+ IS_ALIGNED(end + 1, fs_info->sectorsize));
path = btrfs_alloc_path();
if (!path)
@@ -355,7 +358,7 @@ int btrfs_lookup_csums_range(struct btrfs_root *root, u64 start, u64 end,
if (key.objectid == BTRFS_EXTENT_CSUM_OBJECTID &&
key.type == BTRFS_EXTENT_CSUM_KEY) {
offset = (start - key.offset) >>
- root->fs_info->sb->s_blocksize_bits;
+ fs_info->sb->s_blocksize_bits;
if (offset * csum_size <
btrfs_item_size_nr(leaf, path->slots[0] - 1))
path->slots[0]--;
@@ -383,7 +386,7 @@ int btrfs_lookup_csums_range(struct btrfs_root *root, u64 start, u64 end,
start = key.offset;
size = btrfs_item_size_nr(leaf, path->slots[0]);
- csum_end = key.offset + (size / csum_size) * root->fs_info->sectorsize;
+ csum_end = key.offset + (size / csum_size) * fs_info->sectorsize;
if (csum_end <= start) {
path->slots[0]++;
continue;
@@ -394,9 +397,8 @@ int btrfs_lookup_csums_range(struct btrfs_root *root, u64 start, u64 end,
struct btrfs_csum_item);
while (start < csum_end) {
size = min_t(size_t, csum_end - start,
- MAX_ORDERED_SUM_BYTES(root->fs_info));
- sums = kzalloc(btrfs_ordered_sum_size(root->fs_info,
- size),
+ MAX_ORDERED_SUM_BYTES(fs_info));
+ sums = kzalloc(btrfs_ordered_sum_size(fs_info, size),
GFP_NOFS);
if (!sums) {
ret = -ENOMEM;
@@ -407,16 +409,16 @@ int btrfs_lookup_csums_range(struct btrfs_root *root, u64 start, u64 end,
sums->len = (int)size;
offset = (start - key.offset) >>
- root->fs_info->sb->s_blocksize_bits;
+ fs_info->sb->s_blocksize_bits;
offset *= csum_size;
- size >>= root->fs_info->sb->s_blocksize_bits;
+ size >>= fs_info->sb->s_blocksize_bits;
read_extent_buffer(path->nodes[0],
sums->sums,
((unsigned long)item) + offset,
csum_size * size);
- start += root->fs_info->sectorsize * size;
+ start += fs_info->sectorsize * size;
list_add_tail(&sums->list, &tmplist);
}
path->slots[0]++;
@@ -437,6 +439,7 @@ int btrfs_lookup_csums_range(struct btrfs_root *root, u64 start, u64 end,
int btrfs_csum_one_bio(struct btrfs_root *root, struct inode *inode,
struct bio *bio, u64 file_start, int contig)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_ordered_sum *sums;
struct btrfs_ordered_extent *ordered = NULL;
char *data;
@@ -449,8 +452,7 @@ int btrfs_csum_one_bio(struct btrfs_root *root, struct inode *inode,
u64 offset;
WARN_ON(bio->bi_vcnt <= 0);
- sums = kzalloc(btrfs_ordered_sum_size(root->fs_info,
- bio->bi_iter.bi_size),
+ sums = kzalloc(btrfs_ordered_sum_size(fs_info, bio->bi_iter.bi_size),
GFP_NOFS);
if (!sums)
return -ENOMEM;
@@ -477,9 +479,9 @@ int btrfs_csum_one_bio(struct btrfs_root *root, struct inode *inode,
data = kmap_atomic(bvec->bv_page);
- nr_sectors = BTRFS_BYTES_TO_BLKS(root->fs_info,
- bvec->bv_len + root->fs_info->sectorsize
- - 1);
+ nr_sectors = BTRFS_BYTES_TO_BLKS(fs_info,
+ bvec->bv_len + fs_info->sectorsize
+ - 1);
for (i = 0; i < nr_sectors; i++) {
if (offset >= ordered->file_offset + ordered->len ||
@@ -494,8 +496,8 @@ int btrfs_csum_one_bio(struct btrfs_root *root, struct inode *inode,
bytes_left = bio->bi_iter.bi_size - total_bytes;
- sums = kzalloc(btrfs_ordered_sum_size(root->fs_info, bytes_left),
- GFP_NOFS);
+ sums = kzalloc(btrfs_ordered_sum_size(fs_info, bytes_left),
+ GFP_NOFS);
BUG_ON(!sums); /* -ENOMEM */
sums->len = bytes_left;
ordered = btrfs_lookup_ordered_extent(inode,
@@ -511,15 +513,15 @@ int btrfs_csum_one_bio(struct btrfs_root *root, struct inode *inode,
sums->sums[index] = ~(u32)0;
sums->sums[index]
= btrfs_csum_data(data + bvec->bv_offset
- + (i * root->fs_info->sectorsize),
+ + (i * fs_info->sectorsize),
sums->sums[index],
- root->fs_info->sectorsize);
+ fs_info->sectorsize);
btrfs_csum_final(sums->sums[index],
(char *)(sums->sums + index));
index++;
- offset += root->fs_info->sectorsize;
- this_sum_bytes += root->fs_info->sectorsize;
- total_bytes += root->fs_info->sectorsize;
+ offset += fs_info->sectorsize;
+ this_sum_bytes += fs_info->sectorsize;
+ total_bytes += fs_info->sectorsize;
}
kunmap_atomic(data);
@@ -546,15 +548,16 @@ static noinline void truncate_one_csum(struct btrfs_root *root,
struct btrfs_key *key,
u64 bytenr, u64 len)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct extent_buffer *leaf;
- u16 csum_size = btrfs_super_csum_size(root->fs_info->super_copy);
+ u16 csum_size = btrfs_super_csum_size(fs_info->super_copy);
u64 csum_end;
u64 end_byte = bytenr + len;
- u32 blocksize_bits = root->fs_info->sb->s_blocksize_bits;
+ u32 blocksize_bits = fs_info->sb->s_blocksize_bits;
leaf = path->nodes[0];
csum_end = btrfs_item_size_nr(leaf, path->slots[0]) / csum_size;
- csum_end <<= root->fs_info->sb->s_blocksize_bits;
+ csum_end <<= fs_info->sb->s_blocksize_bits;
csum_end += key->offset;
if (key->offset < bytenr && csum_end <= end_byte) {
@@ -581,7 +584,7 @@ static noinline void truncate_one_csum(struct btrfs_root *root,
btrfs_truncate_item(root, path, new_size, 0);
key->offset = end_byte;
- btrfs_set_item_key_safe(root->fs_info, path, key);
+ btrfs_set_item_key_safe(fs_info, path, key);
} else {
BUG();
}
@@ -601,8 +604,8 @@ int btrfs_del_csums(struct btrfs_trans_handle *trans,
u64 csum_end;
struct extent_buffer *leaf;
int ret;
- u16 csum_size = btrfs_super_csum_size(root->fs_info->super_copy);
- int blocksize_bits = root->fs_info->sb->s_blocksize_bits;
+ u16 csum_size = btrfs_super_csum_size(fs_info->super_copy);
+ int blocksize_bits = fs_info->sb->s_blocksize_bits;
path = btrfs_alloc_path();
if (!path)
@@ -711,6 +714,7 @@ int btrfs_csum_file_blocks(struct btrfs_trans_handle *trans,
struct btrfs_root *root,
struct btrfs_ordered_sum *sums)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_key file_key;
struct btrfs_key found_key;
struct btrfs_path *path;
@@ -726,7 +730,7 @@ int btrfs_csum_file_blocks(struct btrfs_trans_handle *trans,
int index = 0;
int found_next;
int ret;
- u16 csum_size = btrfs_super_csum_size(root->fs_info->super_copy);
+ u16 csum_size = btrfs_super_csum_size(fs_info->super_copy);
path = btrfs_alloc_path();
if (!path)
@@ -759,7 +763,7 @@ int btrfs_csum_file_blocks(struct btrfs_trans_handle *trans,
leaf = path->nodes[0];
item_size = btrfs_item_size_nr(leaf, path->slots[0]);
if ((item_size / csum_size) >=
- MAX_CSUM_ITEMS(root->fs_info, csum_size)) {
+ MAX_CSUM_ITEMS(fs_info, csum_size)) {
/* already at max size, make a new one */
goto insert;
}
@@ -805,11 +809,11 @@ int btrfs_csum_file_blocks(struct btrfs_trans_handle *trans,
leaf = path->nodes[0];
btrfs_item_key_to_cpu(leaf, &found_key, path->slots[0]);
csum_offset = (bytenr - found_key.offset) >>
- root->fs_info->sb->s_blocksize_bits;
+ fs_info->sb->s_blocksize_bits;
if (found_key.type != BTRFS_EXTENT_CSUM_KEY ||
found_key.objectid != BTRFS_EXTENT_CSUM_OBJECTID ||
- csum_offset >= MAX_CSUM_ITEMS(root->fs_info, csum_size)) {
+ csum_offset >= MAX_CSUM_ITEMS(fs_info, csum_size)) {
goto insert;
}
@@ -827,12 +831,13 @@ int btrfs_csum_file_blocks(struct btrfs_trans_handle *trans,
free_space = btrfs_leaf_free_space(root, leaf) -
sizeof(struct btrfs_item) - csum_size;
tmp = sums->len - total_bytes;
- tmp >>= root->fs_info->sb->s_blocksize_bits;
+ tmp >>= fs_info->sb->s_blocksize_bits;
WARN_ON(tmp < 1);
extend_nr = max_t(int, 1, (int)tmp);
diff = (csum_offset + extend_nr) * csum_size;
- diff = min(diff, MAX_CSUM_ITEMS(root->fs_info, csum_size) * csum_size);
+ diff = min(diff,
+ MAX_CSUM_ITEMS(fs_info, csum_size) * csum_size);
diff = diff - btrfs_item_size_nr(leaf, path->slots[0]);
diff = min(free_space, diff);
@@ -851,12 +856,12 @@ int btrfs_csum_file_blocks(struct btrfs_trans_handle *trans,
u64 tmp;
tmp = sums->len - total_bytes;
- tmp >>= root->fs_info->sb->s_blocksize_bits;
+ tmp >>= fs_info->sb->s_blocksize_bits;
tmp = min(tmp, (next_offset - file_key.offset) >>
- root->fs_info->sb->s_blocksize_bits);
+ fs_info->sb->s_blocksize_bits);
tmp = max((u64)1, tmp);
- tmp = min(tmp, (u64)MAX_CSUM_ITEMS(root->fs_info, csum_size));
+ tmp = min(tmp, (u64)MAX_CSUM_ITEMS(fs_info, csum_size));
ins_size = csum_size * tmp;
} else {
ins_size = csum_size;
@@ -878,7 +883,7 @@ int btrfs_csum_file_blocks(struct btrfs_trans_handle *trans,
csum_offset * csum_size);
found:
ins_size = (u32)(sums->len - total_bytes) >>
- root->fs_info->sb->s_blocksize_bits;
+ fs_info->sb->s_blocksize_bits;
ins_size *= csum_size;
ins_size = min_t(u32, (unsigned long)item_end - (unsigned long)item,
ins_size);
@@ -886,7 +891,7 @@ int btrfs_csum_file_blocks(struct btrfs_trans_handle *trans,
ins_size);
ins_size /= csum_size;
- total_bytes += ins_size * root->fs_info->sectorsize;
+ total_bytes += ins_size * fs_info->sectorsize;
index += ins_size;
btrfs_mark_buffer_dirty(path->nodes[0]);
@@ -909,6 +914,7 @@ void btrfs_extent_item_to_extent_map(struct inode *inode,
const bool new_inline,
struct extent_map *em)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_root *root = BTRFS_I(inode)->root;
struct extent_buffer *leaf = path->nodes[0];
const int slot = path->slots[0];
@@ -918,7 +924,7 @@ void btrfs_extent_item_to_extent_map(struct inode *inode,
u8 type = btrfs_file_extent_type(leaf, fi);
int compress_type = btrfs_file_extent_compression(leaf, fi);
- em->bdev = root->fs_info->fs_devices->latest_bdev;
+ em->bdev = fs_info->fs_devices->latest_bdev;
btrfs_item_key_to_cpu(leaf, &key, slot);
extent_start = key.offset;
@@ -930,7 +936,7 @@ void btrfs_extent_item_to_extent_map(struct inode *inode,
size_t size;
size = btrfs_file_extent_inline_len(leaf, slot, fi);
extent_end = ALIGN(extent_start + size,
- root->fs_info->sectorsize);
+ fs_info->sectorsize);
}
em->ram_bytes = btrfs_file_extent_ram_bytes(leaf, fi);
@@ -973,7 +979,7 @@ void btrfs_extent_item_to_extent_map(struct inode *inode,
em->compress_type = compress_type;
}
} else {
- btrfs_err(root->fs_info,
+ btrfs_err(fs_info,
"unknown file extent item type %d, inode %llu, offset %llu, root %llu",
type, btrfs_ino(inode), extent_start,
root->root_key.objectid);
diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
index 008670e..d49d8ea 100644
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -95,13 +95,13 @@ static int __compare_inode_defrag(struct inode_defrag *defrag1,
static int __btrfs_add_inode_defrag(struct inode *inode,
struct inode_defrag *defrag)
{
- struct btrfs_root *root = BTRFS_I(inode)->root;
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct inode_defrag *entry;
struct rb_node **p;
struct rb_node *parent = NULL;
int ret;
- p = &root->fs_info->defrag_inodes.rb_node;
+ p = &fs_info->defrag_inodes.rb_node;
while (*p) {
parent = *p;
entry = rb_entry(parent, struct inode_defrag, rb_node);
@@ -125,16 +125,18 @@ static int __btrfs_add_inode_defrag(struct inode *inode,
}
set_bit(BTRFS_INODE_IN_DEFRAG, &BTRFS_I(inode)->runtime_flags);
rb_link_node(&defrag->rb_node, parent, p);
- rb_insert_color(&defrag->rb_node, &root->fs_info->defrag_inodes);
+ rb_insert_color(&defrag->rb_node, &fs_info->defrag_inodes);
return 0;
}
static inline int __need_auto_defrag(struct btrfs_root *root)
{
- if (!btrfs_test_opt(root->fs_info, AUTO_DEFRAG))
+ struct btrfs_fs_info *fs_info = root->fs_info;
+
+ if (!btrfs_test_opt(fs_info, AUTO_DEFRAG))
return 0;
- if (btrfs_fs_closing(root->fs_info))
+ if (btrfs_fs_closing(fs_info))
return 0;
return 1;
@@ -147,6 +149,7 @@ static inline int __need_auto_defrag(struct btrfs_root *root)
int btrfs_add_inode_defrag(struct btrfs_trans_handle *trans,
struct inode *inode)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_root *root = BTRFS_I(inode)->root;
struct inode_defrag *defrag;
u64 transid;
@@ -171,7 +174,7 @@ int btrfs_add_inode_defrag(struct btrfs_trans_handle *trans,
defrag->transid = transid;
defrag->root = root->root_key.objectid;
- spin_lock(&root->fs_info->defrag_inodes_lock);
+ spin_lock(&fs_info->defrag_inodes_lock);
if (!test_bit(BTRFS_INODE_IN_DEFRAG, &BTRFS_I(inode)->runtime_flags)) {
/*
* If we set IN_DEFRAG flag and evict the inode from memory,
@@ -184,7 +187,7 @@ int btrfs_add_inode_defrag(struct btrfs_trans_handle *trans,
} else {
kmem_cache_free(btrfs_inode_defrag_cachep, defrag);
}
- spin_unlock(&root->fs_info->defrag_inodes_lock);
+ spin_unlock(&fs_info->defrag_inodes_lock);
return 0;
}
@@ -196,6 +199,7 @@ int btrfs_add_inode_defrag(struct btrfs_trans_handle *trans,
static void btrfs_requeue_inode_defrag(struct inode *inode,
struct inode_defrag *defrag)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_root *root = BTRFS_I(inode)->root;
int ret;
@@ -206,9 +210,9 @@ static void btrfs_requeue_inode_defrag(struct inode *inode,
* Here we don't check the IN_DEFRAG flag, because we need merge
* them together.
*/
- spin_lock(&root->fs_info->defrag_inodes_lock);
+ spin_lock(&fs_info->defrag_inodes_lock);
ret = __btrfs_add_inode_defrag(inode, defrag);
- spin_unlock(&root->fs_info->defrag_inodes_lock);
+ spin_unlock(&fs_info->defrag_inodes_lock);
if (ret)
goto out;
return;
@@ -489,6 +493,7 @@ int btrfs_dirty_pages(struct btrfs_root *root, struct inode *inode,
loff_t pos, size_t write_bytes,
struct extent_state **cached)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
int err = 0;
int i;
u64 num_bytes;
@@ -497,9 +502,9 @@ int btrfs_dirty_pages(struct btrfs_root *root, struct inode *inode,
u64 end_pos = pos + write_bytes;
loff_t isize = i_size_read(inode);
- start_pos = pos & ~((u64) root->fs_info->sectorsize - 1);
+ start_pos = pos & ~((u64) fs_info->sectorsize - 1);
num_bytes = round_up(write_bytes + pos - start_pos,
- root->fs_info->sectorsize);
+ fs_info->sectorsize);
end_of_last_block = start_pos + num_bytes - 1;
err = btrfs_set_extent_delalloc(inode, start_pos, end_of_last_block,
@@ -696,6 +701,7 @@ int __btrfs_drop_extents(struct btrfs_trans_handle *trans,
u32 extent_item_size,
int *key_inserted)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct extent_buffer *leaf;
struct btrfs_file_extent_item *fi;
struct btrfs_key key;
@@ -724,7 +730,7 @@ int __btrfs_drop_extents(struct btrfs_trans_handle *trans,
modify_tree = 0;
update_refs = (test_bit(BTRFS_ROOT_REF_COWS, &root->state) ||
- root == root->fs_info->tree_root);
+ root == fs_info->tree_root);
while (1) {
recow = 0;
ret = btrfs_lookup_file_extent(trans, root, path, ino,
@@ -881,7 +887,7 @@ int __btrfs_drop_extents(struct btrfs_trans_handle *trans,
memcpy(&new_key, &key, sizeof(new_key));
new_key.offset = end;
- btrfs_set_item_key_safe(root->fs_info, path, &new_key);
+ btrfs_set_item_key_safe(fs_info, path, &new_key);
extent_offset += end - key.offset;
btrfs_set_file_extent_offset(leaf, fi, extent_offset);
@@ -936,7 +942,7 @@ int __btrfs_drop_extents(struct btrfs_trans_handle *trans,
inode_sub_bytes(inode,
extent_end - key.offset);
extent_end = ALIGN(extent_end,
- root->fs_info->sectorsize);
+ fs_info->sectorsize);
} else if (update_refs && disk_bytenr > 0) {
ret = btrfs_free_extent(trans, root,
disk_bytenr, num_bytes, 0,
@@ -1082,6 +1088,7 @@ static int extent_mergeable(struct extent_buffer *leaf, int slot,
int btrfs_mark_extent_written(struct btrfs_trans_handle *trans,
struct inode *inode, u64 start, u64 end)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_root *root = BTRFS_I(inode)->root;
struct extent_buffer *leaf;
struct btrfs_path *path;
@@ -1151,7 +1158,7 @@ int btrfs_mark_extent_written(struct btrfs_trans_handle *trans,
ino, bytenr, orig_offset,
&other_start, &other_end)) {
new_key.offset = end;
- btrfs_set_item_key_safe(root->fs_info, path, &new_key);
+ btrfs_set_item_key_safe(fs_info, path, &new_key);
fi = btrfs_item_ptr(leaf, path->slots[0],
struct btrfs_file_extent_item);
btrfs_set_file_extent_generation(leaf, fi,
@@ -1185,7 +1192,7 @@ int btrfs_mark_extent_written(struct btrfs_trans_handle *trans,
trans->transid);
path->slots[0]++;
new_key.offset = start;
- btrfs_set_item_key_safe(root->fs_info, path, &new_key);
+ btrfs_set_item_key_safe(fs_info, path, &new_key);
fi = btrfs_item_ptr(leaf, path->slots[0],
struct btrfs_file_extent_item);
@@ -1418,16 +1425,16 @@ lock_and_cleanup_extent_if_need(struct inode *inode, struct page **pages,
u64 *lockstart, u64 *lockend,
struct extent_state **cached_state)
{
- struct btrfs_root *root = BTRFS_I(inode)->root;
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
u64 start_pos;
u64 last_pos;
int i;
int ret = 0;
- start_pos = round_down(pos, root->fs_info->sectorsize);
+ start_pos = round_down(pos, fs_info->sectorsize);
last_pos = start_pos
+ round_up(pos + write_bytes - start_pos,
- root->fs_info->sectorsize) - 1;
+ fs_info->sectorsize) - 1;
if (start_pos < inode->i_size) {
struct btrfs_ordered_extent *ordered;
@@ -1474,6 +1481,7 @@ lock_and_cleanup_extent_if_need(struct inode *inode, struct page **pages,
static noinline int check_can_nocow(struct inode *inode, loff_t pos,
size_t *write_bytes)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_root *root = BTRFS_I(inode)->root;
struct btrfs_ordered_extent *ordered;
u64 lockstart, lockend;
@@ -1484,9 +1492,9 @@ static noinline int check_can_nocow(struct inode *inode, loff_t pos,
if (!ret)
return -ENOSPC;
- lockstart = round_down(pos, root->fs_info->sectorsize);
+ lockstart = round_down(pos, fs_info->sectorsize);
lockend = round_up(pos + *write_bytes,
- root->fs_info->sectorsize) - 1;
+ fs_info->sectorsize) - 1;
while (1) {
lock_extent(&BTRFS_I(inode)->io_tree, lockstart, lockend);
@@ -1520,8 +1528,8 @@ static noinline ssize_t __btrfs_buffered_write(struct file *file,
loff_t pos)
{
struct inode *inode = file_inode(file);
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_root *root = BTRFS_I(inode)->root;
- struct btrfs_fs_info *fs_info = root->fs_info;
struct page **pages = NULL;
struct extent_state *cached_state = NULL;
u64 release_bytes = 0;
@@ -1633,12 +1641,10 @@ static noinline ssize_t __btrfs_buffered_write(struct file *file,
copied = btrfs_copy_from_user(pos, write_bytes, pages, i);
- num_sectors = BTRFS_BYTES_TO_BLKS(root->fs_info,
- reserve_bytes);
+ num_sectors = BTRFS_BYTES_TO_BLKS(fs_info, reserve_bytes);
dirty_sectors = round_up(copied + sector_offset,
- root->fs_info->sectorsize);
- dirty_sectors = BTRFS_BYTES_TO_BLKS(root->fs_info,
- dirty_sectors);
+ fs_info->sectorsize);
+ dirty_sectors = BTRFS_BYTES_TO_BLKS(fs_info, dirty_sectors);
/*
* if we have trouble faulting in the pages, fall
@@ -1666,11 +1672,9 @@ static noinline ssize_t __btrfs_buffered_write(struct file *file,
* managed to copy.
*/
if (num_sectors > dirty_sectors) {
-
/* release everything except the sectors we dirtied */
release_bytes -= dirty_sectors <<
- root->fs_info->sb->s_blocksize_bits;
-
+ fs_info->sb->s_blocksize_bits;
if (copied > 0) {
spin_lock(&BTRFS_I(inode)->lock);
BTRFS_I(inode)->outstanding_extents++;
@@ -1683,7 +1687,7 @@ static noinline ssize_t __btrfs_buffered_write(struct file *file,
u64 __pos;
__pos = round_down(pos,
- root->fs_info->sectorsize) +
+ fs_info->sectorsize) +
(dirty_pages << PAGE_SHIFT);
btrfs_delalloc_release_space(inode, __pos,
release_bytes);
@@ -1691,7 +1695,7 @@ static noinline ssize_t __btrfs_buffered_write(struct file *file,
}
release_bytes = round_up(copied + sector_offset,
- root->fs_info->sectorsize);
+ fs_info->sectorsize);
if (copied > 0)
ret = btrfs_dirty_pages(root, inode, pages,
@@ -1712,9 +1716,9 @@ static noinline ssize_t __btrfs_buffered_write(struct file *file,
if (only_release_metadata && copied > 0) {
lockstart = round_down(pos,
- root->fs_info->sectorsize);
+ fs_info->sectorsize);
lockend = round_up(pos + copied,
- root->fs_info->sectorsize) - 1;
+ fs_info->sectorsize) - 1;
set_extent_bit(&BTRFS_I(inode)->io_tree, lockstart,
lockend, EXTENT_NORESERVE, NULL,
@@ -1727,7 +1731,7 @@ static noinline ssize_t __btrfs_buffered_write(struct file *file,
cond_resched();
balance_dirty_pages_ratelimited(inode->i_mapping);
- if (dirty_pages < (root->fs_info->nodesize >> PAGE_SHIFT) + 1)
+ if (dirty_pages < (fs_info->nodesize >> PAGE_SHIFT) + 1)
btrfs_btree_balance_dirty(root);
pos += copied;
@@ -1742,7 +1746,7 @@ static noinline ssize_t __btrfs_buffered_write(struct file *file,
btrfs_delalloc_release_metadata(inode, release_bytes);
} else {
btrfs_delalloc_release_space(inode,
- round_down(pos, root->fs_info->sectorsize),
+ round_down(pos, fs_info->sectorsize),
release_bytes);
}
}
@@ -1813,6 +1817,7 @@ static ssize_t btrfs_file_write_iter(struct kiocb *iocb,
{
struct file *file = iocb->ki_filp;
struct inode *inode = file_inode(file);
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_root *root = BTRFS_I(inode)->root;
u64 start_pos;
u64 end_pos;
@@ -1844,7 +1849,7 @@ static ssize_t btrfs_file_write_iter(struct kiocb *iocb,
* although we have opened a file as writable, we have
* to stop this write operation to ensure FS consistency.
*/
- if (test_bit(BTRFS_FS_STATE_ERROR, &root->fs_info->fs_state)) {
+ if (test_bit(BTRFS_FS_STATE_ERROR, &fs_info->fs_state)) {
inode_unlock(inode);
err = -EROFS;
goto out;
@@ -1860,18 +1865,18 @@ static ssize_t btrfs_file_write_iter(struct kiocb *iocb,
pos = iocb->ki_pos;
count = iov_iter_count(from);
- start_pos = round_down(pos, root->fs_info->sectorsize);
+ start_pos = round_down(pos, fs_info->sectorsize);
oldsize = i_size_read(inode);
if (start_pos > oldsize) {
/* Expand hole size to cover write data, preventing empty gap */
end_pos = round_up(pos + count,
- root->fs_info->sectorsize);
+ fs_info->sectorsize);
err = btrfs_cont_expand(inode, oldsize, end_pos);
if (err) {
inode_unlock(inode);
goto out;
}
- if (start_pos > round_up(oldsize, root->fs_info->sectorsize))
+ if (start_pos > round_up(oldsize, fs_info->sectorsize))
clean_page = 1;
}
@@ -1951,6 +1956,7 @@ int btrfs_sync_file(struct file *file, loff_t start, loff_t end, int datasync)
{
struct dentry *dentry = file_dentry(file);
struct inode *inode = d_inode(dentry);
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_root *root = BTRFS_I(inode)->root;
struct btrfs_trans_handle *trans;
struct btrfs_log_ctx ctx;
@@ -2061,12 +2067,12 @@ int btrfs_sync_file(struct file *file, loff_t start, loff_t end, int datasync)
* commit does not start nor waits for ordered extents to complete.
*/
smp_mb();
- if (btrfs_inode_in_log(inode, root->fs_info->generation) ||
+ if (btrfs_inode_in_log(inode, fs_info->generation) ||
(full_sync && BTRFS_I(inode)->last_trans <=
- root->fs_info->last_trans_committed) ||
+ fs_info->last_trans_committed) ||
(!btrfs_have_ordered_extents_in_range(inode, start, len) &&
BTRFS_I(inode)->last_trans
- <= root->fs_info->last_trans_committed)) {
+ <= fs_info->last_trans_committed)) {
/*
* We've had everything committed since the last time we were
* modified so clear this flag in case it was set for whatever
@@ -2224,6 +2230,7 @@ static int hole_mergeable(struct inode *inode, struct extent_buffer *leaf,
static int fill_holes(struct btrfs_trans_handle *trans, struct inode *inode,
struct btrfs_path *path, u64 offset, u64 end)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_root *root = BTRFS_I(inode)->root;
struct extent_buffer *leaf;
struct btrfs_file_extent_item *fi;
@@ -2232,7 +2239,7 @@ static int fill_holes(struct btrfs_trans_handle *trans, struct inode *inode,
struct btrfs_key key;
int ret;
- if (btrfs_fs_incompat(root->fs_info, NO_HOLES))
+ if (btrfs_fs_incompat(fs_info, NO_HOLES))
goto out;
key.objectid = btrfs_ino(inode);
@@ -2270,7 +2277,7 @@ static int fill_holes(struct btrfs_trans_handle *trans, struct inode *inode,
u64 num_bytes;
key.offset = offset;
- btrfs_set_item_key_safe(root->fs_info, path, &key);
+ btrfs_set_item_key_safe(fs_info, path, &key);
fi = btrfs_item_ptr(leaf, path->slots[0],
struct btrfs_file_extent_item);
num_bytes = btrfs_file_extent_num_bytes(leaf, fi) + end -
@@ -2306,7 +2313,7 @@ static int fill_holes(struct btrfs_trans_handle *trans, struct inode *inode,
hole_em->block_start = EXTENT_MAP_HOLE;
hole_em->block_len = 0;
hole_em->orig_block_len = 0;
- hole_em->bdev = root->fs_info->fs_devices->latest_bdev;
+ hole_em->bdev = fs_info->fs_devices->latest_bdev;
hole_em->compress_type = BTRFS_COMPRESS_NONE;
hole_em->generation = trans->transid;
@@ -2358,6 +2365,7 @@ static int find_first_non_hole(struct inode *inode, u64 *start, u64 *len)
static int btrfs_punch_hole(struct inode *inode, loff_t offset, loff_t len)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_root *root = BTRFS_I(inode)->root;
struct extent_state *cached_state = NULL;
struct btrfs_path *path;
@@ -2369,13 +2377,13 @@ static int btrfs_punch_hole(struct inode *inode, loff_t offset, loff_t len)
u64 tail_len;
u64 orig_start = offset;
u64 cur_offset;
- u64 min_size = btrfs_calc_trunc_metadata_size(root->fs_info, 1);
+ u64 min_size = btrfs_calc_trunc_metadata_size(fs_info, 1);
u64 drop_end;
int ret = 0;
int err = 0;
unsigned int rsv_count;
bool same_block;
- bool no_holes = btrfs_fs_incompat(root->fs_info, NO_HOLES);
+ bool no_holes = btrfs_fs_incompat(fs_info, NO_HOLES);
u64 ino_size;
bool truncated_block = false;
bool updated_inode = false;
@@ -2385,7 +2393,7 @@ static int btrfs_punch_hole(struct inode *inode, loff_t offset, loff_t len)
return ret;
inode_lock(inode);
- ino_size = round_up(inode->i_size, root->fs_info->sectorsize);
+ ino_size = round_up(inode->i_size, fs_info->sectorsize);
ret = find_first_non_hole(inode, &offset, &len);
if (ret < 0)
goto out_only_mutex;
@@ -2398,8 +2406,8 @@ static int btrfs_punch_hole(struct inode *inode, loff_t offset, loff_t len)
lockstart = round_up(offset, btrfs_inode_sectorsize(inode));
lockend = round_down(offset + len,
btrfs_inode_sectorsize(inode)) - 1;
- same_block = (BTRFS_BYTES_TO_BLKS(root->fs_info, offset))
- == (BTRFS_BYTES_TO_BLKS(root->fs_info, offset + len - 1));
+ same_block = (BTRFS_BYTES_TO_BLKS(fs_info, offset))
+ == (BTRFS_BYTES_TO_BLKS(fs_info, offset + len - 1));
/*
* We needn't truncate any block which is beyond the end of the file
* because we are sure there is no data there.
@@ -2408,7 +2416,7 @@ static int btrfs_punch_hole(struct inode *inode, loff_t offset, loff_t len)
* Only do this if we are in the same block and we aren't doing the
* entire block.
*/
- if (same_block && len < root->fs_info->sectorsize) {
+ if (same_block && len < fs_info->sectorsize) {
if (offset < ino_size) {
truncated_block = true;
ret = btrfs_truncate_block(inode, offset, len, 0);
@@ -2516,7 +2524,7 @@ static int btrfs_punch_hole(struct inode *inode, loff_t offset, loff_t len)
ret = -ENOMEM;
goto out_free;
}
- rsv->size = btrfs_calc_trunc_metadata_size(root->fs_info, 1);
+ rsv->size = btrfs_calc_trunc_metadata_size(fs_info, 1);
rsv->failfast = 1;
/*
@@ -2531,7 +2539,7 @@ static int btrfs_punch_hole(struct inode *inode, loff_t offset, loff_t len)
goto out_free;
}
- ret = btrfs_block_rsv_migrate(&root->fs_info->trans_block_rsv, rsv,
+ ret = btrfs_block_rsv_migrate(&fs_info->trans_block_rsv, rsv,
min_size, 0);
BUG_ON(ret);
trans->block_rsv = rsv;
@@ -2545,7 +2553,7 @@ static int btrfs_punch_hole(struct inode *inode, loff_t offset, loff_t len)
if (ret != -ENOSPC)
break;
- trans->block_rsv = &root->fs_info->trans_block_rsv;
+ trans->block_rsv = &fs_info->trans_block_rsv;
if (cur_offset < drop_end && cur_offset < ino_size) {
ret = fill_holes(trans, inode, path, cur_offset,
@@ -2581,7 +2589,7 @@ static int btrfs_punch_hole(struct inode *inode, loff_t offset, loff_t len)
break;
}
- ret = btrfs_block_rsv_migrate(&root->fs_info->trans_block_rsv,
+ ret = btrfs_block_rsv_migrate(&fs_info->trans_block_rsv,
rsv, min_size, 0);
BUG_ON(ret); /* shouldn't happen */
trans->block_rsv = rsv;
@@ -2600,7 +2608,7 @@ static int btrfs_punch_hole(struct inode *inode, loff_t offset, loff_t len)
goto out_trans;
}
- trans->block_rsv = &root->fs_info->trans_block_rsv;
+ trans->block_rsv = &fs_info->trans_block_rsv;
/*
* If we are using the NO_HOLES feature we might have had already an
* hole that overlaps a part of the region [lockstart, lockend] and
@@ -2636,7 +2644,7 @@ static int btrfs_punch_hole(struct inode *inode, loff_t offset, loff_t len)
inode_inc_iversion(inode);
inode->i_mtime = inode->i_ctime = current_time(inode);
- trans->block_rsv = &root->fs_info->trans_block_rsv;
+ trans->block_rsv = &fs_info->trans_block_rsv;
ret = btrfs_update_inode(trans, root, inode);
updated_inode = true;
btrfs_end_transaction(trans, root);
@@ -2922,7 +2930,7 @@ static long btrfs_fallocate(struct file *file, int mode,
static int find_desired_extent(struct inode *inode, loff_t *offset, int whence)
{
- struct btrfs_root *root = BTRFS_I(inode)->root;
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct extent_map *em = NULL;
struct extent_state *cached_state = NULL;
u64 lockstart;
@@ -2940,11 +2948,11 @@ static int find_desired_extent(struct inode *inode, loff_t *offset, int whence)
*/
start = max_t(loff_t, 0, *offset);
- lockstart = round_down(start, root->fs_info->sectorsize);
+ lockstart = round_down(start, fs_info->sectorsize);
lockend = round_up(i_size_read(inode),
- root->fs_info->sectorsize);
+ fs_info->sectorsize);
if (lockend <= lockstart)
- lockend = lockstart + root->fs_info->sectorsize;
+ lockend = lockstart + fs_info->sectorsize;
lockend--;
len = lockend - lockstart + 1;
diff --git a/fs/btrfs/free-space-cache.c b/fs/btrfs/free-space-cache.c
index 8424617..e937636 100644
--- a/fs/btrfs/free-space-cache.c
+++ b/fs/btrfs/free-space-cache.c
@@ -47,6 +47,7 @@ static struct inode *__lookup_free_space_inode(struct btrfs_root *root,
struct btrfs_path *path,
u64 offset)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_key key;
struct btrfs_key location;
struct btrfs_disk_key disk_key;
@@ -74,7 +75,7 @@ static struct inode *__lookup_free_space_inode(struct btrfs_root *root,
btrfs_disk_key_to_cpu(&location, &disk_key);
btrfs_release_path(path);
- inode = btrfs_iget(root->fs_info->sb, &location, root, NULL);
+ inode = btrfs_iget(fs_info->sb, &location, root, NULL);
if (IS_ERR(inode))
return inode;
if (is_bad_inode(inode)) {
@@ -94,6 +95,7 @@ struct inode *lookup_free_space_inode(struct btrfs_root *root,
*block_group, struct btrfs_path *path)
{
struct inode *inode = NULL;
+ struct btrfs_fs_info *fs_info = root->fs_info;
u32 flags = BTRFS_INODE_NODATASUM | BTRFS_INODE_NODATACOW;
spin_lock(&block_group->lock);
@@ -110,8 +112,7 @@ struct inode *lookup_free_space_inode(struct btrfs_root *root,
spin_lock(&block_group->lock);
if (!((BTRFS_I(inode)->flags & flags) == flags)) {
- btrfs_info(root->fs_info,
- "Old style space inode found, converting.");
+ btrfs_info(fs_info, "Old style space inode found, converting.");
BTRFS_I(inode)->flags |= BTRFS_INODE_NODATASUM |
BTRFS_INODE_NODATACOW;
block_group->disk_cache_state = BTRFS_DC_CLEAR;
@@ -206,12 +207,13 @@ int create_free_space_inode(struct btrfs_root *root,
int btrfs_check_trunc_cache_free_space(struct btrfs_root *root,
struct btrfs_block_rsv *rsv)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
u64 needed_bytes;
int ret;
/* 1 for slack space, 1 for updating the inode */
- needed_bytes = btrfs_calc_trunc_metadata_size(root->fs_info, 1) +
- btrfs_calc_trans_metadata_size(root->fs_info, 1);
+ needed_bytes = btrfs_calc_trunc_metadata_size(fs_info, 1) +
+ btrfs_calc_trans_metadata_size(fs_info, 1);
spin_lock(&rsv->lock);
if (rsv->reserved < needed_bytes)
@@ -667,6 +669,7 @@ static int __load_free_space_cache(struct btrfs_root *root, struct inode *inode,
struct btrfs_free_space_ctl *ctl,
struct btrfs_path *path, u64 offset)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_free_space_header *header;
struct extent_buffer *leaf;
struct btrfs_io_ctl io_ctl;
@@ -706,16 +709,16 @@ static int __load_free_space_cache(struct btrfs_root *root, struct inode *inode,
btrfs_release_path(path);
if (!BTRFS_I(inode)->generation) {
- btrfs_info(root->fs_info,
+ btrfs_info(fs_info,
"The free space cache file (%llu) is invalid. skip it\n",
offset);
return 0;
}
if (BTRFS_I(inode)->generation != generation) {
- btrfs_err(root->fs_info,
- "free space inode generation (%llu) did not match free space cache generation (%llu)",
- BTRFS_I(inode)->generation, generation);
+ btrfs_err(fs_info,
+ "free space inode generation (%llu) did not match free space cache generation (%llu)",
+ BTRFS_I(inode)->generation, generation);
return 0;
}
@@ -764,7 +767,7 @@ static int __load_free_space_cache(struct btrfs_root *root, struct inode *inode,
ret = link_free_space(ctl, e);
spin_unlock(&ctl->tree_lock);
if (ret) {
- btrfs_err(root->fs_info,
+ btrfs_err(fs_info,
"Duplicate entries in free space cache, dumping");
kmem_cache_free(btrfs_free_space_cachep, e);
goto free_cache;
@@ -784,7 +787,7 @@ static int __load_free_space_cache(struct btrfs_root *root, struct inode *inode,
ctl->op->recalc_thresholds(ctl);
spin_unlock(&ctl->tree_lock);
if (ret) {
- btrfs_err(root->fs_info,
+ btrfs_err(fs_info,
"Duplicate entries in free space cache, dumping");
kmem_cache_free(btrfs_free_space_cachep, e);
goto free_cache;
@@ -1036,6 +1039,7 @@ write_pinned_extent_entries(struct btrfs_root *root,
struct btrfs_io_ctl *io_ctl,
int *entries)
{
+ struct btrfs_fs_info *fs_info;
u64 start, extent_start, extent_end, len;
struct extent_io_tree *unpin = NULL;
int ret;
@@ -1043,6 +1047,8 @@ write_pinned_extent_entries(struct btrfs_root *root,
if (!block_group)
return 0;
+ fs_info = block_group->fs_info;
+
/*
* We want to add any pinned extents to our free space cache
* so we don't leak the space
@@ -1050,7 +1056,7 @@ write_pinned_extent_entries(struct btrfs_root *root,
* We shouldn't have switched the pinned extents yet so this is the
* right one
*/
- unpin = root->fs_info->pinned_extents;
+ unpin = fs_info->pinned_extents;
start = block_group->key.objectid;
@@ -1141,12 +1147,15 @@ int btrfs_wait_cache_io(struct btrfs_root *root,
{
int ret;
struct inode *inode = io_ctl->inode;
+ struct btrfs_fs_info *fs_info;
if (!inode)
return 0;
+ fs_info = btrfs_sb(inode->i_sb);
+
if (block_group)
- root = root->fs_info->tree_root;
+ root = fs_info->tree_root;
/* Flush the dirty pages in the cache file. */
ret = flush_dirty_cache(inode);
@@ -1163,9 +1172,9 @@ int btrfs_wait_cache_io(struct btrfs_root *root,
BTRFS_I(inode)->generation = 0;
if (block_group) {
#ifdef DEBUG
- btrfs_err(root->fs_info,
- "failed to write free space cache for block group %llu",
- block_group->key.objectid);
+ btrfs_err(fs_info,
+ "failed to write free space cache for block group %llu",
+ block_group->key.objectid);
#endif
}
}
@@ -1376,9 +1385,9 @@ int btrfs_write_out_cache(struct btrfs_fs_info *fs_info,
path, block_group->key.objectid);
if (ret) {
#ifdef DEBUG
- btrfs_err(root->fs_info,
- "failed to write free space cache for block group %llu",
- block_group->key.objectid);
+ btrfs_err(fs_info,
+ "failed to write free space cache for block group %llu",
+ block_group->key.objectid);
#endif
spin_lock(&block_group->lock);
block_group->disk_cache_state = BTRFS_DC_ERROR;
@@ -1965,11 +1974,11 @@ static bool use_bitmap(struct btrfs_free_space_ctl *ctl,
struct btrfs_free_space *info)
{
struct btrfs_block_group_cache *block_group = ctl->private;
+ struct btrfs_fs_info *fs_info = block_group->fs_info;
bool forced = false;
#ifdef CONFIG_BTRFS_DEBUG
- if (btrfs_should_fragment_free_space(block_group->fs_info->extent_root,
- block_group))
+ if (btrfs_should_fragment_free_space(fs_info->extent_root, block_group))
forced = true;
#endif
@@ -1985,7 +1994,7 @@ static bool use_bitmap(struct btrfs_free_space_ctl *ctl,
* of cache left then go ahead an dadd them, no sense in adding
* the overhead of a bitmap if we don't have to.
*/
- if (info->bytes <= block_group->fs_info->sectorsize * 4) {
+ if (info->bytes <= fs_info->sectorsize * 4) {
if (ctl->free_extents * 2 <= ctl->extents_thresh)
return false;
} else {
@@ -2444,6 +2453,7 @@ int btrfs_remove_free_space(struct btrfs_block_group_cache *block_group,
void btrfs_dump_free_space(struct btrfs_block_group_cache *block_group,
u64 bytes)
{
+ struct btrfs_fs_info *fs_info = block_group->fs_info;
struct btrfs_free_space_ctl *ctl = block_group->free_space_ctl;
struct btrfs_free_space *info;
struct rb_node *n;
@@ -2453,23 +2463,23 @@ void btrfs_dump_free_space(struct btrfs_block_group_cache *block_group,
info = rb_entry(n, struct btrfs_free_space, offset_index);
if (info->bytes >= bytes && !block_group->ro)
count++;
- btrfs_crit(block_group->fs_info,
- "entry offset %llu, bytes %llu, bitmap %s",
+ btrfs_crit(fs_info, "entry offset %llu, bytes %llu, bitmap %s",
info->offset, info->bytes,
(info->bitmap) ? "yes" : "no");
}
- btrfs_info(block_group->fs_info, "block group has cluster?: %s",
+ btrfs_info(fs_info, "block group has cluster?: %s",
list_empty(&block_group->cluster_list) ? "no" : "yes");
- btrfs_info(block_group->fs_info,
+ btrfs_info(fs_info,
"%d blocks of free space at or bigger than bytes is", count);
}
void btrfs_init_free_space_ctl(struct btrfs_block_group_cache *block_group)
{
+ struct btrfs_fs_info *fs_info = block_group->fs_info;
struct btrfs_free_space_ctl *ctl = block_group->free_space_ctl;
spin_lock_init(&ctl->tree_lock);
- ctl->unit = block_group->fs_info->sectorsize;
+ ctl->unit = fs_info->sectorsize;
ctl->start = block_group->key.objectid;
ctl->private = block_group;
ctl->op = &free_space_op;
@@ -3014,6 +3024,7 @@ int btrfs_find_space_cluster(struct btrfs_root *root,
u64 offset, u64 bytes, u64 empty_size)
{
struct btrfs_free_space_ctl *ctl = block_group->free_space_ctl;
+ struct btrfs_fs_info *fs_info = block_group->fs_info;
struct btrfs_free_space *entry, *tmp;
LIST_HEAD(bitmaps);
u64 min_bytes;
@@ -3026,14 +3037,14 @@ int btrfs_find_space_cluster(struct btrfs_root *root,
* For metadata, allow allocates with smaller extents. For
* data, keep it dense.
*/
- if (btrfs_test_opt(root->fs_info, SSD_SPREAD)) {
+ if (btrfs_test_opt(fs_info, SSD_SPREAD)) {
cont1_bytes = min_bytes = bytes + empty_size;
} else if (block_group->flags & BTRFS_BLOCK_GROUP_METADATA) {
cont1_bytes = bytes;
- min_bytes = block_group->fs_info->sectorsize;
+ min_bytes = fs_info->sectorsize;
} else {
cont1_bytes = max(bytes, (bytes + empty_size) >> 2);
- min_bytes = block_group->fs_info->sectorsize;
+ min_bytes = fs_info->sectorsize;
}
spin_lock(&ctl->tree_lock);
@@ -3318,6 +3329,7 @@ void btrfs_get_block_group_trimming(struct btrfs_block_group_cache *cache)
void btrfs_put_block_group_trimming(struct btrfs_block_group_cache *block_group)
{
+ struct btrfs_fs_info *fs_info = block_group->fs_info;
struct extent_map_tree *em_tree;
struct extent_map *em;
bool cleanup;
@@ -3328,8 +3340,8 @@ void btrfs_put_block_group_trimming(struct btrfs_block_group_cache *block_group)
spin_unlock(&block_group->lock);
if (cleanup) {
- lock_chunks(block_group->fs_info);
- em_tree = &block_group->fs_info->mapping_tree.map_tree;
+ lock_chunks(fs_info);
+ em_tree = &fs_info->mapping_tree.map_tree;
write_lock(&em_tree->lock);
em = lookup_extent_mapping(em_tree, block_group->key.objectid,
1);
@@ -3340,7 +3352,7 @@ void btrfs_put_block_group_trimming(struct btrfs_block_group_cache *block_group)
*/
remove_extent_mapping(em_tree, em);
write_unlock(&em_tree->lock);
- unlock_chunks(block_group->fs_info);
+ unlock_chunks(fs_info);
/* once for us and once for the tree */
free_extent_map(em);
@@ -3470,7 +3482,7 @@ int load_free_ino_cache(struct btrfs_fs_info *fs_info, struct btrfs_root *root)
int ret = 0;
u64 root_gen = btrfs_root_generation(&root->root_item);
- if (!btrfs_test_opt(root->fs_info, INODE_MAP_CACHE))
+ if (!btrfs_test_opt(fs_info, INODE_MAP_CACHE))
return 0;
/*
@@ -3509,12 +3521,13 @@ int btrfs_write_out_ino_cache(struct btrfs_root *root,
struct btrfs_path *path,
struct inode *inode)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_free_space_ctl *ctl = root->free_ino_ctl;
int ret;
struct btrfs_io_ctl io_ctl;
bool release_metadata = true;
- if (!btrfs_test_opt(root->fs_info, INODE_MAP_CACHE))
+ if (!btrfs_test_opt(fs_info, INODE_MAP_CACHE))
return 0;
memset(&io_ctl, 0, sizeof(io_ctl));
@@ -3535,9 +3548,9 @@ int btrfs_write_out_ino_cache(struct btrfs_root *root,
if (release_metadata)
btrfs_delalloc_release_metadata(inode, inode->i_size);
#ifdef DEBUG
- btrfs_err(root->fs_info,
- "failed to write free ino cache for root %llu",
- root->root_key.objectid);
+ btrfs_err(fs_info,
+ "failed to write free ino cache for root %llu",
+ root->root_key.objectid);
#endif
}
diff --git a/fs/btrfs/free-space-tree.c b/fs/btrfs/free-space-tree.c
index 9dfb535..2a08f51 100644
--- a/fs/btrfs/free-space-tree.c
+++ b/fs/btrfs/free-space-tree.c
@@ -189,7 +189,7 @@ int convert_free_space_to_bitmaps(struct btrfs_trans_handle *trans,
int ret;
bitmap_size = free_space_bitmap_size(block_group->key.offset,
- block_group->fs_info->sectorsize);
+ fs_info->sectorsize);
bitmap = alloc_bitmap(bitmap_size);
if (!bitmap) {
ret = -ENOMEM;
@@ -227,9 +227,9 @@ int convert_free_space_to_bitmaps(struct btrfs_trans_handle *trans,
ASSERT(found_key.objectid + found_key.offset <= end);
first = div_u64(found_key.objectid - start,
- block_group->fs_info->sectorsize);
+ fs_info->sectorsize);
last = div_u64(found_key.objectid + found_key.offset - start,
- block_group->fs_info->sectorsize);
+ fs_info->sectorsize);
le_bitmap_set(bitmap, first, last - first);
extent_count++;
@@ -270,7 +270,7 @@ int convert_free_space_to_bitmaps(struct btrfs_trans_handle *trans,
}
bitmap_cursor = bitmap;
- bitmap_range = block_group->fs_info->sectorsize * BTRFS_FREE_SPACE_BITMAP_BITS;
+ bitmap_range = fs_info->sectorsize * BTRFS_FREE_SPACE_BITMAP_BITS;
i = start;
while (i < end) {
unsigned long ptr;
@@ -279,7 +279,7 @@ int convert_free_space_to_bitmaps(struct btrfs_trans_handle *trans,
extent_size = min(end - i, bitmap_range);
data_size = free_space_bitmap_size(extent_size,
- block_group->fs_info->sectorsize);
+ fs_info->sectorsize);
key.objectid = i;
key.type = BTRFS_FREE_SPACE_BITMAP_KEY;
@@ -330,7 +330,7 @@ int convert_free_space_to_extents(struct btrfs_trans_handle *trans,
int ret;
bitmap_size = free_space_bitmap_size(block_group->key.offset,
- block_group->fs_info->sectorsize);
+ fs_info->sectorsize);
bitmap = alloc_bitmap(bitmap_size);
if (!bitmap) {
ret = -ENOMEM;
@@ -370,11 +370,11 @@ int convert_free_space_to_extents(struct btrfs_trans_handle *trans,
ASSERT(found_key.objectid + found_key.offset <= end);
bitmap_pos = div_u64(found_key.objectid - start,
- block_group->fs_info->sectorsize *
+ fs_info->sectorsize *
BITS_PER_BYTE);
bitmap_cursor = bitmap + bitmap_pos;
data_size = free_space_bitmap_size(found_key.offset,
- block_group->fs_info->sectorsize);
+ fs_info->sectorsize);
ptr = btrfs_item_ptr_offset(leaf, path->slots[0] - 1);
read_extent_buffer(leaf, bitmap_cursor, ptr,
@@ -425,7 +425,7 @@ int convert_free_space_to_extents(struct btrfs_trans_handle *trans,
extent_count++;
}
prev_bit = bit;
- offset += block_group->fs_info->sectorsize;
+ offset += fs_info->sectorsize;
bitnr++;
}
if (prev_bit == 1) {
@@ -526,6 +526,7 @@ static void free_space_set_bits(struct btrfs_block_group_cache *block_group,
struct btrfs_path *path, u64 *start, u64 *size,
int bit)
{
+ struct btrfs_fs_info *fs_info = block_group->fs_info;
struct extent_buffer *leaf;
struct btrfs_key key;
u64 end = *start + *size;
@@ -545,10 +546,8 @@ static void free_space_set_bits(struct btrfs_block_group_cache *block_group,
end = found_end;
ptr = btrfs_item_ptr_offset(leaf, path->slots[0]);
- first = div_u64(*start - found_start,
- block_group->fs_info->sectorsize);
- last = div_u64(end - found_start,
- block_group->fs_info->sectorsize);
+ first = div_u64(*start - found_start, fs_info->sectorsize);
+ last = div_u64(end - found_start, fs_info->sectorsize);
if (bit)
extent_buffer_bitmap_set(leaf, ptr, first, last - first);
else
@@ -1270,7 +1269,7 @@ int btrfs_clear_free_space_tree(struct btrfs_fs_info *fs_info)
list_del(&free_space_root->dirty_list);
btrfs_tree_lock(free_space_root->node);
- clean_tree_block(trans, tree_root->fs_info, free_space_root->node);
+ clean_tree_block(trans, fs_info, free_space_root->node);
btrfs_tree_unlock(free_space_root->node);
btrfs_free_tree_block(trans, free_space_root, free_space_root->node,
0, 1);
@@ -1476,7 +1475,7 @@ static int load_free_space_bitmaps(struct btrfs_caching_control *caching_ctl,
extent_count++;
}
prev_bit = bit;
- offset += block_group->fs_info->sectorsize;
+ offset += fs_info->sectorsize;
}
}
if (prev_bit == 1) {
diff --git a/fs/btrfs/inode-item.c b/fs/btrfs/inode-item.c
index b8acc07..47270a3 100644
--- a/fs/btrfs/inode-item.c
+++ b/fs/btrfs/inode-item.c
@@ -328,6 +328,7 @@ int btrfs_insert_inode_ref(struct btrfs_trans_handle *trans,
const char *name, int name_len,
u64 inode_objectid, u64 ref_objectid, u64 index)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_path *path;
struct btrfs_key key;
struct btrfs_inode_ref *ref;
@@ -384,7 +385,7 @@ int btrfs_insert_inode_ref(struct btrfs_trans_handle *trans,
btrfs_free_path(path);
if (ret == -EMLINK) {
- struct btrfs_super_block *disk_super = root->fs_info->super_copy;
+ struct btrfs_super_block *disk_super = fs_info->super_copy;
/* We ran out of space in the ref array. Need to
* add an extended ref. */
if (btrfs_super_incompat_flags(disk_super)
diff --git a/fs/btrfs/inode-map.c b/fs/btrfs/inode-map.c
index 0c49267..79921f6 100644
--- a/fs/btrfs/inode-map.c
+++ b/fs/btrfs/inode-map.c
@@ -38,7 +38,7 @@ static int caching_kthread(void *data)
int slot;
int ret;
- if (!btrfs_test_opt(root->fs_info, INODE_MAP_CACHE))
+ if (!btrfs_test_opt(fs_info, INODE_MAP_CACHE))
return 0;
path = btrfs_alloc_path();
@@ -180,7 +180,7 @@ static void start_caching(struct btrfs_root *root)
if (IS_ERR(tsk)) {
btrfs_warn(fs_info, "failed to start inode caching task");
btrfs_clear_pending_and_info(fs_info, INODE_MAP_CACHE,
- "disabling inode map caching");
+ "disabling inode map caching");
}
}
@@ -395,6 +395,7 @@ void btrfs_init_free_ino_ctl(struct btrfs_root *root)
int btrfs_save_ino_cache(struct btrfs_root *root,
struct btrfs_trans_handle *trans)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_free_space_ctl *ctl = root->free_ino_ctl;
struct btrfs_path *path;
struct inode *inode;
@@ -415,7 +416,7 @@ int btrfs_save_ino_cache(struct btrfs_root *root,
if (btrfs_root_refs(&root->root_item) == 0)
return 0;
- if (!btrfs_test_opt(root->fs_info, INODE_MAP_CACHE))
+ if (!btrfs_test_opt(fs_info, INODE_MAP_CACHE))
return 0;
path = btrfs_alloc_path();
@@ -423,7 +424,7 @@ int btrfs_save_ino_cache(struct btrfs_root *root,
return -ENOMEM;
rsv = trans->block_rsv;
- trans->block_rsv = &root->fs_info->trans_block_rsv;
+ trans->block_rsv = &fs_info->trans_block_rsv;
num_bytes = trans->bytes_reserved;
/*
@@ -433,15 +434,14 @@ int btrfs_save_ino_cache(struct btrfs_root *root,
* 1 item for free space object
* 3 items for pre-allocation
*/
- trans->bytes_reserved = btrfs_calc_trans_metadata_size(root->fs_info,
- 10);
+ trans->bytes_reserved = btrfs_calc_trans_metadata_size(fs_info, 10);
ret = btrfs_block_rsv_add(root, trans->block_rsv,
trans->bytes_reserved,
BTRFS_RESERVE_NO_FLUSH);
if (ret)
goto out;
- trace_btrfs_space_reservation(root->fs_info, "ino_cache",
- trans->transid, trans->bytes_reserved, 1);
+ trace_btrfs_space_reservation(fs_info, "ino_cache", trans->transid,
+ trans->bytes_reserved, 1);
again:
inode = lookup_free_ino_inode(root, path);
if (IS_ERR(inode) && (PTR_ERR(inode) != -ENOENT || retry)) {
@@ -507,8 +507,8 @@ int btrfs_save_ino_cache(struct btrfs_root *root,
out_put:
iput(inode);
out_release:
- trace_btrfs_space_reservation(root->fs_info, "ino_cache",
- trans->transid, trans->bytes_reserved, 0);
+ trace_btrfs_space_reservation(fs_info, "ino_cache", trans->transid,
+ trans->bytes_reserved, 0);
btrfs_block_rsv_release(root, trans->block_rsv, trans->bytes_reserved);
out:
trans->block_rsv = rsv;
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index d0a236f..677762e 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -249,11 +249,12 @@ static noinline int cow_file_range_inline(struct btrfs_root *root,
int compress_type,
struct page **compressed_pages)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_trans_handle *trans;
u64 isize = i_size_read(inode);
u64 actual_end = min(end + 1, isize);
u64 inline_len = actual_end - start;
- u64 aligned_end = ALIGN(end, root->fs_info->sectorsize);
+ u64 aligned_end = ALIGN(end, fs_info->sectorsize);
u64 data_len = inline_len;
int ret;
struct btrfs_path *path;
@@ -264,12 +265,12 @@ static noinline int cow_file_range_inline(struct btrfs_root *root,
data_len = compressed_size;
if (start > 0 ||
- actual_end > root->fs_info->sectorsize ||
- data_len > BTRFS_MAX_INLINE_DATA_SIZE(root->fs_info) ||
+ actual_end > fs_info->sectorsize ||
+ data_len > BTRFS_MAX_INLINE_DATA_SIZE(fs_info) ||
(!compressed_size &&
- (actual_end & (root->fs_info->sectorsize - 1)) == 0) ||
+ (actual_end & (fs_info->sectorsize - 1)) == 0) ||
end + 1 < isize ||
- data_len > root->fs_info->max_inline) {
+ data_len > fs_info->max_inline) {
return 1;
}
@@ -282,7 +283,7 @@ static noinline int cow_file_range_inline(struct btrfs_root *root,
btrfs_free_path(path);
return PTR_ERR(trans);
}
- trans->block_rsv = &root->fs_info->delalloc_block_rsv;
+ trans->block_rsv = &fs_info->delalloc_block_rsv;
if (compressed_size && compressed_pages)
extent_item_size = btrfs_file_extent_calc_inline_size(
@@ -372,15 +373,15 @@ static noinline int add_async_extent(struct async_cow *cow,
static inline int inode_need_compress(struct inode *inode)
{
- struct btrfs_root *root = BTRFS_I(inode)->root;
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
/* force compress */
- if (btrfs_test_opt(root->fs_info, FORCE_COMPRESS))
+ if (btrfs_test_opt(fs_info, FORCE_COMPRESS))
return 1;
/* bad compression ratios */
if (BTRFS_I(inode)->flags & BTRFS_INODE_NOCOMPRESS)
return 0;
- if (btrfs_test_opt(root->fs_info, COMPRESS) ||
+ if (btrfs_test_opt(fs_info, COMPRESS) ||
BTRFS_I(inode)->flags & BTRFS_INODE_COMPRESS ||
BTRFS_I(inode)->force_compress)
return 1;
@@ -410,9 +411,10 @@ static noinline void compress_file_range(struct inode *inode,
struct async_cow *async_cow,
int *num_added)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_root *root = BTRFS_I(inode)->root;
u64 num_bytes;
- u64 blocksize = root->fs_info->sectorsize;
+ u64 blocksize = fs_info->sectorsize;
u64 actual_end;
u64 isize = i_size_read(inode);
int ret = 0;
@@ -425,7 +427,7 @@ static noinline void compress_file_range(struct inode *inode,
unsigned long max_uncompressed = SZ_128K;
int i;
int will_compress;
- int compress_type = root->fs_info->compress_type;
+ int compress_type = fs_info->compress_type;
int redirty = 0;
/* if this is a small write inside eof, kick off a defrag */
@@ -624,7 +626,7 @@ static noinline void compress_file_range(struct inode *inode,
nr_pages_ret = 0;
/* flag the file so we don't compress in the future */
- if (!btrfs_test_opt(root->fs_info, FORCE_COMPRESS) &&
+ if (!btrfs_test_opt(fs_info, FORCE_COMPRESS) &&
!(BTRFS_I(inode)->force_compress)) {
BTRFS_I(inode)->flags |= BTRFS_INODE_NOCOMPRESS;
}
@@ -682,6 +684,7 @@ static void free_async_extent_pages(struct async_extent *async_extent)
static noinline void submit_compressed_extents(struct inode *inode,
struct async_cow *async_cow)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct async_extent *async_extent;
u64 alloc_hint = 0;
struct btrfs_key ins;
@@ -794,7 +797,7 @@ static noinline void submit_compressed_extents(struct inode *inode,
em->block_len = ins.offset;
em->orig_block_len = ins.offset;
em->ram_bytes = async_extent->ram_size;
- em->bdev = root->fs_info->fs_devices->latest_bdev;
+ em->bdev = fs_info->fs_devices->latest_bdev;
em->compress_type = async_extent->compress_type;
set_bit(EXTENT_FLAG_PINNED, &em->flags);
set_bit(EXTENT_FLAG_COMPRESSED, &em->flags);
@@ -829,7 +832,7 @@ static noinline void submit_compressed_extents(struct inode *inode,
async_extent->ram_size - 1, 0);
goto out_free_reserve;
}
- btrfs_dec_block_group_reservations(root->fs_info, ins.objectid);
+ btrfs_dec_block_group_reservations(fs_info, ins.objectid);
/*
* clear dirty, set writeback and unlock the pages.
@@ -870,7 +873,7 @@ static noinline void submit_compressed_extents(struct inode *inode,
}
return;
out_free_reserve:
- btrfs_dec_block_group_reservations(root->fs_info, ins.objectid);
+ btrfs_dec_block_group_reservations(fs_info, ins.objectid);
btrfs_free_reserved_extent(root, ins.objectid, ins.offset, 1);
out_free:
extent_clear_unlock_delalloc(inode, async_extent->start,
@@ -939,13 +942,14 @@ static noinline int cow_file_range(struct inode *inode,
int *page_started, unsigned long *nr_written,
int unlock, struct btrfs_dedupe_hash *hash)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_root *root = BTRFS_I(inode)->root;
u64 alloc_hint = 0;
u64 num_bytes;
unsigned long ram_size;
u64 disk_num_bytes;
u64 cur_alloc_size;
- u64 blocksize = root->fs_info->sectorsize;
+ u64 blocksize = fs_info->sectorsize;
struct btrfs_key ins;
struct extent_map *em;
struct extent_map_tree *em_tree = &BTRFS_I(inode)->extent_tree;
@@ -989,7 +993,7 @@ static noinline int cow_file_range(struct inode *inode,
}
BUG_ON(disk_num_bytes >
- btrfs_super_total_bytes(root->fs_info->super_copy));
+ btrfs_super_total_bytes(fs_info->super_copy));
alloc_hint = get_extent_allocation_hint(inode, start, num_bytes);
btrfs_drop_extent_cache(inode, start, start + num_bytes - 1, 0);
@@ -999,8 +1003,7 @@ static noinline int cow_file_range(struct inode *inode,
cur_alloc_size = disk_num_bytes;
ret = btrfs_reserve_extent(root, cur_alloc_size, cur_alloc_size,
- root->fs_info->sectorsize, 0,
- alloc_hint,
+ fs_info->sectorsize, 0, alloc_hint,
&ins, 1, 1);
if (ret < 0)
goto out_unlock;
@@ -1021,7 +1024,7 @@ static noinline int cow_file_range(struct inode *inode,
em->block_len = ins.offset;
em->orig_block_len = ins.offset;
em->ram_bytes = ram_size;
- em->bdev = root->fs_info->fs_devices->latest_bdev;
+ em->bdev = fs_info->fs_devices->latest_bdev;
set_bit(EXTENT_FLAG_PINNED, &em->flags);
em->generation = -1;
@@ -1053,7 +1056,7 @@ static noinline int cow_file_range(struct inode *inode,
goto out_drop_extent_cache;
}
- btrfs_dec_block_group_reservations(root->fs_info, ins.objectid);
+ btrfs_dec_block_group_reservations(fs_info, ins.objectid);
if (disk_num_bytes < cur_alloc_size)
break;
@@ -1084,7 +1087,7 @@ static noinline int cow_file_range(struct inode *inode,
out_drop_extent_cache:
btrfs_drop_extent_cache(inode, start, start + ram_size - 1, 0);
out_reserve:
- btrfs_dec_block_group_reservations(root->fs_info, ins.objectid);
+ btrfs_dec_block_group_reservations(fs_info, ins.objectid);
btrfs_free_reserved_extent(root, ins.objectid, ins.offset, 1);
out_unlock:
extent_clear_unlock_delalloc(inode, start, end, delalloc_end,
@@ -1119,6 +1122,7 @@ static noinline void async_cow_start(struct btrfs_work *work)
*/
static noinline void async_cow_submit(struct btrfs_work *work)
{
+ struct btrfs_fs_info *fs_info;
struct async_cow *async_cow;
struct btrfs_root *root;
unsigned long nr_pages;
@@ -1126,16 +1130,17 @@ static noinline void async_cow_submit(struct btrfs_work *work)
async_cow = container_of(work, struct async_cow, work);
root = async_cow->root;
+ fs_info = root->fs_info;
nr_pages = (async_cow->end - async_cow->start + PAGE_SIZE) >>
PAGE_SHIFT;
/*
* atomic_sub_return implies a barrier for waitqueue_active
*/
- if (atomic_sub_return(nr_pages, &root->fs_info->async_delalloc_pages) <
+ if (atomic_sub_return(nr_pages, &fs_info->async_delalloc_pages) <
5 * SZ_1M &&
- waitqueue_active(&root->fs_info->async_submit_wait))
- wake_up(&root->fs_info->async_submit_wait);
+ waitqueue_active(&fs_info->async_submit_wait))
+ wake_up(&fs_info->async_submit_wait);
if (async_cow->inode)
submit_compressed_extents(async_cow->inode, async_cow);
@@ -1154,6 +1159,7 @@ static int cow_file_range_async(struct inode *inode, struct page *locked_page,
u64 start, u64 end, int *page_started,
unsigned long *nr_written)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct async_cow *async_cow;
struct btrfs_root *root = BTRFS_I(inode)->root;
unsigned long nr_pages;
@@ -1171,7 +1177,7 @@ static int cow_file_range_async(struct inode *inode, struct page *locked_page,
async_cow->start = start;
if (BTRFS_I(inode)->flags & BTRFS_INODE_NOCOMPRESS &&
- !btrfs_test_opt(root->fs_info, FORCE_COMPRESS))
+ !btrfs_test_opt(fs_info, FORCE_COMPRESS))
cur_end = end;
else
cur_end = min(end, start + SZ_512K - 1);
@@ -1186,22 +1192,21 @@ static int cow_file_range_async(struct inode *inode, struct page *locked_page,
nr_pages = (cur_end - start + PAGE_SIZE) >>
PAGE_SHIFT;
- atomic_add(nr_pages, &root->fs_info->async_delalloc_pages);
+ atomic_add(nr_pages, &fs_info->async_delalloc_pages);
- btrfs_queue_work(root->fs_info->delalloc_workers,
- &async_cow->work);
+ btrfs_queue_work(fs_info->delalloc_workers, &async_cow->work);
- if (atomic_read(&root->fs_info->async_delalloc_pages) > limit) {
- wait_event(root->fs_info->async_submit_wait,
- (atomic_read(&root->fs_info->async_delalloc_pages) <
- limit));
+ if (atomic_read(&fs_info->async_delalloc_pages) > limit) {
+ wait_event(fs_info->async_submit_wait,
+ (atomic_read(&fs_info->async_delalloc_pages) <
+ limit));
}
- while (atomic_read(&root->fs_info->async_submit_draining) &&
- atomic_read(&root->fs_info->async_delalloc_pages)) {
- wait_event(root->fs_info->async_submit_wait,
- (atomic_read(&root->fs_info->async_delalloc_pages) ==
- 0));
+ while (atomic_read(&fs_info->async_submit_draining) &&
+ atomic_read(&fs_info->async_delalloc_pages)) {
+ wait_event(fs_info->async_submit_wait,
+ (atomic_read(&fs_info->async_delalloc_pages) ==
+ 0));
}
*nr_written += nr_pages;
@@ -1214,11 +1219,12 @@ static int cow_file_range_async(struct inode *inode, struct page *locked_page,
static noinline int csum_exist_in_range(struct btrfs_root *root,
u64 bytenr, u64 num_bytes)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
int ret;
struct btrfs_ordered_sum *sums;
LIST_HEAD(list);
- ret = btrfs_lookup_csums_range(root->fs_info->csum_root, bytenr,
+ ret = btrfs_lookup_csums_range(fs_info->csum_root, bytenr,
bytenr + num_bytes - 1, &list, 0);
if (ret == 0 && list_empty(&list))
return 0;
@@ -1243,6 +1249,7 @@ static noinline int run_delalloc_nocow(struct inode *inode,
u64 start, u64 end, int *page_started, int force,
unsigned long *nr_written)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_root *root = BTRFS_I(inode)->root;
struct btrfs_trans_handle *trans;
struct extent_buffer *leaf;
@@ -1298,7 +1305,7 @@ static noinline int run_delalloc_nocow(struct inode *inode,
return PTR_ERR(trans);
}
- trans->block_rsv = &root->fs_info->delalloc_block_rsv;
+ trans->block_rsv = &fs_info->delalloc_block_rsv;
cow_start = (u64)-1;
cur_offset = start;
@@ -1399,8 +1406,7 @@ static noinline int run_delalloc_nocow(struct inode *inode,
*/
if (csum_exist_in_range(root, disk_bytenr, num_bytes))
goto out_check;
- if (!btrfs_inc_nocow_writers(root->fs_info,
- disk_bytenr))
+ if (!btrfs_inc_nocow_writers(fs_info, disk_bytenr))
goto out_check;
nocow = 1;
} else if (extent_type == BTRFS_FILE_EXTENT_INLINE) {
@@ -1408,7 +1414,7 @@ static noinline int run_delalloc_nocow(struct inode *inode,
btrfs_file_extent_inline_len(leaf,
path->slots[0], fi);
extent_end = ALIGN(extent_end,
- root->fs_info->sectorsize);
+ fs_info->sectorsize);
} else {
BUG_ON(1);
}
@@ -1418,8 +1424,7 @@ static noinline int run_delalloc_nocow(struct inode *inode,
if (!nolock && nocow)
btrfs_end_write_no_snapshoting(root);
if (nocow)
- btrfs_dec_nocow_writers(root->fs_info,
- disk_bytenr);
+ btrfs_dec_nocow_writers(fs_info, disk_bytenr);
goto next_slot;
}
if (!nocow) {
@@ -1442,7 +1447,7 @@ static noinline int run_delalloc_nocow(struct inode *inode,
if (!nolock && nocow)
btrfs_end_write_no_snapshoting(root);
if (nocow)
- btrfs_dec_nocow_writers(root->fs_info,
+ btrfs_dec_nocow_writers(fs_info,
disk_bytenr);
goto error;
}
@@ -1462,7 +1467,7 @@ static noinline int run_delalloc_nocow(struct inode *inode,
em->block_start = disk_bytenr;
em->orig_block_len = disk_num_bytes;
em->ram_bytes = ram_bytes;
- em->bdev = root->fs_info->fs_devices->latest_bdev;
+ em->bdev = fs_info->fs_devices->latest_bdev;
em->mod_start = em->start;
em->mod_len = em->len;
set_bit(EXTENT_FLAG_PINNED, &em->flags);
@@ -1487,7 +1492,7 @@ static noinline int run_delalloc_nocow(struct inode *inode,
ret = btrfs_add_ordered_extent(inode, cur_offset, disk_bytenr,
num_bytes, num_bytes, type);
if (nocow)
- btrfs_dec_nocow_writers(root->fs_info, disk_bytenr);
+ btrfs_dec_nocow_writers(fs_info, disk_bytenr);
BUG_ON(ret); /* -ENOMEM */
if (root->root_key.objectid ==
@@ -1694,6 +1699,8 @@ static void btrfs_merge_extent_hook(struct inode *inode,
static void btrfs_add_delalloc_inodes(struct btrfs_root *root,
struct inode *inode)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
+
spin_lock(&root->delalloc_lock);
if (list_empty(&BTRFS_I(inode)->delalloc_inodes)) {
list_add_tail(&BTRFS_I(inode)->delalloc_inodes,
@@ -1702,11 +1709,11 @@ static void btrfs_add_delalloc_inodes(struct btrfs_root *root,
&BTRFS_I(inode)->runtime_flags);
root->nr_delalloc_inodes++;
if (root->nr_delalloc_inodes == 1) {
- spin_lock(&root->fs_info->delalloc_root_lock);
+ spin_lock(&fs_info->delalloc_root_lock);
BUG_ON(!list_empty(&root->delalloc_root));
list_add_tail(&root->delalloc_root,
- &root->fs_info->delalloc_roots);
- spin_unlock(&root->fs_info->delalloc_root_lock);
+ &fs_info->delalloc_roots);
+ spin_unlock(&fs_info->delalloc_root_lock);
}
}
spin_unlock(&root->delalloc_lock);
@@ -1715,6 +1722,8 @@ static void btrfs_add_delalloc_inodes(struct btrfs_root *root,
static void btrfs_del_delalloc_inode(struct btrfs_root *root,
struct inode *inode)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
+
spin_lock(&root->delalloc_lock);
if (!list_empty(&BTRFS_I(inode)->delalloc_inodes)) {
list_del_init(&BTRFS_I(inode)->delalloc_inodes);
@@ -1722,10 +1731,10 @@ static void btrfs_del_delalloc_inode(struct btrfs_root *root,
&BTRFS_I(inode)->runtime_flags);
root->nr_delalloc_inodes--;
if (!root->nr_delalloc_inodes) {
- spin_lock(&root->fs_info->delalloc_root_lock);
+ spin_lock(&fs_info->delalloc_root_lock);
BUG_ON(list_empty(&root->delalloc_root));
list_del_init(&root->delalloc_root);
- spin_unlock(&root->fs_info->delalloc_root_lock);
+ spin_unlock(&fs_info->delalloc_root_lock);
}
}
spin_unlock(&root->delalloc_lock);
@@ -1740,6 +1749,8 @@ static void btrfs_set_bit_hook(struct inode *inode,
struct extent_state *state, unsigned *bits)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
+
if ((*bits & EXTENT_DEFRAG) && !(*bits & EXTENT_DELALLOC))
WARN_ON(1);
/*
@@ -1761,11 +1772,11 @@ static void btrfs_set_bit_hook(struct inode *inode,
}
/* For sanity tests */
- if (btrfs_is_testing(root->fs_info))
+ if (btrfs_is_testing(fs_info))
return;
- __percpu_counter_add(&root->fs_info->delalloc_bytes, len,
- root->fs_info->delalloc_batch);
+ __percpu_counter_add(&fs_info->delalloc_bytes, len,
+ fs_info->delalloc_batch);
spin_lock(&BTRFS_I(inode)->lock);
BTRFS_I(inode)->delalloc_bytes += len;
if (*bits & EXTENT_DEFRAG)
@@ -1784,6 +1795,7 @@ static void btrfs_clear_bit_hook(struct inode *inode,
struct extent_state *state,
unsigned *bits)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
u64 len = state->end + 1 - state->start;
u64 num_extents = div64_u64(len + BTRFS_MAX_EXTENT_SIZE -1,
BTRFS_MAX_EXTENT_SIZE);
@@ -1816,11 +1828,11 @@ static void btrfs_clear_bit_hook(struct inode *inode,
* error.
*/
if (*bits & EXTENT_DO_ACCOUNTING &&
- root != root->fs_info->tree_root)
+ root != fs_info->tree_root)
btrfs_delalloc_release_metadata(inode, len);
/* For sanity tests. */
- if (btrfs_is_testing(root->fs_info))
+ if (btrfs_is_testing(fs_info))
return;
if (root->root_key.objectid != BTRFS_DATA_RELOC_TREE_OBJECTID
@@ -1830,8 +1842,8 @@ static void btrfs_clear_bit_hook(struct inode *inode,
btrfs_free_reserved_data_space_noquota(inode,
state->start, len);
- __percpu_counter_add(&root->fs_info->delalloc_bytes, -len,
- root->fs_info->delalloc_batch);
+ __percpu_counter_add(&fs_info->delalloc_bytes, -len,
+ fs_info->delalloc_batch);
spin_lock(&BTRFS_I(inode)->lock);
BTRFS_I(inode)->delalloc_bytes -= len;
if (do_list && BTRFS_I(inode)->delalloc_bytes == 0 &&
@@ -1854,7 +1866,8 @@ int btrfs_merge_bio_hook(struct page *page, unsigned long offset,
size_t size, struct bio *bio,
unsigned long bio_flags)
{
- struct btrfs_root *root = BTRFS_I(page->mapping->host)->root;
+ struct inode *inode = page->mapping->host;
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
u64 logical = (u64)bio->bi_iter.bi_sector << 9;
u64 length = 0;
u64 map_length;
@@ -1865,8 +1878,8 @@ int btrfs_merge_bio_hook(struct page *page, unsigned long offset,
length = bio->bi_iter.bi_size;
map_length = length;
- ret = btrfs_map_block(root->fs_info, btrfs_op(bio), logical,
- &map_length, NULL, 0);
+ ret = btrfs_map_block(fs_info, btrfs_op(bio), logical, &map_length,
+ NULL, 0);
if (ret < 0)
return ret;
if (map_length < length + size)
@@ -1925,6 +1938,7 @@ static int btrfs_submit_bio_hook(struct inode *inode, struct bio *bio,
int mirror_num, unsigned long bio_flags,
u64 bio_offset)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_root *root = BTRFS_I(inode)->root;
enum btrfs_wq_endio_type metadata = BTRFS_WQ_ENDIO_DATA;
int ret = 0;
@@ -1937,7 +1951,7 @@ static int btrfs_submit_bio_hook(struct inode *inode, struct bio *bio,
metadata = BTRFS_WQ_ENDIO_FREE_SPACE;
if (bio_op(bio) != REQ_OP_WRITE) {
- ret = btrfs_bio_wq_end_io(root->fs_info, bio, metadata);
+ ret = btrfs_bio_wq_end_io(fs_info, bio, metadata);
if (ret)
goto out;
@@ -1957,11 +1971,10 @@ static int btrfs_submit_bio_hook(struct inode *inode, struct bio *bio,
if (root->root_key.objectid == BTRFS_DATA_RELOC_TREE_OBJECTID)
goto mapit;
/* we're doing a write, do the async checksumming */
- ret = btrfs_wq_submit_bio(BTRFS_I(inode)->root->fs_info,
- inode, bio, mirror_num,
- bio_flags, bio_offset,
- __btrfs_submit_bio_start,
- __btrfs_submit_bio_done);
+ ret = btrfs_wq_submit_bio(fs_info, inode, bio, mirror_num,
+ bio_flags, bio_offset,
+ __btrfs_submit_bio_start,
+ __btrfs_submit_bio_done);
goto out;
} else if (!skip_sum) {
ret = btrfs_csum_one_bio(root, inode, bio, 0, 0);
@@ -2091,8 +2104,8 @@ static void btrfs_writepage_fixup_worker(struct btrfs_work *work)
static int btrfs_writepage_start_hook(struct page *page, u64 start, u64 end)
{
struct inode *inode = page->mapping->host;
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_writepage_fixup *fixup;
- struct btrfs_root *root = BTRFS_I(inode)->root;
/* this page is properly in the ordered list */
if (TestClearPagePrivate2(page))
@@ -2110,7 +2123,7 @@ static int btrfs_writepage_start_hook(struct page *page, u64 start, u64 end)
btrfs_init_work(&fixup->work, btrfs_fixup_helper,
btrfs_writepage_fixup_worker, NULL, NULL);
fixup->page = page;
- btrfs_queue_work(root->fs_info->fixup_workers, &fixup->work);
+ btrfs_queue_work(fs_info->fixup_workers, &fixup->work);
return -EBUSY;
}
@@ -2294,7 +2307,6 @@ static noinline int record_one_backref(u64 inum, u64 offset, u64 root_id,
void *ctx)
{
struct btrfs_file_extent_item *extent;
- struct btrfs_fs_info *fs_info;
struct old_sa_defrag_extent *old = ctx;
struct new_sa_defrag_extent *new = old->new;
struct btrfs_path *path = new->path;
@@ -2303,6 +2315,7 @@ static noinline int record_one_backref(u64 inum, u64 offset, u64 root_id,
struct sa_defrag_extent_backref *backref;
struct extent_buffer *leaf;
struct inode *inode = new->inode;
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
int slot;
int ret;
u64 extent_offset;
@@ -2316,7 +2329,6 @@ static noinline int record_one_backref(u64 inum, u64 offset, u64 root_id,
key.type = BTRFS_ROOT_ITEM_KEY;
key.offset = (u64)-1;
- fs_info = BTRFS_I(inode)->root->fs_info;
root = btrfs_read_fs_root_no_name(fs_info, &key);
if (IS_ERR(root)) {
if (PTR_ERR(root) == -ENOENT)
@@ -2414,7 +2426,7 @@ static noinline int record_one_backref(u64 inum, u64 offset, u64 root_id,
static noinline bool record_extent_backrefs(struct btrfs_path *path,
struct new_sa_defrag_extent *new)
{
- struct btrfs_fs_info *fs_info = BTRFS_I(new->inode)->root->fs_info;
+ struct btrfs_fs_info *fs_info = btrfs_sb(new->inode->i_sb);
struct old_sa_defrag_extent *old, *tmp;
int ret;
@@ -2472,13 +2484,12 @@ static noinline int relink_extent_backref(struct btrfs_path *path,
struct btrfs_file_extent_item *item;
struct btrfs_ordered_extent *ordered;
struct btrfs_trans_handle *trans;
- struct btrfs_fs_info *fs_info;
struct btrfs_root *root;
struct btrfs_key key;
struct extent_buffer *leaf;
struct old_sa_defrag_extent *old = backref->old;
struct new_sa_defrag_extent *new = old->new;
- struct inode *src_inode = new->inode;
+ struct btrfs_fs_info *fs_info = btrfs_sb(new->inode->i_sb);
struct inode *inode;
struct extent_state *cached = NULL;
int ret = 0;
@@ -2499,7 +2510,6 @@ static noinline int relink_extent_backref(struct btrfs_path *path,
key.type = BTRFS_ROOT_ITEM_KEY;
key.offset = (u64)-1;
- fs_info = BTRFS_I(src_inode)->root->fs_info;
index = srcu_read_lock(&fs_info->subvol_srcu);
root = btrfs_read_fs_root_no_name(fs_info, &key);
@@ -2680,6 +2690,7 @@ static void free_sa_defrag_extent(struct new_sa_defrag_extent *new)
static void relink_file_extents(struct new_sa_defrag_extent *new)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(new->inode->i_sb);
struct btrfs_path *path;
struct sa_defrag_extent_backref *backref;
struct sa_defrag_extent_backref *prev = NULL;
@@ -2726,14 +2737,15 @@ static void relink_file_extents(struct new_sa_defrag_extent *new)
out:
free_sa_defrag_extent(new);
- atomic_dec(&root->fs_info->defrag_running);
- wake_up(&root->fs_info->transaction_wait);
+ atomic_dec(&fs_info->defrag_running);
+ wake_up(&fs_info->transaction_wait);
}
static struct new_sa_defrag_extent *
record_old_file_extents(struct inode *inode,
struct btrfs_ordered_extent *ordered)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_root *root = BTRFS_I(inode)->root;
struct btrfs_path *path;
struct btrfs_key key;
@@ -2832,7 +2844,7 @@ record_old_file_extents(struct inode *inode,
}
btrfs_free_path(path);
- atomic_inc(&root->fs_info->defrag_running);
+ atomic_inc(&fs_info->defrag_running);
return new;
@@ -2846,9 +2858,10 @@ record_old_file_extents(struct inode *inode,
static void btrfs_release_delalloc_bytes(struct btrfs_root *root,
u64 start, u64 len)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_block_group_cache *cache;
- cache = btrfs_lookup_block_group(root->fs_info, start);
+ cache = btrfs_lookup_block_group(fs_info, start);
ASSERT(cache);
spin_lock(&cache->lock);
@@ -2865,6 +2878,7 @@ static void btrfs_release_delalloc_bytes(struct btrfs_root *root,
static int btrfs_finish_ordered_io(struct btrfs_ordered_extent *ordered_extent)
{
struct inode *inode = ordered_extent->inode;
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_root *root = BTRFS_I(inode)->root;
struct btrfs_trans_handle *trans = NULL;
struct extent_io_tree *io_tree = &BTRFS_I(inode)->io_tree;
@@ -2915,7 +2929,7 @@ static int btrfs_finish_ordered_io(struct btrfs_ordered_extent *ordered_extent)
trans = NULL;
goto out;
}
- trans->block_rsv = &root->fs_info->delalloc_block_rsv;
+ trans->block_rsv = &fs_info->delalloc_block_rsv;
ret = btrfs_update_inode_fallback(trans, root, inode);
if (ret) /* -ENOMEM or corruption */
btrfs_abort_transaction(trans, ret);
@@ -2950,7 +2964,7 @@ static int btrfs_finish_ordered_io(struct btrfs_ordered_extent *ordered_extent)
goto out_unlock;
}
- trans->block_rsv = &root->fs_info->delalloc_block_rsv;
+ trans->block_rsv = &fs_info->delalloc_block_rsv;
if (test_bit(BTRFS_ORDERED_COMPRESSED, &ordered_extent->flags))
compress_type = ordered_extent->compress_type;
@@ -2961,7 +2975,7 @@ static int btrfs_finish_ordered_io(struct btrfs_ordered_extent *ordered_extent)
ordered_extent->file_offset +
logical_len);
} else {
- BUG_ON(root == root->fs_info->tree_root);
+ BUG_ON(root == fs_info->tree_root);
ret = insert_reserved_file_extent(trans, inode,
ordered_extent->file_offset,
ordered_extent->start,
@@ -2997,7 +3011,7 @@ static int btrfs_finish_ordered_io(struct btrfs_ordered_extent *ordered_extent)
ordered_extent->file_offset +
ordered_extent->len - 1, &cached_state, GFP_NOFS);
out:
- if (root != root->fs_info->tree_root)
+ if (root != fs_info->tree_root)
btrfs_delalloc_release_metadata(inode, ordered_extent->len);
if (trans)
btrfs_end_transaction(trans, root);
@@ -3039,7 +3053,7 @@ static int btrfs_finish_ordered_io(struct btrfs_ordered_extent *ordered_extent)
if (new) {
if (ret) {
free_sa_defrag_extent(new);
- atomic_dec(&root->fs_info->defrag_running);
+ atomic_dec(&fs_info->defrag_running);
} else {
relink_file_extents(new);
}
@@ -3064,7 +3078,7 @@ static int btrfs_writepage_end_io_hook(struct page *page, u64 start, u64 end,
struct extent_state *state, int uptodate)
{
struct inode *inode = page->mapping->host;
- struct btrfs_root *root = BTRFS_I(inode)->root;
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_ordered_extent *ordered_extent = NULL;
struct btrfs_workqueue *wq;
btrfs_work_func_t func;
@@ -3077,10 +3091,10 @@ static int btrfs_writepage_end_io_hook(struct page *page, u64 start, u64 end,
return 0;
if (btrfs_is_free_space_inode(inode)) {
- wq = root->fs_info->endio_freespace_worker;
+ wq = fs_info->endio_freespace_worker;
func = btrfs_freespace_write_helper;
} else {
- wq = root->fs_info->endio_write_workers;
+ wq = fs_info->endio_write_workers;
func = btrfs_endio_write_helper;
}
@@ -3157,7 +3171,7 @@ static int btrfs_readpage_end_io_hook(struct btrfs_io_bio *io_bio,
void btrfs_add_delayed_iput(struct inode *inode)
{
- struct btrfs_fs_info *fs_info = BTRFS_I(inode)->root->fs_info;
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_inode *binode = BTRFS_I(inode);
if (atomic_add_unless(&inode->i_count, -1, 1))
@@ -3205,6 +3219,7 @@ void btrfs_run_delayed_iputs(struct btrfs_root *root)
void btrfs_orphan_commit_root(struct btrfs_trans_handle *trans,
struct btrfs_root *root)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_block_rsv *block_rsv;
int ret;
@@ -3229,7 +3244,7 @@ void btrfs_orphan_commit_root(struct btrfs_trans_handle *trans,
if (test_bit(BTRFS_ROOT_ORPHAN_ITEM_INSERTED, &root->state) &&
btrfs_root_refs(&root->root_item) > 0) {
- ret = btrfs_del_orphan_item(trans, root->fs_info->tree_root,
+ ret = btrfs_del_orphan_item(trans, fs_info->tree_root,
root->root_key.objectid);
if (ret)
btrfs_abort_transaction(trans, ret);
@@ -3253,6 +3268,7 @@ void btrfs_orphan_commit_root(struct btrfs_trans_handle *trans,
*/
int btrfs_orphan_add(struct btrfs_trans_handle *trans, struct inode *inode)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_root *root = BTRFS_I(inode)->root;
struct btrfs_block_rsv *block_rsv = NULL;
int reserve = 0;
@@ -3332,7 +3348,7 @@ int btrfs_orphan_add(struct btrfs_trans_handle *trans, struct inode *inode)
/* insert an orphan item to track subvolume contains orphan files */
if (insert >= 2) {
- ret = btrfs_insert_orphan_item(trans, root->fs_info->tree_root,
+ ret = btrfs_insert_orphan_item(trans, fs_info->tree_root,
root->root_key.objectid);
if (ret && ret != -EEXIST) {
btrfs_abort_transaction(trans, ret);
@@ -3383,6 +3399,7 @@ static int btrfs_orphan_del(struct btrfs_trans_handle *trans,
*/
int btrfs_orphan_cleanup(struct btrfs_root *root)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_path *path;
struct extent_buffer *leaf;
struct btrfs_key key, found_key;
@@ -3442,8 +3459,8 @@ int btrfs_orphan_cleanup(struct btrfs_root *root)
*/
if (found_key.offset == last_objectid) {
- btrfs_err(root->fs_info,
- "Error removing orphan entry, stopping orphan cleanup");
+ btrfs_err(fs_info,
+ "Error removing orphan entry, stopping orphan cleanup");
ret = -EINVAL;
goto out;
}
@@ -3453,12 +3470,12 @@ int btrfs_orphan_cleanup(struct btrfs_root *root)
found_key.objectid = found_key.offset;
found_key.type = BTRFS_INODE_ITEM_KEY;
found_key.offset = 0;
- inode = btrfs_iget(root->fs_info->sb, &found_key, root, NULL);
+ inode = btrfs_iget(fs_info->sb, &found_key, root, NULL);
ret = PTR_ERR_OR_ZERO(inode);
if (ret && ret != -ENOENT)
goto out;
- if (ret == -ENOENT && root == root->fs_info->tree_root) {
+ if (ret == -ENOENT && root == fs_info->tree_root) {
struct btrfs_root *dead_root;
struct btrfs_fs_info *fs_info = root->fs_info;
int is_dead_root = 0;
@@ -3500,8 +3517,8 @@ int btrfs_orphan_cleanup(struct btrfs_root *root)
ret = PTR_ERR(trans);
goto out;
}
- btrfs_debug(root->fs_info, "auto deleting %Lu",
- found_key.objectid);
+ btrfs_debug(fs_info, "auto deleting %Lu",
+ found_key.objectid);
ret = btrfs_del_orphan_item(trans, root,
found_key.objectid);
btrfs_end_transaction(trans, root);
@@ -3569,14 +3586,13 @@ int btrfs_orphan_cleanup(struct btrfs_root *root)
}
if (nr_unlink)
- btrfs_debug(root->fs_info, "unlinked %d orphans", nr_unlink);
+ btrfs_debug(fs_info, "unlinked %d orphans", nr_unlink);
if (nr_truncate)
- btrfs_debug(root->fs_info, "truncated %d orphans", nr_truncate);
+ btrfs_debug(fs_info, "truncated %d orphans", nr_truncate);
out:
if (ret)
- btrfs_err(root->fs_info,
- "could not do orphan cleanup %d", ret);
+ btrfs_err(fs_info, "could not do orphan cleanup %d", ret);
btrfs_free_path(path);
return ret;
}
@@ -3655,6 +3671,7 @@ static noinline int acls_after_inode_item(struct extent_buffer *leaf,
*/
static int btrfs_read_locked_inode(struct inode *inode)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_path *path;
struct extent_buffer *leaf;
struct btrfs_inode_item *inode_item;
@@ -3735,7 +3752,7 @@ static int btrfs_read_locked_inode(struct inode *inode)
* This is required for both inode re-read from disk and delayed inode
* in delayed_nodes_tree.
*/
- if (BTRFS_I(inode)->last_trans == root->fs_info->generation)
+ if (BTRFS_I(inode)->last_trans == fs_info->generation)
set_bit(BTRFS_INODE_NEEDS_FULL_SYNC,
&BTRFS_I(inode)->runtime_flags);
@@ -3801,7 +3818,7 @@ static int btrfs_read_locked_inode(struct inode *inode)
path->slots[0] = first_xattr_slot;
ret = btrfs_load_inode_props(inode, path);
if (ret)
- btrfs_err(root->fs_info,
+ btrfs_err(fs_info,
"error loading props for ino %llu (root %llu): %d",
btrfs_ino(inode),
root->root_key.objectid, ret);
@@ -3820,7 +3837,7 @@ static int btrfs_read_locked_inode(struct inode *inode)
break;
case S_IFDIR:
inode->i_fop = &btrfs_dir_file_operations;
- if (root == root->fs_info->tree_root)
+ if (root == fs_info->tree_root)
inode->i_op = &btrfs_dir_ro_inode_operations;
else
inode->i_op = &btrfs_dir_inode_operations;
@@ -3938,6 +3955,7 @@ static noinline int btrfs_update_inode_item(struct btrfs_trans_handle *trans,
noinline int btrfs_update_inode(struct btrfs_trans_handle *trans,
struct btrfs_root *root, struct inode *inode)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
int ret;
/*
@@ -3949,7 +3967,7 @@ noinline int btrfs_update_inode(struct btrfs_trans_handle *trans,
*/
if (!btrfs_is_free_space_inode(inode)
&& root->root_key.objectid != BTRFS_DATA_RELOC_TREE_OBJECTID
- && !test_bit(BTRFS_FS_LOG_RECOVERING, &root->fs_info->flags)) {
+ && !test_bit(BTRFS_FS_LOG_RECOVERING, &fs_info->flags)) {
btrfs_update_root_times(trans, root);
ret = btrfs_delayed_update_inode(trans, root, inode);
@@ -3983,6 +4001,7 @@ static int __btrfs_unlink_inode(struct btrfs_trans_handle *trans,
struct inode *dir, struct inode *inode,
const char *name, int name_len)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_path *path;
int ret = 0;
struct extent_buffer *leaf;
@@ -4037,7 +4056,7 @@ static int __btrfs_unlink_inode(struct btrfs_trans_handle *trans,
ret = btrfs_del_inode_ref(trans, root, name, name_len, ino,
dir_ino, &index);
if (ret) {
- btrfs_info(root->fs_info,
+ btrfs_info(fs_info,
"failed to delete reference to %.*s, inode %llu parent %llu",
name_len, name, ino, dir_ino);
btrfs_abort_transaction(trans, ret);
@@ -4149,6 +4168,7 @@ int btrfs_unlink_subvol(struct btrfs_trans_handle *trans,
struct inode *dir, u64 objectid,
const char *name, int name_len)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_path *path;
struct extent_buffer *leaf;
struct btrfs_dir_item *di;
@@ -4181,9 +4201,9 @@ int btrfs_unlink_subvol(struct btrfs_trans_handle *trans,
}
btrfs_release_path(path);
- ret = btrfs_del_root_ref(trans, root->fs_info,
- objectid, root->root_key.objectid,
- dir_ino, &index, name, name_len);
+ ret = btrfs_del_root_ref(trans, fs_info, objectid,
+ root->root_key.objectid, dir_ino,
+ &index, name, name_len);
if (ret < 0) {
if (ret != -ENOENT) {
btrfs_abort_transaction(trans, ret);
@@ -4285,6 +4305,7 @@ static int truncate_space_check(struct btrfs_trans_handle *trans,
struct btrfs_root *root,
u64 bytes_deleted)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
int ret;
/*
@@ -4292,11 +4313,11 @@ static int truncate_space_check(struct btrfs_trans_handle *trans,
* intend to use this reservation at all.
*/
bytes_deleted = btrfs_csum_bytes_to_leaves(root, bytes_deleted);
- bytes_deleted *= root->fs_info->nodesize;
- ret = btrfs_block_rsv_add(root, &root->fs_info->trans_block_rsv,
+ bytes_deleted *= fs_info->nodesize;
+ ret = btrfs_block_rsv_add(root, &fs_info->trans_block_rsv,
bytes_deleted, BTRFS_RESERVE_NO_FLUSH);
if (!ret) {
- trace_btrfs_space_reservation(root->fs_info, "transaction",
+ trace_btrfs_space_reservation(fs_info, "transaction",
trans->transid,
bytes_deleted, 1);
trans->bytes_reserved += bytes_deleted;
@@ -4363,6 +4384,7 @@ int btrfs_truncate_inode_items(struct btrfs_trans_handle *trans,
struct inode *inode,
u64 new_size, u32 min_type)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_path *path;
struct extent_buffer *leaf;
struct btrfs_file_extent_item *fi;
@@ -4408,9 +4430,9 @@ int btrfs_truncate_inode_items(struct btrfs_trans_handle *trans,
* extent just the way it is.
*/
if (test_bit(BTRFS_ROOT_REF_COWS, &root->state) ||
- root == root->fs_info->tree_root)
+ root == fs_info->tree_root)
btrfs_drop_extent_cache(inode, ALIGN(new_size,
- root->fs_info->sectorsize),
+ fs_info->sectorsize),
(u64)-1, 0);
/*
@@ -4510,7 +4532,7 @@ int btrfs_truncate_inode_items(struct btrfs_trans_handle *trans,
btrfs_file_extent_num_bytes(leaf, fi);
extent_num_bytes = ALIGN(new_size -
found_key.offset,
- root->fs_info->sectorsize);
+ fs_info->sectorsize);
btrfs_set_file_extent_num_bytes(leaf, fi,
extent_num_bytes);
num_dec = (orig_num_bytes -
@@ -4597,7 +4619,7 @@ int btrfs_truncate_inode_items(struct btrfs_trans_handle *trans,
if (found_extent &&
(test_bit(BTRFS_ROOT_REF_COWS, &root->state) ||
- root == root->fs_info->tree_root)) {
+ root == fs_info->tree_root)) {
btrfs_set_path_blocking(path);
bytes_deleted += extent_num_bytes;
ret = btrfs_free_extent(trans, root, extent_start,
@@ -4699,13 +4721,13 @@ int btrfs_truncate_inode_items(struct btrfs_trans_handle *trans,
int btrfs_truncate_block(struct inode *inode, loff_t from, loff_t len,
int front)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct address_space *mapping = inode->i_mapping;
- struct btrfs_root *root = BTRFS_I(inode)->root;
struct extent_io_tree *io_tree = &BTRFS_I(inode)->io_tree;
struct btrfs_ordered_extent *ordered;
struct extent_state *cached_state = NULL;
char *kaddr;
- u32 blocksize = root->fs_info->sectorsize;
+ u32 blocksize = fs_info->sectorsize;
pgoff_t index = from >> PAGE_SHIFT;
unsigned offset = from & (blocksize - 1);
struct page *page;
@@ -4809,6 +4831,7 @@ int btrfs_truncate_block(struct inode *inode, loff_t from, loff_t len,
static int maybe_insert_hole(struct btrfs_root *root, struct inode *inode,
u64 offset, u64 len)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_trans_handle *trans;
int ret;
@@ -4816,8 +4839,8 @@ static int maybe_insert_hole(struct btrfs_root *root, struct inode *inode,
* Still need to make sure the inode looks like it's been updated so
* that any holes get logged if we fsync.
*/
- if (btrfs_fs_incompat(root->fs_info, NO_HOLES)) {
- BTRFS_I(inode)->last_trans = root->fs_info->generation;
+ if (btrfs_fs_incompat(fs_info, NO_HOLES)) {
+ BTRFS_I(inode)->last_trans = fs_info->generation;
BTRFS_I(inode)->last_sub_trans = root->log_transid;
BTRFS_I(inode)->last_log_commit = root->last_log_commit;
return 0;
@@ -4857,13 +4880,14 @@ static int maybe_insert_hole(struct btrfs_root *root, struct inode *inode,
*/
int btrfs_cont_expand(struct inode *inode, loff_t oldsize, loff_t size)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_root *root = BTRFS_I(inode)->root;
struct extent_io_tree *io_tree = &BTRFS_I(inode)->io_tree;
struct extent_map *em = NULL;
struct extent_state *cached_state = NULL;
struct extent_map_tree *em_tree = &BTRFS_I(inode)->extent_tree;
- u64 hole_start = ALIGN(oldsize, root->fs_info->sectorsize);
- u64 block_end = ALIGN(size, root->fs_info->sectorsize);
+ u64 hole_start = ALIGN(oldsize, fs_info->sectorsize);
+ u64 block_end = ALIGN(size, fs_info->sectorsize);
u64 last_byte;
u64 cur_offset;
u64 hole_size;
@@ -4906,7 +4930,7 @@ int btrfs_cont_expand(struct inode *inode, loff_t oldsize, loff_t size)
break;
}
last_byte = min(extent_map_end(em), block_end);
- last_byte = ALIGN(last_byte, root->fs_info->sectorsize);
+ last_byte = ALIGN(last_byte, fs_info->sectorsize);
if (!test_bit(EXTENT_FLAG_PREALLOC, &em->flags)) {
struct extent_map *hole_em;
hole_size = last_byte - cur_offset;
@@ -4931,9 +4955,9 @@ int btrfs_cont_expand(struct inode *inode, loff_t oldsize, loff_t size)
hole_em->block_len = 0;
hole_em->orig_block_len = 0;
hole_em->ram_bytes = hole_size;
- hole_em->bdev = root->fs_info->fs_devices->latest_bdev;
+ hole_em->bdev = fs_info->fs_devices->latest_bdev;
hole_em->compress_type = BTRFS_COMPRESS_NONE;
- hole_em->generation = root->fs_info->generation;
+ hole_em->generation = fs_info->generation;
while (1) {
write_lock(&em_tree->lock);
@@ -5203,6 +5227,7 @@ static void evict_inode_truncate_pages(struct inode *inode)
void btrfs_evict_inode(struct inode *inode)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_trans_handle *trans;
struct btrfs_root *root = BTRFS_I(inode)->root;
struct btrfs_block_rsv *rsv, *global_rsv;
@@ -5217,7 +5242,7 @@ void btrfs_evict_inode(struct inode *inode)
return;
}
- min_size = btrfs_calc_trunc_metadata_size(root->fs_info, 1);
+ min_size = btrfs_calc_trunc_metadata_size(fs_info, 1);
evict_inode_truncate_pages(inode);
@@ -5237,7 +5262,7 @@ void btrfs_evict_inode(struct inode *inode)
btrfs_free_io_failure_record(inode, 0, (u64)-1);
- if (test_bit(BTRFS_FS_LOG_RECOVERING, &root->fs_info->flags)) {
+ if (test_bit(BTRFS_FS_LOG_RECOVERING, &fs_info->flags)) {
BUG_ON(test_bit(BTRFS_INODE_HAS_ORPHAN_ITEM,
&BTRFS_I(inode)->runtime_flags));
goto no_delete;
@@ -5262,7 +5287,7 @@ void btrfs_evict_inode(struct inode *inode)
}
rsv->size = min_size;
rsv->failfast = 1;
- global_rsv = &root->fs_info->global_block_rsv;
+ global_rsv = &fs_info->global_block_rsv;
btrfs_i_size_write(inode, 0);
@@ -5296,9 +5321,9 @@ void btrfs_evict_inode(struct inode *inode)
* steal_from_global == 3: abandon all hope!
*/
if (steal_from_global > 2) {
- btrfs_warn(root->fs_info,
- "Could not get space for a delete, will truncate on mount %d",
- ret);
+ btrfs_warn(fs_info,
+ "Could not get space for a delete, will truncate on mount %d",
+ ret);
btrfs_orphan_del(NULL, inode);
btrfs_free_block_rsv(root, rsv);
goto no_delete;
@@ -5347,7 +5372,7 @@ void btrfs_evict_inode(struct inode *inode)
if (ret != -ENOSPC && ret != -EAGAIN)
break;
- trans->block_rsv = &root->fs_info->trans_block_rsv;
+ trans->block_rsv = &fs_info->trans_block_rsv;
btrfs_end_transaction(trans, root);
trans = NULL;
btrfs_btree_balance_dirty(root);
@@ -5366,8 +5391,8 @@ void btrfs_evict_inode(struct inode *inode)
btrfs_orphan_del(NULL, inode);
}
- trans->block_rsv = &root->fs_info->trans_block_rsv;
- if (!(root == root->fs_info->tree_root ||
+ trans->block_rsv = &fs_info->trans_block_rsv;
+ if (!(root == fs_info->tree_root ||
root->root_key.objectid == BTRFS_TREE_RELOC_OBJECTID))
btrfs_return_ino(root, btrfs_ino(inode));
@@ -5424,6 +5449,7 @@ static int fixup_tree_root_location(struct btrfs_root *root,
struct btrfs_key *location,
struct btrfs_root **sub_root)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(dir->i_sb);
struct btrfs_path *path;
struct btrfs_root *new_root;
struct btrfs_root_ref *ref;
@@ -5443,8 +5469,7 @@ static int fixup_tree_root_location(struct btrfs_root *root,
key.type = BTRFS_ROOT_REF_KEY;
key.offset = location->objectid;
- ret = btrfs_search_slot(NULL, root->fs_info->tree_root, &key, path,
- 0, 0);
+ ret = btrfs_search_slot(NULL, fs_info->tree_root, &key, path, 0, 0);
if (ret) {
if (ret < 0)
err = ret;
@@ -5465,7 +5490,7 @@ static int fixup_tree_root_location(struct btrfs_root *root,
btrfs_release_path(path);
- new_root = btrfs_read_fs_root_no_name(root->fs_info, location);
+ new_root = btrfs_read_fs_root_no_name(fs_info, location);
if (IS_ERR(new_root)) {
err = PTR_ERR(new_root);
goto out;
@@ -5519,6 +5544,7 @@ static void inode_tree_add(struct inode *inode)
static void inode_tree_del(struct inode *inode)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_root *root = BTRFS_I(inode)->root;
int empty = 0;
@@ -5531,7 +5557,7 @@ static void inode_tree_del(struct inode *inode)
spin_unlock(&root->inode_lock);
if (empty && btrfs_root_refs(&root->root_item) == 0) {
- synchronize_srcu(&root->fs_info->subvol_srcu);
+ synchronize_srcu(&fs_info->subvol_srcu);
spin_lock(&root->inode_lock);
empty = RB_EMPTY_ROOT(&root->inode_tree);
spin_unlock(&root->inode_lock);
@@ -5542,13 +5568,14 @@ static void inode_tree_del(struct inode *inode)
void btrfs_invalidate_inodes(struct btrfs_root *root)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct rb_node *node;
struct rb_node *prev;
struct btrfs_inode *entry;
struct inode *inode;
u64 objectid = 0;
- if (!test_bit(BTRFS_FS_STATE_ERROR, &root->fs_info->fs_state))
+ if (!test_bit(BTRFS_FS_STATE_ERROR, &fs_info->fs_state))
WARN_ON(btrfs_root_refs(&root->root_item) != 0);
spin_lock(&root->inode_lock);
@@ -5696,6 +5723,7 @@ static struct inode *new_simple_dir(struct super_block *s,
struct inode *btrfs_lookup_dentry(struct inode *dir, struct dentry *dentry)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(dir->i_sb);
struct inode *inode;
struct btrfs_root *root = BTRFS_I(dir)->root;
struct btrfs_root *sub_root = root;
@@ -5720,7 +5748,7 @@ struct inode *btrfs_lookup_dentry(struct inode *dir, struct dentry *dentry)
BUG_ON(location.type != BTRFS_ROOT_ITEM_KEY);
- index = srcu_read_lock(&root->fs_info->subvol_srcu);
+ index = srcu_read_lock(&fs_info->subvol_srcu);
ret = fixup_tree_root_location(root, dir, dentry,
&location, &sub_root);
if (ret < 0) {
@@ -5731,13 +5759,13 @@ struct inode *btrfs_lookup_dentry(struct inode *dir, struct dentry *dentry)
} else {
inode = btrfs_iget(dir->i_sb, &location, sub_root, NULL);
}
- srcu_read_unlock(&root->fs_info->subvol_srcu, index);
+ srcu_read_unlock(&fs_info->subvol_srcu, index);
if (!IS_ERR(inode) && root != sub_root) {
- down_read(&root->fs_info->cleanup_work_sem);
+ down_read(&fs_info->cleanup_work_sem);
if (!(inode->i_sb->s_flags & MS_RDONLY))
ret = btrfs_orphan_cleanup(sub_root);
- up_read(&root->fs_info->cleanup_work_sem);
+ up_read(&fs_info->cleanup_work_sem);
if (ret) {
iput(inode);
inode = ERR_PTR(ret);
@@ -6109,6 +6137,7 @@ static struct inode *btrfs_new_inode(struct btrfs_trans_handle *trans,
u64 ref_objectid, u64 objectid,
umode_t mode, u64 *index)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct inode *inode;
struct btrfs_inode_item *inode_item;
struct btrfs_key *location;
@@ -6124,7 +6153,7 @@ static struct inode *btrfs_new_inode(struct btrfs_trans_handle *trans,
if (!path)
return ERR_PTR(-ENOMEM);
- inode = new_inode(root->fs_info->sb);
+ inode = new_inode(fs_info->sb);
if (!inode) {
btrfs_free_path(path);
return ERR_PTR(-ENOMEM);
@@ -6237,9 +6266,9 @@ static struct inode *btrfs_new_inode(struct btrfs_trans_handle *trans,
btrfs_inherit_iflags(inode, dir);
if (S_ISREG(mode)) {
- if (btrfs_test_opt(root->fs_info, NODATASUM))
+ if (btrfs_test_opt(fs_info, NODATASUM))
BTRFS_I(inode)->flags |= BTRFS_INODE_NODATASUM;
- if (btrfs_test_opt(root->fs_info, NODATACOW))
+ if (btrfs_test_opt(fs_info, NODATACOW))
BTRFS_I(inode)->flags |= BTRFS_INODE_NODATACOW |
BTRFS_INODE_NODATASUM;
}
@@ -6253,7 +6282,7 @@ static struct inode *btrfs_new_inode(struct btrfs_trans_handle *trans,
ret = btrfs_inode_inherit_props(trans, inode, dir);
if (ret)
- btrfs_err(root->fs_info,
+ btrfs_err(fs_info,
"error inheriting props for ino %llu (root %llu): %d",
btrfs_ino(inode), root->root_key.objectid, ret);
@@ -6284,6 +6313,7 @@ int btrfs_add_link(struct btrfs_trans_handle *trans,
struct inode *parent_inode, struct inode *inode,
const char *name, int name_len, int add_backref, u64 index)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
int ret = 0;
struct btrfs_key key;
struct btrfs_root *root = BTRFS_I(parent_inode)->root;
@@ -6299,9 +6329,9 @@ int btrfs_add_link(struct btrfs_trans_handle *trans,
}
if (unlikely(ino == BTRFS_FIRST_FREE_OBJECTID)) {
- ret = btrfs_add_root_ref(trans, root->fs_info,
- key.objectid, root->root_key.objectid,
- parent_ino, index, name, name_len);
+ ret = btrfs_add_root_ref(trans, fs_info, key.objectid,
+ root->root_key.objectid, parent_ino,
+ index, name, name_len);
} else if (add_backref) {
ret = btrfs_insert_inode_ref(trans, root, name, name_len, ino,
parent_ino, index);
@@ -6335,9 +6365,9 @@ int btrfs_add_link(struct btrfs_trans_handle *trans,
if (unlikely(ino == BTRFS_FIRST_FREE_OBJECTID)) {
u64 local_index;
int err;
- err = btrfs_del_root_ref(trans, root->fs_info,
- key.objectid, root->root_key.objectid,
- parent_ino, &local_index, name, name_len);
+ err = btrfs_del_root_ref(trans, fs_info, key.objectid,
+ root->root_key.objectid, parent_ino,
+ &local_index, name, name_len);
} else if (add_backref) {
u64 local_index;
@@ -6761,6 +6791,7 @@ struct extent_map *btrfs_get_extent(struct inode *inode, struct page *page,
size_t pg_offset, u64 start, u64 len,
int create)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
int ret;
int err = 0;
u64 extent_start = 0;
@@ -6782,7 +6813,7 @@ struct extent_map *btrfs_get_extent(struct inode *inode, struct page *page,
read_lock(&em_tree->lock);
em = lookup_extent_mapping(em_tree, start, len);
if (em)
- em->bdev = root->fs_info->fs_devices->latest_bdev;
+ em->bdev = fs_info->fs_devices->latest_bdev;
read_unlock(&em_tree->lock);
if (em) {
@@ -6798,7 +6829,7 @@ struct extent_map *btrfs_get_extent(struct inode *inode, struct page *page,
err = -ENOMEM;
goto out;
}
- em->bdev = root->fs_info->fs_devices->latest_bdev;
+ em->bdev = fs_info->fs_devices->latest_bdev;
em->start = EXTENT_MAP_HOLE;
em->orig_start = EXTENT_MAP_HOLE;
em->len = (u64)-1;
@@ -6858,7 +6889,7 @@ struct extent_map *btrfs_get_extent(struct inode *inode, struct page *page,
size_t size;
size = btrfs_file_extent_inline_len(leaf, path->slots[0], item);
extent_end = ALIGN(extent_start + size,
- root->fs_info->sectorsize);
+ fs_info->sectorsize);
}
next:
if (start >= extent_end) {
@@ -6907,7 +6938,7 @@ struct extent_map *btrfs_get_extent(struct inode *inode, struct page *page,
copy_size = min_t(u64, PAGE_SIZE - pg_offset,
size - extent_offset);
em->start = extent_start + extent_offset;
- em->len = ALIGN(copy_size, root->fs_info->sectorsize);
+ em->len = ALIGN(copy_size, fs_info->sectorsize);
em->orig_block_len = em->len;
em->orig_start = em->start;
ptr = btrfs_file_extent_inline_start(item) + extent_offset;
@@ -6966,7 +6997,7 @@ struct extent_map *btrfs_get_extent(struct inode *inode, struct page *page,
insert:
btrfs_release_path(path);
if (em->start > start || extent_map_end(em) <= start) {
- btrfs_err(root->fs_info,
+ btrfs_err(fs_info,
"bad extent! em: [%llu %llu] passed [%llu %llu]",
em->start, em->len, start, len);
err = -EIO;
@@ -7206,6 +7237,7 @@ static struct extent_map *btrfs_create_dio_extent(struct inode *inode,
static struct extent_map *btrfs_new_extent_direct(struct inode *inode,
u64 start, u64 len)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_root *root = BTRFS_I(inode)->root;
struct extent_map *em;
struct btrfs_key ins;
@@ -7213,7 +7245,7 @@ static struct extent_map *btrfs_new_extent_direct(struct inode *inode,
int ret;
alloc_hint = get_extent_allocation_hint(inode, start, len);
- ret = btrfs_reserve_extent(root, len, len, root->fs_info->sectorsize,
+ ret = btrfs_reserve_extent(root, len, len, fs_info->sectorsize,
0, alloc_hint, &ins, 1, 1);
if (ret)
return ERR_PTR(ret);
@@ -7221,7 +7253,7 @@ static struct extent_map *btrfs_new_extent_direct(struct inode *inode,
em = btrfs_create_dio_extent(inode, start, ins.offset, start,
ins.objectid, ins.offset, ins.offset,
ins.offset, 0);
- btrfs_dec_block_group_reservations(root->fs_info, ins.objectid);
+ btrfs_dec_block_group_reservations(fs_info, ins.objectid);
if (IS_ERR(em))
btrfs_free_reserved_extent(root, ins.objectid, ins.offset, 1);
@@ -7596,8 +7628,8 @@ static void adjust_dio_outstanding_extents(struct inode *inode,
static int btrfs_get_blocks_direct(struct inode *inode, sector_t iblock,
struct buffer_head *bh_result, int create)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct extent_map *em;
- struct btrfs_root *root = BTRFS_I(inode)->root;
struct extent_state *cached_state = NULL;
struct btrfs_dio_data *dio_data = NULL;
u64 start = iblock << inode->i_blkbits;
@@ -7609,7 +7641,7 @@ static int btrfs_get_blocks_direct(struct inode *inode, sector_t iblock,
if (create)
unlock_bits |= EXTENT_DIRTY;
else
- len = min_t(u64, len, root->fs_info->sectorsize);
+ len = min_t(u64, len, fs_info->sectorsize);
lockstart = start;
lockend = start + len - 1;
@@ -7698,14 +7730,14 @@ static int btrfs_get_blocks_direct(struct inode *inode, sector_t iblock,
if (can_nocow_extent(inode, start, &len, &orig_start,
&orig_block_len, &ram_bytes) == 1 &&
- btrfs_inc_nocow_writers(root->fs_info, block_start)) {
+ btrfs_inc_nocow_writers(fs_info, block_start)) {
struct extent_map *em2;
em2 = btrfs_create_dio_extent(inode, start, len,
orig_start, block_start,
len, orig_block_len,
ram_bytes, type);
- btrfs_dec_nocow_writers(root->fs_info, block_start);
+ btrfs_dec_nocow_writers(fs_info, block_start);
if (type == BTRFS_ORDERED_PREALLOC) {
free_extent_map(em);
em = em2;
@@ -7731,7 +7763,7 @@ static int btrfs_get_blocks_direct(struct inode *inode, sector_t iblock,
* give it a chance to use preallocated space.
*/
len = min_t(u64, bh_result->b_size, em->len - (start - em->start));
- len = ALIGN(len, root->fs_info->sectorsize);
+ len = ALIGN(len, fs_info->sectorsize);
free_extent_map(em);
em = btrfs_new_extent_direct(inode, start, len);
if (IS_ERR(em)) {
@@ -8142,7 +8174,7 @@ static void btrfs_endio_direct_write_update_ordered(struct inode *inode,
const u64 bytes,
const int uptodate)
{
- struct btrfs_root *root = BTRFS_I(inode)->root;
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_ordered_extent *ordered = NULL;
u64 ordered_offset = offset;
u64 ordered_bytes = bytes;
@@ -8158,8 +8190,7 @@ static void btrfs_endio_direct_write_update_ordered(struct inode *inode,
btrfs_init_work(&ordered->work, btrfs_endio_write_helper,
finish_ordered_fn, NULL, NULL);
- btrfs_queue_work(root->fs_info->endio_write_workers,
- &ordered->work);
+ btrfs_queue_work(fs_info->endio_write_workers, &ordered->work);
out_test:
/*
* our bio might span multiple ordered extents. If we haven't
@@ -8285,6 +8316,7 @@ static inline int __btrfs_submit_dio_bio(struct bio *bio, struct inode *inode,
u64 file_offset, int skip_sum,
int async_submit)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_dio_private *dip = bio->bi_private;
bool write = bio_op(bio) == REQ_OP_WRITE;
struct btrfs_root *root = BTRFS_I(inode)->root;
@@ -8296,8 +8328,7 @@ static inline int __btrfs_submit_dio_bio(struct bio *bio, struct inode *inode,
bio_get(bio);
if (!write) {
- ret = btrfs_bio_wq_end_io(root->fs_info, bio,
- BTRFS_WQ_ENDIO_DATA);
+ ret = btrfs_bio_wq_end_io(fs_info, bio, BTRFS_WQ_ENDIO_DATA);
if (ret)
goto err;
}
@@ -8306,10 +8337,10 @@ static inline int __btrfs_submit_dio_bio(struct bio *bio, struct inode *inode,
goto map;
if (write && async_submit) {
- ret = btrfs_wq_submit_bio(root->fs_info,
- inode, bio, 0, 0, file_offset,
- __btrfs_submit_bio_start_direct_io,
- __btrfs_submit_bio_done);
+ ret = btrfs_wq_submit_bio(fs_info, inode, bio, 0, 0,
+ file_offset,
+ __btrfs_submit_bio_start_direct_io,
+ __btrfs_submit_bio_done);
goto err;
} else if (write) {
/*
@@ -8336,6 +8367,7 @@ static int btrfs_submit_direct_hook(struct btrfs_dio_private *dip,
int skip_sum)
{
struct inode *inode = dip->inode;
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_root *root = BTRFS_I(inode)->root;
struct bio *bio;
struct bio *orig_bio = dip->orig_bio;
@@ -8344,15 +8376,15 @@ static int btrfs_submit_direct_hook(struct btrfs_dio_private *dip,
u64 file_offset = dip->logical_offset;
u64 submit_len = 0;
u64 map_length;
- u32 blocksize = root->fs_info->sectorsize;
+ u32 blocksize = fs_info->sectorsize;
int async_submit = 0;
int nr_sectors;
int ret;
int i, j;
map_length = orig_bio->bi_iter.bi_size;
- ret = btrfs_map_block(root->fs_info, btrfs_op(orig_bio),
- start_sector << 9, &map_length, NULL, 0);
+ ret = btrfs_map_block(fs_info, btrfs_op(orig_bio), start_sector << 9,
+ &map_length, NULL, 0);
if (ret)
return -EIO;
@@ -8379,7 +8411,7 @@ static int btrfs_submit_direct_hook(struct btrfs_dio_private *dip,
atomic_inc(&dip->pending_bios);
bio_for_each_segment_all(bvec, orig_bio, j) {
- nr_sectors = BTRFS_BYTES_TO_BLKS(root->fs_info, bvec->bv_len);
+ nr_sectors = BTRFS_BYTES_TO_BLKS(fs_info, bvec->bv_len);
i = 0;
next_block:
if (unlikely(map_length < submit_len + blocksize ||
@@ -8417,7 +8449,7 @@ static int btrfs_submit_direct_hook(struct btrfs_dio_private *dip,
btrfs_io_bio(bio)->logical = file_offset;
map_length = orig_bio->bi_iter.bi_size;
- ret = btrfs_map_block(root->fs_info, btrfs_op(orig_bio),
+ ret = btrfs_map_block(fs_info, btrfs_op(orig_bio),
start_sector << 9,
&map_length, NULL, 0);
if (ret) {
@@ -8566,9 +8598,10 @@ static void btrfs_submit_direct(struct bio *dio_bio, struct inode *inode,
static ssize_t check_direct_IO(struct btrfs_root *root, struct kiocb *iocb,
const struct iov_iter *iter, loff_t offset)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
int seg;
int i;
- unsigned int blocksize_mask = root->fs_info->sectorsize - 1;
+ unsigned int blocksize_mask = fs_info->sectorsize - 1;
ssize_t retval = -EINVAL;
if (offset & blocksize_mask)
@@ -8600,7 +8633,7 @@ static ssize_t btrfs_direct_IO(struct kiocb *iocb, struct iov_iter *iter)
{
struct file *file = iocb->ki_filp;
struct inode *inode = file->f_mapping->host;
- struct btrfs_root *root = BTRFS_I(inode)->root;
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_dio_data dio_data = { 0 };
loff_t offset = iocb->ki_pos;
size_t count = 0;
@@ -8650,7 +8683,7 @@ static ssize_t btrfs_direct_IO(struct kiocb *iocb, struct iov_iter *iter)
* originally calculated. Abuse current->journal_info for this.
*/
dio_data.reserve = round_up(count,
- root->fs_info->sectorsize);
+ fs_info->sectorsize);
dio_data.unsubmitted_oe_range_start = (u64)offset;
dio_data.unsubmitted_oe_range_end = (u64)offset;
current->journal_info = &dio_data;
@@ -8662,7 +8695,7 @@ static ssize_t btrfs_direct_IO(struct kiocb *iocb, struct iov_iter *iter)
}
ret = __blockdev_direct_IO(iocb, inode,
- BTRFS_I(inode)->root->fs_info->fs_devices->latest_bdev,
+ fs_info->fs_devices->latest_bdev,
iter, btrfs_get_blocks_direct, NULL,
btrfs_submit_direct, flags);
if (iov_iter_rw(iter) == WRITE) {
@@ -8921,7 +8954,7 @@ int btrfs_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf)
{
struct page *page = vmf->page;
struct inode *inode = file_inode(vma->vm_file);
- struct btrfs_root *root = BTRFS_I(inode)->root;
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct extent_io_tree *io_tree = &BTRFS_I(inode)->io_tree;
struct btrfs_ordered_extent *ordered;
struct extent_state *cached_state = NULL;
@@ -8997,7 +9030,7 @@ int btrfs_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf)
if (page->index == ((size - 1) >> PAGE_SHIFT)) {
reserved_space = round_up(size - page_start,
- root->fs_info->sectorsize);
+ fs_info->sectorsize);
if (reserved_space < PAGE_SIZE) {
end = page_start + reserved_space - 1;
spin_lock(&BTRFS_I(inode)->lock);
@@ -9046,7 +9079,7 @@ int btrfs_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf)
set_page_dirty(page);
SetPageUptodate(page);
- BTRFS_I(inode)->last_trans = root->fs_info->generation;
+ BTRFS_I(inode)->last_trans = fs_info->generation;
BTRFS_I(inode)->last_sub_trans = BTRFS_I(inode)->root->log_transid;
BTRFS_I(inode)->last_log_commit = BTRFS_I(inode)->root->last_log_commit;
@@ -9067,13 +9100,14 @@ int btrfs_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf)
static int btrfs_truncate(struct inode *inode)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_root *root = BTRFS_I(inode)->root;
struct btrfs_block_rsv *rsv;
int ret = 0;
int err = 0;
struct btrfs_trans_handle *trans;
- u64 mask = root->fs_info->sectorsize - 1;
- u64 min_size = btrfs_calc_trunc_metadata_size(root->fs_info, 1);
+ u64 mask = fs_info->sectorsize - 1;
+ u64 min_size = btrfs_calc_trunc_metadata_size(fs_info, 1);
ret = btrfs_wait_ordered_range(inode, inode->i_size & (~mask),
(u64)-1);
@@ -9133,7 +9167,7 @@ static int btrfs_truncate(struct inode *inode)
}
/* Migrate the slack space for the truncate to our reserve */
- ret = btrfs_block_rsv_migrate(&root->fs_info->trans_block_rsv, rsv,
+ ret = btrfs_block_rsv_migrate(&fs_info->trans_block_rsv, rsv,
min_size, 0);
BUG_ON(ret);
@@ -9156,7 +9190,7 @@ static int btrfs_truncate(struct inode *inode)
break;
}
- trans->block_rsv = &root->fs_info->trans_block_rsv;
+ trans->block_rsv = &fs_info->trans_block_rsv;
ret = btrfs_update_inode(trans, root, inode);
if (ret) {
err = ret;
@@ -9173,7 +9207,7 @@ static int btrfs_truncate(struct inode *inode)
break;
}
- ret = btrfs_block_rsv_migrate(&root->fs_info->trans_block_rsv,
+ ret = btrfs_block_rsv_migrate(&fs_info->trans_block_rsv,
rsv, min_size, 0);
BUG_ON(ret); /* shouldn't happen */
trans->block_rsv = rsv;
@@ -9187,7 +9221,7 @@ static int btrfs_truncate(struct inode *inode)
}
if (trans) {
- trans->block_rsv = &root->fs_info->trans_block_rsv;
+ trans->block_rsv = &fs_info->trans_block_rsv;
ret = btrfs_update_inode(trans, root, inode);
if (ret && !err)
err = ret;
@@ -9312,6 +9346,7 @@ static void btrfs_i_callback(struct rcu_head *head)
void btrfs_destroy_inode(struct inode *inode)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_ordered_extent *ordered;
struct btrfs_root *root = BTRFS_I(inode)->root;
@@ -9333,8 +9368,8 @@ void btrfs_destroy_inode(struct inode *inode)
if (test_bit(BTRFS_INODE_HAS_ORPHAN_ITEM,
&BTRFS_I(inode)->runtime_flags)) {
- btrfs_info(root->fs_info, "inode %llu still on the orphan list",
- btrfs_ino(inode));
+ btrfs_info(fs_info, "inode %llu still on the orphan list",
+ btrfs_ino(inode));
atomic_dec(&root->orphan_inodes);
}
@@ -9343,7 +9378,7 @@ void btrfs_destroy_inode(struct inode *inode)
if (!ordered)
break;
else {
- btrfs_err(root->fs_info,
+ btrfs_err(fs_info,
"found ordered extent %llu %llu on inode cleanup",
ordered->file_offset, ordered->len);
btrfs_remove_ordered_extent(inode, ordered);
@@ -9455,6 +9490,7 @@ static int btrfs_rename_exchange(struct inode *old_dir,
struct inode *new_dir,
struct dentry *new_dentry)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(old_dir->i_sb);
struct btrfs_trans_handle *trans;
struct btrfs_root *root = BTRFS_I(old_dir)->root;
struct btrfs_root *dest = BTRFS_I(new_dir)->root;
@@ -9477,9 +9513,9 @@ static int btrfs_rename_exchange(struct inode *old_dir,
/* close the race window with snapshot create/destroy ioctl */
if (old_ino == BTRFS_FIRST_FREE_OBJECTID)
- down_read(&root->fs_info->subvol_sem);
+ down_read(&fs_info->subvol_sem);
if (new_ino == BTRFS_FIRST_FREE_OBJECTID)
- down_read(&dest->fs_info->subvol_sem);
+ down_read(&fs_info->subvol_sem);
/*
* We want to reserve the absolute worst case amount of items. So if
@@ -9512,7 +9548,7 @@ static int btrfs_rename_exchange(struct inode *old_dir,
/* Reference for the source. */
if (old_ino == BTRFS_FIRST_FREE_OBJECTID) {
/* force full log commit if subvolume involved. */
- btrfs_set_log_full_commit(root->fs_info, trans);
+ btrfs_set_log_full_commit(fs_info, trans);
} else {
btrfs_pin_log_trans(root);
root_log_pinned = true;
@@ -9528,7 +9564,7 @@ static int btrfs_rename_exchange(struct inode *old_dir,
/* And now for the dest. */
if (new_ino == BTRFS_FIRST_FREE_OBJECTID) {
/* force full log commit if subvolume involved. */
- btrfs_set_log_full_commit(dest->fs_info, trans);
+ btrfs_set_log_full_commit(fs_info, trans);
} else {
btrfs_pin_log_trans(dest);
dest_log_pinned = true;
@@ -9642,12 +9678,12 @@ static int btrfs_rename_exchange(struct inode *old_dir,
* allow the tasks to sync it.
*/
if (ret && (root_log_pinned || dest_log_pinned)) {
- if (btrfs_inode_in_log(old_dir, root->fs_info->generation) ||
- btrfs_inode_in_log(new_dir, root->fs_info->generation) ||
- btrfs_inode_in_log(old_inode, root->fs_info->generation) ||
+ if (btrfs_inode_in_log(old_dir, fs_info->generation) ||
+ btrfs_inode_in_log(new_dir, fs_info->generation) ||
+ btrfs_inode_in_log(old_inode, fs_info->generation) ||
(new_inode &&
- btrfs_inode_in_log(new_inode, root->fs_info->generation)))
- btrfs_set_log_full_commit(root->fs_info, trans);
+ btrfs_inode_in_log(new_inode, fs_info->generation)))
+ btrfs_set_log_full_commit(fs_info, trans);
if (root_log_pinned) {
btrfs_end_log_trans(root);
@@ -9661,9 +9697,9 @@ static int btrfs_rename_exchange(struct inode *old_dir,
ret = btrfs_end_transaction(trans, root);
out_notrans:
if (new_ino == BTRFS_FIRST_FREE_OBJECTID)
- up_read(&dest->fs_info->subvol_sem);
+ up_read(&fs_info->subvol_sem);
if (old_ino == BTRFS_FIRST_FREE_OBJECTID)
- up_read(&root->fs_info->subvol_sem);
+ up_read(&fs_info->subvol_sem);
return ret;
}
@@ -9723,6 +9759,7 @@ static int btrfs_rename(struct inode *old_dir, struct dentry *old_dentry,
struct inode *new_dir, struct dentry *new_dentry,
unsigned int flags)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(old_dir->i_sb);
struct btrfs_trans_handle *trans;
unsigned int trans_num_items;
struct btrfs_root *root = BTRFS_I(old_dir)->root;
@@ -9779,7 +9816,7 @@ static int btrfs_rename(struct inode *old_dir, struct dentry *old_dentry,
/* close the racy window with snapshot create/destroy ioctl */
if (old_ino == BTRFS_FIRST_FREE_OBJECTID)
- down_read(&root->fs_info->subvol_sem);
+ down_read(&fs_info->subvol_sem);
/*
* We want to reserve the absolute worst case amount of items. So if
* both inodes are subvols and we need to unlink them then that would
@@ -9810,7 +9847,7 @@ static int btrfs_rename(struct inode *old_dir, struct dentry *old_dentry,
BTRFS_I(old_inode)->dir_index = 0ULL;
if (unlikely(old_ino == BTRFS_FIRST_FREE_OBJECTID)) {
/* force full log commit if subvolume involved. */
- btrfs_set_log_full_commit(root->fs_info, trans);
+ btrfs_set_log_full_commit(fs_info, trans);
} else {
btrfs_pin_log_trans(root);
log_pinned = true;
@@ -9917,12 +9954,12 @@ static int btrfs_rename(struct inode *old_dir, struct dentry *old_dentry,
* allow the tasks to sync it.
*/
if (ret && log_pinned) {
- if (btrfs_inode_in_log(old_dir, root->fs_info->generation) ||
- btrfs_inode_in_log(new_dir, root->fs_info->generation) ||
- btrfs_inode_in_log(old_inode, root->fs_info->generation) ||
+ if (btrfs_inode_in_log(old_dir, fs_info->generation) ||
+ btrfs_inode_in_log(new_dir, fs_info->generation) ||
+ btrfs_inode_in_log(old_inode, fs_info->generation) ||
(new_inode &&
- btrfs_inode_in_log(new_inode, root->fs_info->generation)))
- btrfs_set_log_full_commit(root->fs_info, trans);
+ btrfs_inode_in_log(new_inode, fs_info->generation)))
+ btrfs_set_log_full_commit(fs_info, trans);
btrfs_end_log_trans(root);
log_pinned = false;
@@ -9930,7 +9967,7 @@ static int btrfs_rename(struct inode *old_dir, struct dentry *old_dentry,
btrfs_end_transaction(trans, root);
out_notrans:
if (old_ino == BTRFS_FIRST_FREE_OBJECTID)
- up_read(&root->fs_info->subvol_sem);
+ up_read(&fs_info->subvol_sem);
return ret;
}
@@ -10065,9 +10102,10 @@ static int __start_delalloc_inodes(struct btrfs_root *root, int delay_iput,
int btrfs_start_delalloc_inodes(struct btrfs_root *root, int delay_iput)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
int ret;
- if (test_bit(BTRFS_FS_STATE_ERROR, &root->fs_info->fs_state))
+ if (test_bit(BTRFS_FS_STATE_ERROR, &fs_info->fs_state))
return -EROFS;
ret = __start_delalloc_inodes(root, delay_iput, -1);
@@ -10078,14 +10116,14 @@ int btrfs_start_delalloc_inodes(struct btrfs_root *root, int delay_iput)
* we have to make sure the IO is actually started and that
* ordered extents get created before we return
*/
- atomic_inc(&root->fs_info->async_submit_draining);
- while (atomic_read(&root->fs_info->nr_async_submits) ||
- atomic_read(&root->fs_info->async_delalloc_pages)) {
- wait_event(root->fs_info->async_submit_wait,
- (atomic_read(&root->fs_info->nr_async_submits) == 0 &&
- atomic_read(&root->fs_info->async_delalloc_pages) == 0));
+ atomic_inc(&fs_info->async_submit_draining);
+ while (atomic_read(&fs_info->nr_async_submits) ||
+ atomic_read(&fs_info->async_delalloc_pages)) {
+ wait_event(fs_info->async_submit_wait,
+ (atomic_read(&fs_info->nr_async_submits) == 0 &&
+ atomic_read(&fs_info->async_delalloc_pages) == 0));
}
- atomic_dec(&root->fs_info->async_submit_draining);
+ atomic_dec(&fs_info->async_submit_draining);
return ret;
}
@@ -10148,6 +10186,7 @@ int btrfs_start_delalloc_roots(struct btrfs_fs_info *fs_info, int delay_iput,
static int btrfs_symlink(struct inode *dir, struct dentry *dentry,
const char *symname)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(dir->i_sb);
struct btrfs_trans_handle *trans;
struct btrfs_root *root = BTRFS_I(dir)->root;
struct btrfs_path *path;
@@ -10164,7 +10203,7 @@ static int btrfs_symlink(struct inode *dir, struct dentry *dentry,
struct extent_buffer *leaf;
name_len = strlen(symname);
- if (name_len > BTRFS_MAX_INLINE_DATA_SIZE(root->fs_info))
+ if (name_len > BTRFS_MAX_INLINE_DATA_SIZE(fs_info))
return -ENAMETOOLONG;
/*
@@ -10277,6 +10316,7 @@ static int __btrfs_prealloc_file_range(struct inode *inode, int mode,
loff_t actual_len, u64 *alloc_hint,
struct btrfs_trans_handle *trans)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct extent_map_tree *em_tree = &BTRFS_I(inode)->extent_tree;
struct extent_map *em;
struct btrfs_root *root = BTRFS_I(inode)->root;
@@ -10316,7 +10356,7 @@ static int __btrfs_prealloc_file_range(struct inode *inode, int mode,
btrfs_end_transaction(trans, root);
break;
}
- btrfs_dec_block_group_reservations(root->fs_info, ins.objectid);
+ btrfs_dec_block_group_reservations(fs_info, ins.objectid);
last_alloc = ins.offset;
ret = insert_reserved_file_extent(trans, inode,
@@ -10350,7 +10390,7 @@ static int __btrfs_prealloc_file_range(struct inode *inode, int mode,
em->block_len = ins.offset;
em->orig_block_len = ins.offset;
em->ram_bytes = ins.offset;
- em->bdev = root->fs_info->fs_devices->latest_bdev;
+ em->bdev = fs_info->fs_devices->latest_bdev;
set_bit(EXTENT_FLAG_PREALLOC, &em->flags);
em->generation = trans->transid;
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 062f67a..d00e4d3 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -215,6 +215,7 @@ static int check_flags(unsigned int flags)
static int btrfs_ioctl_setflags(struct file *file, void __user *arg)
{
struct inode *inode = file_inode(file);
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_inode *ip = BTRFS_I(inode);
struct btrfs_root *root = ip->root;
struct btrfs_trans_handle *trans;
@@ -324,7 +325,7 @@ static int btrfs_ioctl_setflags(struct file *file, void __user *arg)
ip->flags |= BTRFS_INODE_COMPRESS;
ip->flags &= ~BTRFS_INODE_NOCOMPRESS;
- if (root->fs_info->compress_type == BTRFS_COMPRESS_LZO)
+ if (fs_info->compress_type == BTRFS_COMPRESS_LZO)
comp = "lzo";
else
comp = "zlib";
@@ -373,7 +374,8 @@ static int btrfs_ioctl_getversion(struct file *file, int __user *arg)
static noinline int btrfs_ioctl_fitrim(struct file *file, void __user *arg)
{
- struct btrfs_fs_info *fs_info = btrfs_sb(file_inode(file)->i_sb);
+ struct inode *inode = file_inode(file);
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_device *device;
struct request_queue *q;
struct fstrim_range range;
@@ -436,6 +438,7 @@ static noinline int create_subvol(struct inode *dir,
u64 *async_transid,
struct btrfs_qgroup_inherit *inherit)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(dir->i_sb);
struct btrfs_trans_handle *trans;
struct btrfs_key key;
struct btrfs_root_item *root_item;
@@ -458,7 +461,7 @@ static noinline int create_subvol(struct inode *dir,
if (!root_item)
return -ENOMEM;
- ret = btrfs_find_free_objectid(root->fs_info->tree_root, &objectid);
+ ret = btrfs_find_free_objectid(fs_info->tree_root, &objectid);
if (ret)
goto fail_free;
@@ -491,7 +494,7 @@ static noinline int create_subvol(struct inode *dir,
trans->block_rsv = &block_rsv;
trans->bytes_reserved = block_rsv.size;
- ret = btrfs_qgroup_inherit(trans, root->fs_info, 0, objectid, inherit);
+ ret = btrfs_qgroup_inherit(trans, fs_info, 0, objectid, inherit);
if (ret)
goto fail;
@@ -507,9 +510,8 @@ static noinline int create_subvol(struct inode *dir,
btrfs_set_header_backref_rev(leaf, BTRFS_MIXED_BACKREF_REV);
btrfs_set_header_owner(leaf, objectid);
- write_extent_buffer_fsid(leaf, root->fs_info->fsid);
- write_extent_buffer_chunk_tree_uuid(leaf,
- root->fs_info->chunk_tree_uuid);
+ write_extent_buffer_fsid(leaf, fs_info->fsid);
+ write_extent_buffer_chunk_tree_uuid(leaf, fs_info->chunk_tree_uuid);
btrfs_mark_buffer_dirty(leaf);
inode_item = &root_item->inode;
@@ -517,7 +519,7 @@ static noinline int create_subvol(struct inode *dir,
btrfs_set_stack_inode_size(inode_item, 3);
btrfs_set_stack_inode_nlink(inode_item, 1);
btrfs_set_stack_inode_nbytes(inode_item,
- root->fs_info->nodesize);
+ fs_info->nodesize);
btrfs_set_stack_inode_mode(inode_item, S_IFDIR | 0755);
btrfs_set_root_flags(root_item, 0);
@@ -550,13 +552,13 @@ static noinline int create_subvol(struct inode *dir,
key.objectid = objectid;
key.offset = 0;
key.type = BTRFS_ROOT_ITEM_KEY;
- ret = btrfs_insert_root(trans, root->fs_info->tree_root, &key,
+ ret = btrfs_insert_root(trans, fs_info->tree_root, &key,
root_item);
if (ret)
goto fail;
key.offset = (u64)-1;
- new_root = btrfs_read_fs_root_no_name(root->fs_info, &key);
+ new_root = btrfs_read_fs_root_no_name(fs_info, &key);
if (IS_ERR(new_root)) {
ret = PTR_ERR(new_root);
btrfs_abort_transaction(trans, ret);
@@ -597,12 +599,12 @@ static noinline int create_subvol(struct inode *dir,
ret = btrfs_update_inode(trans, root, dir);
BUG_ON(ret);
- ret = btrfs_add_root_ref(trans, root->fs_info,
+ ret = btrfs_add_root_ref(trans, fs_info,
objectid, root->root_key.objectid,
btrfs_ino(dir), index, name, namelen);
BUG_ON(ret);
- ret = btrfs_uuid_tree_add(trans, root->fs_info, root_item->uuid,
+ ret = btrfs_uuid_tree_add(trans, fs_info, root_item->uuid,
BTRFS_UUID_KEY_SUBVOL, objectid);
if (ret)
btrfs_abort_transaction(trans, ret);
@@ -659,6 +661,7 @@ static int create_snapshot(struct btrfs_root *root, struct inode *dir,
u64 *async_transid, bool readonly,
struct btrfs_qgroup_inherit *inherit)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(dir->i_sb);
struct inode *inode;
struct btrfs_pending_snapshot *pending_snapshot;
struct btrfs_trans_handle *trans;
@@ -718,19 +721,19 @@ static int create_snapshot(struct btrfs_root *root, struct inode *dir,
goto fail;
}
- spin_lock(&root->fs_info->trans_lock);
+ spin_lock(&fs_info->trans_lock);
list_add(&pending_snapshot->list,
&trans->transaction->pending_snapshots);
- spin_unlock(&root->fs_info->trans_lock);
+ spin_unlock(&fs_info->trans_lock);
if (async_transid) {
*async_transid = trans->transid;
ret = btrfs_commit_transaction_async(trans,
- root->fs_info->extent_root, 1);
+ fs_info->extent_root, 1);
if (ret)
ret = btrfs_commit_transaction(trans, root);
} else {
ret = btrfs_commit_transaction(trans,
- root->fs_info->extent_root);
+ fs_info->extent_root);
}
if (ret)
goto fail;
@@ -839,7 +842,8 @@ static noinline int btrfs_mksubvol(struct path *parent,
u64 *async_transid, bool readonly,
struct btrfs_qgroup_inherit *inherit)
{
- struct inode *dir = d_inode(parent->dentry);
+ struct inode *dir = d_inode(parent->dentry);
+ struct btrfs_fs_info *fs_info = btrfs_sb(dir->i_sb);
struct dentry *dentry;
int error;
@@ -866,7 +870,7 @@ static noinline int btrfs_mksubvol(struct path *parent,
if (error)
goto out_dput;
- down_read(&BTRFS_I(dir)->root->fs_info->subvol_sem);
+ down_read(&fs_info->subvol_sem);
if (btrfs_root_refs(&BTRFS_I(dir)->root->root_item) == 0)
goto out_up_read;
@@ -881,7 +885,7 @@ static noinline int btrfs_mksubvol(struct path *parent,
if (!error)
fsnotify_mkdir(dir, dentry);
out_up_read:
- up_read(&BTRFS_I(dir)->root->fs_info->subvol_sem);
+ up_read(&fs_info->subvol_sem);
out_dput:
dput(dentry);
out_unlock:
@@ -1265,6 +1269,7 @@ int btrfs_defrag_file(struct inode *inode, struct file *file,
struct btrfs_ioctl_defrag_range_args *range,
u64 newer_than, unsigned long max_to_defrag)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_root *root = BTRFS_I(inode)->root;
struct file_ra_state *ra = NULL;
unsigned long last_index;
@@ -1362,8 +1367,8 @@ int btrfs_defrag_file(struct inode *inode, struct file *file,
if (!(inode->i_sb->s_flags & MS_ACTIVE))
break;
- if (btrfs_defrag_cancelled(root->fs_info)) {
- btrfs_debug(root->fs_info, "defrag_file cancelled");
+ if (btrfs_defrag_cancelled(fs_info)) {
+ btrfs_debug(fs_info, "defrag_file cancelled");
ret = -EAGAIN;
break;
}
@@ -1451,18 +1456,18 @@ int btrfs_defrag_file(struct inode *inode, struct file *file,
* we have to make sure the IO is actually started and that
* ordered extents get created before we return
*/
- atomic_inc(&root->fs_info->async_submit_draining);
- while (atomic_read(&root->fs_info->nr_async_submits) ||
- atomic_read(&root->fs_info->async_delalloc_pages)) {
- wait_event(root->fs_info->async_submit_wait,
- (atomic_read(&root->fs_info->nr_async_submits) == 0 &&
- atomic_read(&root->fs_info->async_delalloc_pages) == 0));
+ atomic_inc(&fs_info->async_submit_draining);
+ while (atomic_read(&fs_info->nr_async_submits) ||
+ atomic_read(&fs_info->async_delalloc_pages)) {
+ wait_event(fs_info->async_submit_wait,
+ (atomic_read(&fs_info->nr_async_submits) == 0 &&
+ atomic_read(&fs_info->async_delalloc_pages) == 0));
}
- atomic_dec(&root->fs_info->async_submit_draining);
+ atomic_dec(&fs_info->async_submit_draining);
}
if (range->compress_type == BTRFS_COMPRESS_LZO) {
- btrfs_set_fs_incompat(root->fs_info, COMPRESS_LZO);
+ btrfs_set_fs_incompat(fs_info, COMPRESS_LZO);
}
ret = defrag_count;
@@ -1482,10 +1487,12 @@ int btrfs_defrag_file(struct inode *inode, struct file *file,
static noinline int btrfs_ioctl_resize(struct file *file,
void __user *arg)
{
+ struct inode *inode = file_inode(file);
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
u64 new_size;
u64 old_size;
u64 devid = 1;
- struct btrfs_root *root = BTRFS_I(file_inode(file))->root;
+ struct btrfs_root *root = BTRFS_I(inode)->root;
struct btrfs_ioctl_vol_args *vol_args;
struct btrfs_trans_handle *trans;
struct btrfs_device *device = NULL;
@@ -1502,13 +1509,12 @@ static noinline int btrfs_ioctl_resize(struct file *file,
if (ret)
return ret;
- if (atomic_xchg(&root->fs_info->mutually_exclusive_operation_running,
- 1)) {
+ if (atomic_xchg(&fs_info->mutually_exclusive_operation_running, 1)) {
mnt_drop_write_file(file);
return BTRFS_ERROR_DEV_EXCL_RUN_IN_PROGRESS;
}
- mutex_lock(&root->fs_info->volume_mutex);
+ mutex_lock(&fs_info->volume_mutex);
vol_args = memdup_user(arg, sizeof(*vol_args));
if (IS_ERR(vol_args)) {
ret = PTR_ERR(vol_args);
@@ -1530,19 +1536,19 @@ static noinline int btrfs_ioctl_resize(struct file *file,
ret = -EINVAL;
goto out_free;
}
- btrfs_info(root->fs_info, "resizing devid %llu", devid);
+ btrfs_info(fs_info, "resizing devid %llu", devid);
}
- device = btrfs_find_device(root->fs_info, devid, NULL, NULL);
+ device = btrfs_find_device(fs_info, devid, NULL, NULL);
if (!device) {
- btrfs_info(root->fs_info, "resizer unable to find device %llu",
- devid);
+ btrfs_info(fs_info, "resizer unable to find device %llu",
+ devid);
ret = -ENODEV;
goto out_free;
}
if (!device->writeable) {
- btrfs_info(root->fs_info,
+ btrfs_info(fs_info,
"resizer unable to apply on readonly device %llu",
devid);
ret = -EPERM;
@@ -1596,11 +1602,11 @@ static noinline int btrfs_ioctl_resize(struct file *file,
goto out_free;
}
- new_size = div_u64(new_size, root->fs_info->sectorsize);
- new_size *= root->fs_info->sectorsize;
+ new_size = div_u64(new_size, fs_info->sectorsize);
+ new_size *= fs_info->sectorsize;
- btrfs_info_in_rcu(root->fs_info, "new size for %s is %llu",
- rcu_str_deref(device->name), new_size);
+ btrfs_info_in_rcu(fs_info, "new size for %s is %llu",
+ rcu_str_deref(device->name), new_size);
if (new_size > old_size) {
trans = btrfs_start_transaction(root, 0);
@@ -1617,8 +1623,8 @@ static noinline int btrfs_ioctl_resize(struct file *file,
out_free:
kfree(vol_args);
out:
- mutex_unlock(&root->fs_info->volume_mutex);
- atomic_set(&root->fs_info->mutually_exclusive_operation_running, 0);
+ mutex_unlock(&fs_info->volume_mutex);
+ atomic_set(&fs_info->mutually_exclusive_operation_running, 0);
mnt_drop_write_file(file);
return ret;
}
@@ -1771,6 +1777,7 @@ static noinline int btrfs_ioctl_subvol_getflags(struct file *file,
void __user *arg)
{
struct inode *inode = file_inode(file);
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_root *root = BTRFS_I(inode)->root;
int ret = 0;
u64 flags = 0;
@@ -1778,10 +1785,10 @@ static noinline int btrfs_ioctl_subvol_getflags(struct file *file,
if (btrfs_ino(inode) != BTRFS_FIRST_FREE_OBJECTID)
return -EINVAL;
- down_read(&root->fs_info->subvol_sem);
+ down_read(&fs_info->subvol_sem);
if (btrfs_root_readonly(root))
flags |= BTRFS_SUBVOL_RDONLY;
- up_read(&root->fs_info->subvol_sem);
+ up_read(&fs_info->subvol_sem);
if (copy_to_user(arg, &flags, sizeof(flags)))
ret = -EFAULT;
@@ -1793,6 +1800,7 @@ static noinline int btrfs_ioctl_subvol_setflags(struct file *file,
void __user *arg)
{
struct inode *inode = file_inode(file);
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_root *root = BTRFS_I(inode)->root;
struct btrfs_trans_handle *trans;
u64 root_flags;
@@ -1826,7 +1834,7 @@ static noinline int btrfs_ioctl_subvol_setflags(struct file *file,
goto out_drop_write;
}
- down_write(&root->fs_info->subvol_sem);
+ down_write(&fs_info->subvol_sem);
/* nothing to do */
if (!!(flags & BTRFS_SUBVOL_RDONLY) == btrfs_root_readonly(root))
@@ -1848,9 +1856,9 @@ static noinline int btrfs_ioctl_subvol_setflags(struct file *file,
spin_unlock(&root->root_item_lock);
} else {
spin_unlock(&root->root_item_lock);
- btrfs_warn(root->fs_info,
- "Attempt to set subvolume %llu read-write during send",
- root->root_key.objectid);
+ btrfs_warn(fs_info,
+ "Attempt to set subvolume %llu read-write during send",
+ root->root_key.objectid);
ret = -EPERM;
goto out_drop_sem;
}
@@ -1862,7 +1870,7 @@ static noinline int btrfs_ioctl_subvol_setflags(struct file *file,
goto out_reset;
}
- ret = btrfs_update_root(trans, root->fs_info->tree_root,
+ ret = btrfs_update_root(trans, fs_info->tree_root,
&root->root_key, &root->root_item);
btrfs_commit_transaction(trans, root);
@@ -1870,7 +1878,7 @@ static noinline int btrfs_ioctl_subvol_setflags(struct file *file,
if (ret)
btrfs_set_root_flags(&root->root_item, root_flags);
out_drop_sem:
- up_write(&root->fs_info->subvol_sem);
+ up_write(&fs_info->subvol_sem);
out_drop_write:
mnt_drop_write_file(file);
out:
@@ -1882,6 +1890,7 @@ static noinline int btrfs_ioctl_subvol_setflags(struct file *file,
*/
static noinline int may_destroy_subvol(struct btrfs_root *root)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_path *path;
struct btrfs_dir_item *di;
struct btrfs_key key;
@@ -1893,14 +1902,14 @@ static noinline int may_destroy_subvol(struct btrfs_root *root)
return -ENOMEM;
/* Make sure this root isn't set as the default subvol */
- dir_id = btrfs_super_root_dir(root->fs_info->super_copy);
- di = btrfs_lookup_dir_item(NULL, root->fs_info->tree_root, path,
+ dir_id = btrfs_super_root_dir(fs_info->super_copy);
+ di = btrfs_lookup_dir_item(NULL, fs_info->tree_root, path,
dir_id, "default", 7, 0);
if (di && !IS_ERR(di)) {
btrfs_dir_item_key_to_cpu(path->nodes[0], di, &key);
if (key.objectid == root->root_key.objectid) {
ret = -EPERM;
- btrfs_err(root->fs_info,
+ btrfs_err(fs_info,
"deleting default subvolume %llu is not allowed",
key.objectid);
goto out;
@@ -1912,8 +1921,7 @@ static noinline int may_destroy_subvol(struct btrfs_root *root)
key.type = BTRFS_ROOT_REF_KEY;
key.offset = (u64)-1;
- ret = btrfs_search_slot(NULL, root->fs_info->tree_root,
- &key, path, 0, 0);
+ ret = btrfs_search_slot(NULL, fs_info->tree_root, &key, path, 0, 0);
if (ret < 0)
goto out;
BUG_ON(ret == 0);
@@ -2084,10 +2092,10 @@ static noinline int search_ioctl(struct inode *inode,
size_t *buf_size,
char __user *ubuf)
{
+ struct btrfs_fs_info *info = btrfs_sb(inode->i_sb);
struct btrfs_root *root;
struct btrfs_key key;
struct btrfs_path *path;
- struct btrfs_fs_info *info = BTRFS_I(inode)->root->fs_info;
int ret;
int num_found = 0;
unsigned long sk_offset = 0;
@@ -2350,6 +2358,7 @@ static noinline int btrfs_ioctl_snap_destroy(struct file *file,
void __user *arg)
{
struct dentry *parent = file->f_path.dentry;
+ struct btrfs_fs_info *fs_info = btrfs_sb(parent->d_sb);
struct dentry *dentry;
struct inode *dir = d_inode(parent);
struct inode *inode;
@@ -2415,7 +2424,7 @@ static noinline int btrfs_ioctl_snap_destroy(struct file *file,
* rmdir(2).
*/
err = -EPERM;
- if (!btrfs_test_opt(root->fs_info, USER_SUBVOL_RM_ALLOWED))
+ if (!btrfs_test_opt(fs_info, USER_SUBVOL_RM_ALLOWED))
goto out_dput;
/*
@@ -2459,14 +2468,14 @@ static noinline int btrfs_ioctl_snap_destroy(struct file *file,
spin_unlock(&dest->root_item_lock);
} else {
spin_unlock(&dest->root_item_lock);
- btrfs_warn(root->fs_info,
- "Attempt to delete subvolume %llu during send",
- dest->root_key.objectid);
+ btrfs_warn(fs_info,
+ "Attempt to delete subvolume %llu during send",
+ dest->root_key.objectid);
err = -EPERM;
goto out_unlock_inode;
}
- down_write(&root->fs_info->subvol_sem);
+ down_write(&fs_info->subvol_sem);
err = may_destroy_subvol(dest);
if (err)
@@ -2511,7 +2520,7 @@ static noinline int btrfs_ioctl_snap_destroy(struct file *file,
if (!test_and_set_bit(BTRFS_ROOT_ORPHAN_ITEM_INSERTED, &dest->state)) {
ret = btrfs_insert_orphan_item(trans,
- root->fs_info->tree_root,
+ fs_info->tree_root,
dest->root_key.objectid);
if (ret) {
btrfs_abort_transaction(trans, ret);
@@ -2520,7 +2529,7 @@ static noinline int btrfs_ioctl_snap_destroy(struct file *file,
}
}
- ret = btrfs_uuid_tree_rem(trans, root->fs_info, dest->root_item.uuid,
+ ret = btrfs_uuid_tree_rem(trans, fs_info, dest->root_item.uuid,
BTRFS_UUID_KEY_SUBVOL,
dest->root_key.objectid);
if (ret && ret != -ENOENT) {
@@ -2529,7 +2538,7 @@ static noinline int btrfs_ioctl_snap_destroy(struct file *file,
goto out_end_trans;
}
if (!btrfs_is_empty_uuid(dest->root_item.received_uuid)) {
- ret = btrfs_uuid_tree_rem(trans, root->fs_info,
+ ret = btrfs_uuid_tree_rem(trans, fs_info,
dest->root_item.received_uuid,
BTRFS_UUID_KEY_RECEIVED_SUBVOL,
dest->root_key.objectid);
@@ -2550,7 +2559,7 @@ static noinline int btrfs_ioctl_snap_destroy(struct file *file,
out_release:
btrfs_subvolume_release_metadata(root, &block_rsv, qgroup_reserved);
out_up_write:
- up_write(&root->fs_info->subvol_sem);
+ up_write(&fs_info->subvol_sem);
if (err) {
spin_lock(&dest->root_item_lock);
root_flags = btrfs_root_flags(&dest->root_item);
@@ -2654,18 +2663,17 @@ static int btrfs_ioctl_defrag(struct file *file, void __user *argp)
static long btrfs_ioctl_add_dev(struct btrfs_root *root, void __user *arg)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_ioctl_vol_args *vol_args;
int ret;
if (!capable(CAP_SYS_ADMIN))
return -EPERM;
- if (atomic_xchg(&root->fs_info->mutually_exclusive_operation_running,
- 1)) {
+ if (atomic_xchg(&fs_info->mutually_exclusive_operation_running, 1))
return BTRFS_ERROR_DEV_EXCL_RUN_IN_PROGRESS;
- }
- mutex_lock(&root->fs_info->volume_mutex);
+ mutex_lock(&fs_info->volume_mutex);
vol_args = memdup_user(arg, sizeof(*vol_args));
if (IS_ERR(vol_args)) {
ret = PTR_ERR(vol_args);
@@ -2676,18 +2684,20 @@ static long btrfs_ioctl_add_dev(struct btrfs_root *root, void __user *arg)
ret = btrfs_init_new_device(root->fs_info, vol_args->name);
if (!ret)
- btrfs_info(root->fs_info, "disk added %s",vol_args->name);
+ btrfs_info(fs_info, "disk added %s", vol_args->name);
kfree(vol_args);
out:
- mutex_unlock(&root->fs_info->volume_mutex);
- atomic_set(&root->fs_info->mutually_exclusive_operation_running, 0);
+ mutex_unlock(&fs_info->volume_mutex);
+ atomic_set(&fs_info->mutually_exclusive_operation_running, 0);
return ret;
}
static long btrfs_ioctl_rm_dev_v2(struct file *file, void __user *arg)
{
- struct btrfs_root *root = BTRFS_I(file_inode(file))->root;
+ struct inode *inode = file_inode(file);
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
+ struct btrfs_root *root = BTRFS_I(inode)->root;
struct btrfs_ioctl_vol_args_v2 *vol_args;
int ret;
@@ -2708,28 +2718,27 @@ static long btrfs_ioctl_rm_dev_v2(struct file *file, void __user *arg)
if (vol_args->flags & ~BTRFS_VOL_ARG_V2_FLAGS_SUPPORTED)
return -EOPNOTSUPP;
- if (atomic_xchg(&root->fs_info->mutually_exclusive_operation_running,
- 1)) {
+ if (atomic_xchg(&fs_info->mutually_exclusive_operation_running, 1)) {
ret = BTRFS_ERROR_DEV_EXCL_RUN_IN_PROGRESS;
goto out;
}
- mutex_lock(&root->fs_info->volume_mutex);
+ mutex_lock(&fs_info->volume_mutex);
if (vol_args->flags & BTRFS_DEVICE_SPEC_BY_ID) {
ret = btrfs_rm_device(root, NULL, vol_args->devid);
} else {
vol_args->name[BTRFS_SUBVOL_NAME_MAX] = '\0';
ret = btrfs_rm_device(root, vol_args->name, 0);
}
- mutex_unlock(&root->fs_info->volume_mutex);
- atomic_set(&root->fs_info->mutually_exclusive_operation_running, 0);
+ mutex_unlock(&fs_info->volume_mutex);
+ atomic_set(&fs_info->mutually_exclusive_operation_running, 0);
if (!ret) {
if (vol_args->flags & BTRFS_DEVICE_SPEC_BY_ID)
- btrfs_info(root->fs_info, "device deleted: id %llu",
+ btrfs_info(fs_info, "device deleted: id %llu",
vol_args->devid);
else
- btrfs_info(root->fs_info, "device deleted: %s",
+ btrfs_info(fs_info, "device deleted: %s",
vol_args->name);
}
out:
@@ -2741,7 +2750,9 @@ static long btrfs_ioctl_rm_dev_v2(struct file *file, void __user *arg)
static long btrfs_ioctl_rm_dev(struct file *file, void __user *arg)
{
- struct btrfs_root *root = BTRFS_I(file_inode(file))->root;
+ struct inode *inode = file_inode(file);
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
+ struct btrfs_root *root = BTRFS_I(inode)->root;
struct btrfs_ioctl_vol_args *vol_args;
int ret;
@@ -2752,8 +2763,7 @@ static long btrfs_ioctl_rm_dev(struct file *file, void __user *arg)
if (ret)
return ret;
- if (atomic_xchg(&root->fs_info->mutually_exclusive_operation_running,
- 1)) {
+ if (atomic_xchg(&fs_info->mutually_exclusive_operation_running, 1)) {
ret = BTRFS_ERROR_DEV_EXCL_RUN_IN_PROGRESS;
goto out_drop_write;
}
@@ -2765,15 +2775,15 @@ static long btrfs_ioctl_rm_dev(struct file *file, void __user *arg)
}
vol_args->name[BTRFS_PATH_NAME_MAX] = '\0';
- mutex_lock(&root->fs_info->volume_mutex);
+ mutex_lock(&fs_info->volume_mutex);
ret = btrfs_rm_device(root, vol_args->name, 0);
- mutex_unlock(&root->fs_info->volume_mutex);
+ mutex_unlock(&fs_info->volume_mutex);
if (!ret)
- btrfs_info(root->fs_info, "disk deleted %s",vol_args->name);
+ btrfs_info(fs_info, "disk deleted %s", vol_args->name);
kfree(vol_args);
out:
- atomic_set(&root->fs_info->mutually_exclusive_operation_running, 0);
+ atomic_set(&fs_info->mutually_exclusive_operation_running, 0);
out_drop_write:
mnt_drop_write_file(file);
@@ -2782,9 +2792,10 @@ static long btrfs_ioctl_rm_dev(struct file *file, void __user *arg)
static long btrfs_ioctl_fs_info(struct btrfs_root *root, void __user *arg)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_ioctl_fs_info_args *fi_args;
struct btrfs_device *device;
- struct btrfs_fs_devices *fs_devices = root->fs_info->fs_devices;
+ struct btrfs_fs_devices *fs_devices = fs_info->fs_devices;
int ret = 0;
fi_args = kzalloc(sizeof(*fi_args), GFP_KERNEL);
@@ -2793,7 +2804,7 @@ static long btrfs_ioctl_fs_info(struct btrfs_root *root, void __user *arg)
mutex_lock(&fs_devices->device_list_mutex);
fi_args->num_devices = fs_devices->num_devices;
- memcpy(&fi_args->fsid, root->fs_info->fsid, sizeof(fi_args->fsid));
+ memcpy(&fi_args->fsid, fs_info->fsid, sizeof(fi_args->fsid));
list_for_each_entry(device, &fs_devices->devices, dev_list) {
if (device->devid > fi_args->max_id)
@@ -2801,9 +2812,9 @@ static long btrfs_ioctl_fs_info(struct btrfs_root *root, void __user *arg)
}
mutex_unlock(&fs_devices->device_list_mutex);
- fi_args->nodesize = root->fs_info->super_copy->nodesize;
- fi_args->sectorsize = root->fs_info->super_copy->sectorsize;
- fi_args->clone_alignment = root->fs_info->super_copy->sectorsize;
+ fi_args->nodesize = fs_info->super_copy->nodesize;
+ fi_args->sectorsize = fs_info->super_copy->sectorsize;
+ fi_args->clone_alignment = fs_info->super_copy->sectorsize;
if (copy_to_user(arg, fi_args, sizeof(*fi_args)))
ret = -EFAULT;
@@ -2814,9 +2825,10 @@ static long btrfs_ioctl_fs_info(struct btrfs_root *root, void __user *arg)
static long btrfs_ioctl_dev_info(struct btrfs_root *root, void __user *arg)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_ioctl_dev_info_args *di_args;
struct btrfs_device *dev;
- struct btrfs_fs_devices *fs_devices = root->fs_info->fs_devices;
+ struct btrfs_fs_devices *fs_devices = fs_info->fs_devices;
int ret = 0;
char *s_uuid = NULL;
@@ -2828,7 +2840,7 @@ static long btrfs_ioctl_dev_info(struct btrfs_root *root, void __user *arg)
s_uuid = di_args->uuid;
mutex_lock(&fs_devices->device_list_mutex);
- dev = btrfs_find_device(root->fs_info, di_args->devid, s_uuid, NULL);
+ dev = btrfs_find_device(fs_info, di_args->devid, s_uuid, NULL);
if (!dev) {
ret = -ENODEV;
@@ -3403,9 +3415,10 @@ static int clone_copy_inline_extent(struct inode *src,
const u64 size,
char *inline_data)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(dst->i_sb);
struct btrfs_root *root = BTRFS_I(dst)->root;
const u64 aligned_end = ALIGN(new_key->offset + datal,
- root->fs_info->sectorsize);
+ fs_info->sectorsize);
int ret;
struct btrfs_key key;
@@ -3526,6 +3539,7 @@ static int btrfs_clone(struct inode *src, struct inode *inode,
const u64 off, const u64 olen, const u64 olen_aligned,
const u64 destoff, int no_time_update)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_root *root = BTRFS_I(inode)->root;
struct btrfs_path *path = NULL;
struct extent_buffer *leaf;
@@ -3539,10 +3553,9 @@ static int btrfs_clone(struct inode *src, struct inode *inode,
u64 last_dest_end = destoff;
ret = -ENOMEM;
- buf = kmalloc(root->fs_info->nodesize,
- GFP_KERNEL | __GFP_NOWARN);
+ buf = kmalloc(fs_info->nodesize, GFP_KERNEL | __GFP_NOWARN);
if (!buf) {
- buf = vmalloc(root->fs_info->nodesize);
+ buf = vmalloc(fs_info->nodesize);
if (!buf)
return ret;
}
@@ -3800,7 +3813,7 @@ static int btrfs_clone(struct inode *src, struct inode *inode,
btrfs_release_path(path);
last_dest_end = ALIGN(new_key.offset + datal,
- root->fs_info->sectorsize);
+ fs_info->sectorsize);
ret = clone_finish_inode_update(trans, inode,
last_dest_end,
destoff, olen,
@@ -3861,10 +3874,11 @@ static noinline int btrfs_clone_files(struct file *file, struct file *file_src,
{
struct inode *inode = file_inode(file);
struct inode *src = file_inode(file_src);
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_root *root = BTRFS_I(inode)->root;
int ret;
u64 len = olen;
- u64 bs = root->fs_info->sb->s_blocksize;
+ u64 bs = fs_info->sb->s_blocksize;
int same_inode = src == inode;
/*
@@ -4005,6 +4019,7 @@ int btrfs_clone_file_range(struct file *src_file, loff_t off,
static long btrfs_ioctl_trans_start(struct file *file)
{
struct inode *inode = file_inode(file);
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_root *root = BTRFS_I(inode)->root;
struct btrfs_trans_handle *trans;
int ret;
@@ -4025,7 +4040,7 @@ static long btrfs_ioctl_trans_start(struct file *file)
if (ret)
goto out;
- atomic_inc(&root->fs_info->open_ioctl_trans);
+ atomic_inc(&fs_info->open_ioctl_trans);
ret = -ENOMEM;
trans = btrfs_start_ioctl_transaction(root);
@@ -4036,7 +4051,7 @@ static long btrfs_ioctl_trans_start(struct file *file)
return 0;
out_drop:
- atomic_dec(&root->fs_info->open_ioctl_trans);
+ atomic_dec(&fs_info->open_ioctl_trans);
mnt_drop_write_file(file);
out:
return ret;
@@ -4045,6 +4060,7 @@ static long btrfs_ioctl_trans_start(struct file *file)
static long btrfs_ioctl_default_subvol(struct file *file, void __user *argp)
{
struct inode *inode = file_inode(file);
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_root *root = BTRFS_I(inode)->root;
struct btrfs_root *new_root;
struct btrfs_dir_item *di;
@@ -4075,7 +4091,7 @@ static long btrfs_ioctl_default_subvol(struct file *file, void __user *argp)
location.type = BTRFS_ROOT_ITEM_KEY;
location.offset = (u64)-1;
- new_root = btrfs_read_fs_root_no_name(root->fs_info, &location);
+ new_root = btrfs_read_fs_root_no_name(fs_info, &location);
if (IS_ERR(new_root)) {
ret = PTR_ERR(new_root);
goto out;
@@ -4095,13 +4111,13 @@ static long btrfs_ioctl_default_subvol(struct file *file, void __user *argp)
goto out;
}
- dir_id = btrfs_super_root_dir(root->fs_info->super_copy);
- di = btrfs_lookup_dir_item(trans, root->fs_info->tree_root, path,
+ dir_id = btrfs_super_root_dir(fs_info->super_copy);
+ di = btrfs_lookup_dir_item(trans, fs_info->tree_root, path,
dir_id, "default", 7, 1);
if (IS_ERR_OR_NULL(di)) {
btrfs_free_path(path);
btrfs_end_transaction(trans, root);
- btrfs_err(new_root->fs_info,
+ btrfs_err(fs_info,
"Umm, you don't have the default diritem, this isn't going to work");
ret = -ENOENT;
goto out;
@@ -4112,7 +4128,7 @@ static long btrfs_ioctl_default_subvol(struct file *file, void __user *argp)
btrfs_mark_buffer_dirty(path->nodes[0]);
btrfs_free_path(path);
- btrfs_set_fs_incompat(root->fs_info, DEFAULT_SUBVOL);
+ btrfs_set_fs_incompat(fs_info, DEFAULT_SUBVOL);
btrfs_end_transaction(trans, root);
out:
mnt_drop_write_file(file);
@@ -4137,6 +4153,7 @@ void btrfs_get_block_group_info(struct list_head *groups_list,
static long btrfs_ioctl_space_info(struct btrfs_root *root, void __user *arg)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_ioctl_space_args space_args;
struct btrfs_ioctl_space_info space;
struct btrfs_ioctl_space_info *dest;
@@ -4163,7 +4180,7 @@ static long btrfs_ioctl_space_info(struct btrfs_root *root, void __user *arg)
info = NULL;
rcu_read_lock();
- list_for_each_entry_rcu(tmp, &root->fs_info->space_info,
+ list_for_each_entry_rcu(tmp, &fs_info->space_info,
list) {
if (tmp->flags == types[i]) {
info = tmp;
@@ -4219,7 +4236,7 @@ static long btrfs_ioctl_space_info(struct btrfs_root *root, void __user *arg)
info = NULL;
rcu_read_lock();
- list_for_each_entry_rcu(tmp, &root->fs_info->space_info,
+ list_for_each_entry_rcu(tmp, &fs_info->space_info,
list) {
if (tmp->flags == types[i]) {
info = tmp;
@@ -4250,7 +4267,7 @@ static long btrfs_ioctl_space_info(struct btrfs_root *root, void __user *arg)
* Add global block reserve
*/
if (slot_count) {
- struct btrfs_block_rsv *block_rsv = &root->fs_info->global_block_rsv;
+ struct btrfs_block_rsv *block_rsv = &fs_info->global_block_rsv;
spin_lock(&block_rsv->lock);
space.total_bytes = block_rsv->size;
@@ -4345,7 +4362,7 @@ static noinline long btrfs_ioctl_wait_sync(struct btrfs_root *root,
static long btrfs_ioctl_scrub(struct file *file, void __user *arg)
{
- struct btrfs_root *root = BTRFS_I(file_inode(file))->root;
+ struct btrfs_fs_info *fs_info = btrfs_sb(file_inode(file)->i_sb);
struct btrfs_ioctl_scrub_args *sa;
int ret;
@@ -4362,7 +4379,7 @@ static long btrfs_ioctl_scrub(struct file *file, void __user *arg)
goto out;
}
- ret = btrfs_scrub_dev(root->fs_info, sa->devid, sa->start, sa->end,
+ ret = btrfs_scrub_dev(fs_info, sa->devid, sa->start, sa->end,
&sa->progress, sa->flags & BTRFS_SCRUB_READONLY,
0);
@@ -4432,6 +4449,7 @@ static long btrfs_ioctl_get_dev_stats(struct btrfs_root *root,
static long btrfs_ioctl_dev_replace(struct btrfs_root *root, void __user *arg)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_ioctl_dev_replace_args *p;
int ret;
@@ -4444,27 +4462,25 @@ static long btrfs_ioctl_dev_replace(struct btrfs_root *root, void __user *arg)
switch (p->cmd) {
case BTRFS_IOCTL_DEV_REPLACE_CMD_START:
- if (root->fs_info->sb->s_flags & MS_RDONLY) {
+ if (fs_info->sb->s_flags & MS_RDONLY) {
ret = -EROFS;
goto out;
}
if (atomic_xchg(
- &root->fs_info->mutually_exclusive_operation_running,
- 1)) {
+ &fs_info->mutually_exclusive_operation_running, 1)) {
ret = BTRFS_ERROR_DEV_EXCL_RUN_IN_PROGRESS;
} else {
ret = btrfs_dev_replace_by_ioctl(root, p);
atomic_set(
- &root->fs_info->mutually_exclusive_operation_running,
- 0);
+ &fs_info->mutually_exclusive_operation_running, 0);
}
break;
case BTRFS_IOCTL_DEV_REPLACE_CMD_STATUS:
- btrfs_dev_replace_status(root->fs_info, p);
+ btrfs_dev_replace_status(fs_info, p);
ret = 0;
break;
case BTRFS_IOCTL_DEV_REPLACE_CMD_CANCEL:
- ret = btrfs_dev_replace_cancel(root->fs_info, p);
+ ret = btrfs_dev_replace_cancel(fs_info, p);
break;
default:
ret = -EINVAL;
@@ -4785,14 +4801,16 @@ static long btrfs_ioctl_balance(struct file *file, void __user *arg)
static long btrfs_ioctl_balance_ctl(struct btrfs_root *root, int cmd)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
+
if (!capable(CAP_SYS_ADMIN))
return -EPERM;
switch (cmd) {
case BTRFS_BALANCE_CTL_PAUSE:
- return btrfs_pause_balance(root->fs_info);
+ return btrfs_pause_balance(fs_info);
case BTRFS_BALANCE_CTL_CANCEL:
- return btrfs_cancel_balance(root->fs_info);
+ return btrfs_cancel_balance(fs_info);
}
return -EINVAL;
@@ -4833,7 +4851,8 @@ static long btrfs_ioctl_balance_progress(struct btrfs_root *root,
static long btrfs_ioctl_quota_ctl(struct file *file, void __user *arg)
{
- struct btrfs_root *root = BTRFS_I(file_inode(file))->root;
+ struct inode *inode = file_inode(file);
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_ioctl_quota_ctl_args *sa;
struct btrfs_trans_handle *trans = NULL;
int ret;
@@ -4852,8 +4871,8 @@ static long btrfs_ioctl_quota_ctl(struct file *file, void __user *arg)
goto drop_write;
}
- down_write(&root->fs_info->subvol_sem);
- trans = btrfs_start_transaction(root->fs_info->tree_root, 2);
+ down_write(&fs_info->subvol_sem);
+ trans = btrfs_start_transaction(fs_info->tree_root, 2);
if (IS_ERR(trans)) {
ret = PTR_ERR(trans);
goto out;
@@ -4861,22 +4880,22 @@ static long btrfs_ioctl_quota_ctl(struct file *file, void __user *arg)
switch (sa->cmd) {
case BTRFS_QUOTA_CTL_ENABLE:
- ret = btrfs_quota_enable(trans, root->fs_info);
+ ret = btrfs_quota_enable(trans, fs_info);
break;
case BTRFS_QUOTA_CTL_DISABLE:
- ret = btrfs_quota_disable(trans, root->fs_info);
+ ret = btrfs_quota_disable(trans, fs_info);
break;
default:
ret = -EINVAL;
break;
}
- err = btrfs_commit_transaction(trans, root->fs_info->tree_root);
+ err = btrfs_commit_transaction(trans, fs_info->tree_root);
if (err && !ret)
ret = err;
out:
kfree(sa);
- up_write(&root->fs_info->subvol_sem);
+ up_write(&fs_info->subvol_sem);
drop_write:
mnt_drop_write_file(file);
return ret;
@@ -4884,7 +4903,9 @@ static long btrfs_ioctl_quota_ctl(struct file *file, void __user *arg)
static long btrfs_ioctl_qgroup_assign(struct file *file, void __user *arg)
{
- struct btrfs_root *root = BTRFS_I(file_inode(file))->root;
+ struct inode *inode = file_inode(file);
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
+ struct btrfs_root *root = BTRFS_I(inode)->root;
struct btrfs_ioctl_qgroup_assign_args *sa;
struct btrfs_trans_handle *trans;
int ret;
@@ -4911,18 +4932,18 @@ static long btrfs_ioctl_qgroup_assign(struct file *file, void __user *arg)
/* FIXME: check if the IDs really exist */
if (sa->assign) {
- ret = btrfs_add_qgroup_relation(trans, root->fs_info,
+ ret = btrfs_add_qgroup_relation(trans, fs_info,
sa->src, sa->dst);
} else {
- ret = btrfs_del_qgroup_relation(trans, root->fs_info,
+ ret = btrfs_del_qgroup_relation(trans, fs_info,
sa->src, sa->dst);
}
/* update qgroup status and info */
- err = btrfs_run_qgroups(trans, root->fs_info);
+ err = btrfs_run_qgroups(trans, fs_info);
if (err < 0)
- btrfs_handle_fs_error(root->fs_info, err,
- "failed to update qgroup status and info");
+ btrfs_handle_fs_error(fs_info, err,
+ "failed to update qgroup status and info");
err = btrfs_end_transaction(trans, root);
if (err && !ret)
ret = err;
@@ -4936,7 +4957,9 @@ static long btrfs_ioctl_qgroup_assign(struct file *file, void __user *arg)
static long btrfs_ioctl_qgroup_create(struct file *file, void __user *arg)
{
- struct btrfs_root *root = BTRFS_I(file_inode(file))->root;
+ struct inode *inode = file_inode(file);
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
+ struct btrfs_root *root = BTRFS_I(inode)->root;
struct btrfs_ioctl_qgroup_create_args *sa;
struct btrfs_trans_handle *trans;
int ret;
@@ -4968,9 +4991,9 @@ static long btrfs_ioctl_qgroup_create(struct file *file, void __user *arg)
/* FIXME: check if the IDs really exist */
if (sa->create) {
- ret = btrfs_create_qgroup(trans, root->fs_info, sa->qgroupid);
+ ret = btrfs_create_qgroup(trans, fs_info, sa->qgroupid);
} else {
- ret = btrfs_remove_qgroup(trans, root->fs_info, sa->qgroupid);
+ ret = btrfs_remove_qgroup(trans, fs_info, sa->qgroupid);
}
err = btrfs_end_transaction(trans, root);
@@ -4986,7 +5009,9 @@ static long btrfs_ioctl_qgroup_create(struct file *file, void __user *arg)
static long btrfs_ioctl_qgroup_limit(struct file *file, void __user *arg)
{
- struct btrfs_root *root = BTRFS_I(file_inode(file))->root;
+ struct inode *inode = file_inode(file);
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
+ struct btrfs_root *root = BTRFS_I(inode)->root;
struct btrfs_ioctl_qgroup_limit_args *sa;
struct btrfs_trans_handle *trans;
int ret;
@@ -5019,7 +5044,7 @@ static long btrfs_ioctl_qgroup_limit(struct file *file, void __user *arg)
}
/* FIXME: check if the IDs really exist */
- ret = btrfs_limit_qgroup(trans, root->fs_info, qgroupid, &sa->lim);
+ ret = btrfs_limit_qgroup(trans, fs_info, qgroupid, &sa->lim);
err = btrfs_end_transaction(trans, root);
if (err && !ret)
@@ -5034,7 +5059,8 @@ static long btrfs_ioctl_qgroup_limit(struct file *file, void __user *arg)
static long btrfs_ioctl_quota_rescan(struct file *file, void __user *arg)
{
- struct btrfs_root *root = BTRFS_I(file_inode(file))->root;
+ struct inode *inode = file_inode(file);
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_ioctl_quota_rescan_args *qsa;
int ret;
@@ -5056,7 +5082,7 @@ static long btrfs_ioctl_quota_rescan(struct file *file, void __user *arg)
goto out;
}
- ret = btrfs_qgroup_rescan(root->fs_info);
+ ret = btrfs_qgroup_rescan(fs_info);
out:
kfree(qsa);
@@ -5067,7 +5093,8 @@ static long btrfs_ioctl_quota_rescan(struct file *file, void __user *arg)
static long btrfs_ioctl_quota_rescan_status(struct file *file, void __user *arg)
{
- struct btrfs_root *root = BTRFS_I(file_inode(file))->root;
+ struct inode *inode = file_inode(file);
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_ioctl_quota_rescan_args *qsa;
int ret = 0;
@@ -5078,9 +5105,9 @@ static long btrfs_ioctl_quota_rescan_status(struct file *file, void __user *arg)
if (!qsa)
return -ENOMEM;
- if (root->fs_info->qgroup_flags & BTRFS_QGROUP_STATUS_FLAG_RESCAN) {
+ if (fs_info->qgroup_flags & BTRFS_QGROUP_STATUS_FLAG_RESCAN) {
qsa->flags = 1;
- qsa->progress = root->fs_info->qgroup_rescan_progress.objectid;
+ qsa->progress = fs_info->qgroup_rescan_progress.objectid;
}
if (copy_to_user(arg, qsa, sizeof(*qsa)))
@@ -5092,18 +5119,20 @@ static long btrfs_ioctl_quota_rescan_status(struct file *file, void __user *arg)
static long btrfs_ioctl_quota_rescan_wait(struct file *file, void __user *arg)
{
- struct btrfs_root *root = BTRFS_I(file_inode(file))->root;
+ struct inode *inode = file_inode(file);
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
if (!capable(CAP_SYS_ADMIN))
return -EPERM;
- return btrfs_qgroup_wait_for_completion(root->fs_info, true);
+ return btrfs_qgroup_wait_for_completion(fs_info, true);
}
static long _btrfs_ioctl_set_received_subvol(struct file *file,
struct btrfs_ioctl_received_subvol_args *sa)
{
struct inode *inode = file_inode(file);
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_root *root = BTRFS_I(inode)->root;
struct btrfs_root_item *root_item = &root->root_item;
struct btrfs_trans_handle *trans;
@@ -5118,7 +5147,7 @@ static long _btrfs_ioctl_set_received_subvol(struct file *file,
if (ret < 0)
return ret;
- down_write(&root->fs_info->subvol_sem);
+ down_write(&fs_info->subvol_sem);
if (btrfs_ino(inode) != BTRFS_FIRST_FREE_OBJECTID) {
ret = -EINVAL;
@@ -5149,8 +5178,7 @@ static long _btrfs_ioctl_set_received_subvol(struct file *file,
BTRFS_UUID_SIZE);
if (received_uuid_changed &&
!btrfs_is_empty_uuid(root_item->received_uuid))
- btrfs_uuid_tree_rem(trans, root->fs_info,
- root_item->received_uuid,
+ btrfs_uuid_tree_rem(trans, fs_info, root_item->received_uuid,
BTRFS_UUID_KEY_RECEIVED_SUBVOL,
root->root_key.objectid);
memcpy(root_item->received_uuid, sa->uuid, BTRFS_UUID_SIZE);
@@ -5161,14 +5189,14 @@ static long _btrfs_ioctl_set_received_subvol(struct file *file,
btrfs_set_stack_timespec_sec(&root_item->rtime, sa->rtime.sec);
btrfs_set_stack_timespec_nsec(&root_item->rtime, sa->rtime.nsec);
- ret = btrfs_update_root(trans, root->fs_info->tree_root,
+ ret = btrfs_update_root(trans, fs_info->tree_root,
&root->root_key, &root->root_item);
if (ret < 0) {
btrfs_end_transaction(trans, root);
goto out;
}
if (received_uuid_changed && !btrfs_is_empty_uuid(sa->uuid)) {
- ret = btrfs_uuid_tree_add(trans, root->fs_info, sa->uuid,
+ ret = btrfs_uuid_tree_add(trans, fs_info, sa->uuid,
BTRFS_UUID_KEY_RECEIVED_SUBVOL,
root->root_key.objectid);
if (ret < 0 && ret != -EEXIST) {
@@ -5183,7 +5211,7 @@ static long _btrfs_ioctl_set_received_subvol(struct file *file,
}
out:
- up_write(&root->fs_info->subvol_sem);
+ up_write(&fs_info->subvol_sem);
mnt_drop_write_file(file);
return ret;
}
@@ -5265,20 +5293,22 @@ static long btrfs_ioctl_set_received_subvol(struct file *file,
static int btrfs_ioctl_get_fslabel(struct file *file, void __user *arg)
{
- struct btrfs_root *root = BTRFS_I(file_inode(file))->root;
+ struct inode *inode = file_inode(file);
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
size_t len;
int ret;
char label[BTRFS_LABEL_SIZE];
- spin_lock(&root->fs_info->super_lock);
- memcpy(label, root->fs_info->super_copy->label, BTRFS_LABEL_SIZE);
- spin_unlock(&root->fs_info->super_lock);
+ spin_lock(&fs_info->super_lock);
+ memcpy(label, fs_info->super_copy->label, BTRFS_LABEL_SIZE);
+ spin_unlock(&fs_info->super_lock);
len = strnlen(label, BTRFS_LABEL_SIZE);
if (len == BTRFS_LABEL_SIZE) {
- btrfs_warn(root->fs_info,
- "label is too long, return the first %zu bytes", --len);
+ btrfs_warn(fs_info,
+ "label is too long, return the first %zu bytes",
+ --len);
}
ret = copy_to_user(arg, label, len);
@@ -5288,8 +5318,10 @@ static int btrfs_ioctl_get_fslabel(struct file *file, void __user *arg)
static int btrfs_ioctl_set_fslabel(struct file *file, void __user *arg)
{
- struct btrfs_root *root = BTRFS_I(file_inode(file))->root;
- struct btrfs_super_block *super_block = root->fs_info->super_copy;
+ struct inode *inode = file_inode(file);
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
+ struct btrfs_root *root = BTRFS_I(inode)->root;
+ struct btrfs_super_block *super_block = fs_info->super_copy;
struct btrfs_trans_handle *trans;
char label[BTRFS_LABEL_SIZE];
int ret;
@@ -5301,7 +5333,7 @@ static int btrfs_ioctl_set_fslabel(struct file *file, void __user *arg)
return -EFAULT;
if (strnlen(label, BTRFS_LABEL_SIZE) == BTRFS_LABEL_SIZE) {
- btrfs_err(root->fs_info,
+ btrfs_err(fs_info,
"unable to set label with more than %d bytes",
BTRFS_LABEL_SIZE - 1);
return -EINVAL;
@@ -5317,9 +5349,9 @@ static int btrfs_ioctl_set_fslabel(struct file *file, void __user *arg)
goto out_unlock;
}
- spin_lock(&root->fs_info->super_lock);
+ spin_lock(&fs_info->super_lock);
strcpy(super_block->label, label);
- spin_unlock(&root->fs_info->super_lock);
+ spin_unlock(&fs_info->super_lock);
ret = btrfs_commit_transaction(trans, root);
out_unlock:
@@ -5348,8 +5380,9 @@ int btrfs_ioctl_get_supported_features(void __user *arg)
static int btrfs_ioctl_get_features(struct file *file, void __user *arg)
{
- struct btrfs_root *root = BTRFS_I(file_inode(file))->root;
- struct btrfs_super_block *super_block = root->fs_info->super_copy;
+ struct inode *inode = file_inode(file);
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
+ struct btrfs_super_block *super_block = fs_info->super_copy;
struct btrfs_ioctl_feature_flags features;
features.compat_flags = btrfs_super_compat_flags(super_block);
@@ -5367,6 +5400,7 @@ static int check_feature_bits(struct btrfs_root *root,
u64 change_mask, u64 flags, u64 supported_flags,
u64 safe_set, u64 safe_clear)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
const char *type = btrfs_feature_set_names[set];
char *names;
u64 disallowed, unsupported;
@@ -5377,14 +5411,14 @@ static int check_feature_bits(struct btrfs_root *root,
if (unsupported) {
names = btrfs_printable_features(set, unsupported);
if (names) {
- btrfs_warn(root->fs_info,
- "this kernel does not support the %s feature bit%s",
- names, strchr(names, ',') ? "s" : "");
+ btrfs_warn(fs_info,
+ "this kernel does not support the %s feature bit%s",
+ names, strchr(names, ',') ? "s" : "");
kfree(names);
} else
- btrfs_warn(root->fs_info,
- "this kernel does not support %s bits 0x%llx",
- type, unsupported);
+ btrfs_warn(fs_info,
+ "this kernel does not support %s bits 0x%llx",
+ type, unsupported);
return -EOPNOTSUPP;
}
@@ -5392,14 +5426,14 @@ static int check_feature_bits(struct btrfs_root *root,
if (disallowed) {
names = btrfs_printable_features(set, disallowed);
if (names) {
- btrfs_warn(root->fs_info,
- "can't set the %s feature bit%s while mounted",
- names, strchr(names, ',') ? "s" : "");
+ btrfs_warn(fs_info,
+ "can't set the %s feature bit%s while mounted",
+ names, strchr(names, ',') ? "s" : "");
kfree(names);
} else
- btrfs_warn(root->fs_info,
- "can't set %s bits 0x%llx while mounted",
- type, disallowed);
+ btrfs_warn(fs_info,
+ "can't set %s bits 0x%llx while mounted",
+ type, disallowed);
return -EPERM;
}
@@ -5407,14 +5441,14 @@ static int check_feature_bits(struct btrfs_root *root,
if (disallowed) {
names = btrfs_printable_features(set, disallowed);
if (names) {
- btrfs_warn(root->fs_info,
- "can't clear the %s feature bit%s while mounted",
- names, strchr(names, ',') ? "s" : "");
+ btrfs_warn(fs_info,
+ "can't clear the %s feature bit%s while mounted",
+ names, strchr(names, ',') ? "s" : "");
kfree(names);
} else
- btrfs_warn(root->fs_info,
- "can't clear %s bits 0x%llx while mounted",
- type, disallowed);
+ btrfs_warn(fs_info,
+ "can't clear %s bits 0x%llx while mounted",
+ type, disallowed);
return -EPERM;
}
@@ -5429,8 +5463,10 @@ check_feature_bits(root, FEAT_##mask_base, change_mask, flags, \
static int btrfs_ioctl_set_features(struct file *file, void __user *arg)
{
- struct btrfs_root *root = BTRFS_I(file_inode(file))->root;
- struct btrfs_super_block *super_block = root->fs_info->super_copy;
+ struct inode *inode = file_inode(file);
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
+ struct btrfs_root *root = BTRFS_I(inode)->root;
+ struct btrfs_super_block *super_block = fs_info->super_copy;
struct btrfs_ioctl_feature_flags flags[2];
struct btrfs_trans_handle *trans;
u64 newflags;
@@ -5472,7 +5508,7 @@ static int btrfs_ioctl_set_features(struct file *file, void __user *arg)
goto out_drop_write;
}
- spin_lock(&root->fs_info->super_lock);
+ spin_lock(&fs_info->super_lock);
newflags = btrfs_super_compat_flags(super_block);
newflags |= flags[0].compat_flags & flags[1].compat_flags;
newflags &= ~(flags[0].compat_flags & ~flags[1].compat_flags);
@@ -5487,7 +5523,7 @@ static int btrfs_ioctl_set_features(struct file *file, void __user *arg)
newflags |= flags[0].incompat_flags & flags[1].incompat_flags;
newflags &= ~(flags[0].incompat_flags & ~flags[1].incompat_flags);
btrfs_set_super_incompat_flags(super_block, newflags);
- spin_unlock(&root->fs_info->super_lock);
+ spin_unlock(&fs_info->super_lock);
ret = btrfs_commit_transaction(trans, root);
out_drop_write:
@@ -5499,7 +5535,9 @@ static int btrfs_ioctl_set_features(struct file *file, void __user *arg)
long btrfs_ioctl(struct file *file, unsigned int
cmd, unsigned long arg)
{
- struct btrfs_root *root = BTRFS_I(file_inode(file))->root;
+ struct inode *inode = file_inode(file);
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
+ struct btrfs_root *root = BTRFS_I(inode)->root;
void __user *argp = (void __user *)arg;
switch (cmd) {
@@ -5564,16 +5602,16 @@ long btrfs_ioctl(struct file *file, unsigned int
case BTRFS_IOC_SYNC: {
int ret;
- ret = btrfs_start_delalloc_roots(root->fs_info, 0, -1);
+ ret = btrfs_start_delalloc_roots(fs_info, 0, -1);
if (ret)
return ret;
- ret = btrfs_sync_fs(file_inode(file)->i_sb, 1);
+ ret = btrfs_sync_fs(inode->i_sb, 1);
/*
* The transaction thread may want to do more work,
* namely it pokes the cleaner kthread that will start
* processing uncleaned subvols.
*/
- wake_up_process(root->fs_info->transaction_kthread);
+ wake_up_process(fs_info->transaction_kthread);
return ret;
}
case BTRFS_IOC_START_SYNC:
diff --git a/fs/btrfs/ordered-data.c b/fs/btrfs/ordered-data.c
index 763bdfca..041c332 100644
--- a/fs/btrfs/ordered-data.c
+++ b/fs/btrfs/ordered-data.c
@@ -186,6 +186,7 @@ static int __btrfs_add_ordered_extent(struct inode *inode, u64 file_offset,
u64 start, u64 len, u64 disk_len,
int type, int dio, int compress_type)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_root *root = BTRFS_I(inode)->root;
struct btrfs_ordered_inode_tree *tree;
struct rb_node *node;
@@ -234,11 +235,10 @@ static int __btrfs_add_ordered_extent(struct inode *inode, u64 file_offset,
&root->ordered_extents);
root->nr_ordered_extents++;
if (root->nr_ordered_extents == 1) {
- spin_lock(&root->fs_info->ordered_root_lock);
+ spin_lock(&fs_info->ordered_root_lock);
BUG_ON(!list_empty(&root->ordered_root));
- list_add_tail(&root->ordered_root,
- &root->fs_info->ordered_roots);
- spin_unlock(&root->fs_info->ordered_root_lock);
+ list_add_tail(&root->ordered_root, &fs_info->ordered_roots);
+ spin_unlock(&fs_info->ordered_root_lock);
}
spin_unlock(&root->ordered_extent_lock);
@@ -303,6 +303,7 @@ int btrfs_dec_test_first_ordered_pending(struct inode *inode,
struct btrfs_ordered_extent **cached,
u64 *file_offset, u64 io_size, int uptodate)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_ordered_inode_tree *tree;
struct rb_node *node;
struct btrfs_ordered_extent *entry = NULL;
@@ -331,14 +332,14 @@ int btrfs_dec_test_first_ordered_pending(struct inode *inode,
entry->len);
*file_offset = dec_end;
if (dec_start > dec_end) {
- btrfs_crit(BTRFS_I(inode)->root->fs_info,
- "bad ordering dec_start %llu end %llu", dec_start, dec_end);
+ btrfs_crit(fs_info, "bad ordering dec_start %llu end %llu",
+ dec_start, dec_end);
}
to_dec = dec_end - dec_start;
if (to_dec > entry->bytes_left) {
- btrfs_crit(BTRFS_I(inode)->root->fs_info,
- "bad ordered accounting left %llu size %llu",
- entry->bytes_left, to_dec);
+ btrfs_crit(fs_info,
+ "bad ordered accounting left %llu size %llu",
+ entry->bytes_left, to_dec);
}
entry->bytes_left -= to_dec;
if (!uptodate)
@@ -588,6 +589,7 @@ void btrfs_put_ordered_extent(struct btrfs_ordered_extent *entry)
void btrfs_remove_ordered_extent(struct inode *inode,
struct btrfs_ordered_extent *entry)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_ordered_inode_tree *tree;
struct btrfs_root *root = BTRFS_I(inode)->root;
struct rb_node *node;
@@ -618,11 +620,11 @@ void btrfs_remove_ordered_extent(struct inode *inode,
* lock, so be nice and check if trans is set, but ASSERT() so
* if it isn't set a developer will notice.
*/
- spin_lock(&root->fs_info->trans_lock);
- trans = root->fs_info->running_transaction;
+ spin_lock(&fs_info->trans_lock);
+ trans = fs_info->running_transaction;
if (trans)
atomic_inc(&trans->use_count);
- spin_unlock(&root->fs_info->trans_lock);
+ spin_unlock(&fs_info->trans_lock);
ASSERT(trans);
if (trans) {
@@ -639,10 +641,10 @@ void btrfs_remove_ordered_extent(struct inode *inode,
trace_btrfs_ordered_extent_remove(inode, entry);
if (!root->nr_ordered_extents) {
- spin_lock(&root->fs_info->ordered_root_lock);
+ spin_lock(&fs_info->ordered_root_lock);
BUG_ON(list_empty(&root->ordered_root));
list_del_init(&root->ordered_root);
- spin_unlock(&root->fs_info->ordered_root_lock);
+ spin_unlock(&fs_info->ordered_root_lock);
}
spin_unlock(&root->ordered_extent_lock);
wake_up(&entry->wait);
@@ -664,6 +666,7 @@ static void btrfs_run_ordered_extent_work(struct btrfs_work *work)
int btrfs_wait_ordered_extents(struct btrfs_root *root, int nr,
const u64 range_start, const u64 range_len)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
LIST_HEAD(splice);
LIST_HEAD(skipped);
LIST_HEAD(works);
@@ -694,8 +697,7 @@ int btrfs_wait_ordered_extents(struct btrfs_root *root, int nr,
btrfs_flush_delalloc_helper,
btrfs_run_ordered_extent_work, NULL, NULL);
list_add_tail(&ordered->work_list, &works);
- btrfs_queue_work(root->fs_info->flush_workers,
- &ordered->flush_work);
+ btrfs_queue_work(fs_info->flush_workers, &ordered->flush_work);
cond_resched();
spin_lock(&root->ordered_extent_lock);
diff --git a/fs/btrfs/print-tree.c b/fs/btrfs/print-tree.c
index 57c403b..3251a0d 100644
--- a/fs/btrfs/print-tree.c
+++ b/fs/btrfs/print-tree.c
@@ -163,6 +163,7 @@ static void print_uuid_item(struct extent_buffer *l, unsigned long offset,
void btrfs_print_leaf(struct btrfs_root *root, struct extent_buffer *l)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
int i;
u32 type, nr;
struct btrfs_item *item;
@@ -182,7 +183,7 @@ void btrfs_print_leaf(struct btrfs_root *root, struct extent_buffer *l)
nr = btrfs_header_nritems(l);
- btrfs_info(root->fs_info, "leaf %llu total ptrs %d free space %d",
+ btrfs_info(fs_info, "leaf %llu total ptrs %d free space %d",
btrfs_header_bytenr(l), nr, btrfs_leaf_free_space(root, l));
for (i = 0 ; i < nr ; i++) {
item = btrfs_item_nr(i);
@@ -316,6 +317,7 @@ void btrfs_print_leaf(struct btrfs_root *root, struct extent_buffer *l)
void btrfs_print_tree(struct btrfs_root *root, struct extent_buffer *c)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
int i; u32 nr;
struct btrfs_key key;
int level;
@@ -328,10 +330,10 @@ void btrfs_print_tree(struct btrfs_root *root, struct extent_buffer *c)
btrfs_print_leaf(root, c);
return;
}
- btrfs_info(root->fs_info,
+ btrfs_info(fs_info,
"node %llu level %d total ptrs %d free spc %u",
btrfs_header_bytenr(c), level, nr,
- (u32)BTRFS_NODEPTRS_PER_BLOCK(root->fs_info) - nr);
+ (u32)BTRFS_NODEPTRS_PER_BLOCK(fs_info) - nr);
for (i = 0; i < nr; i++) {
btrfs_node_key_to_cpu(c, &key, i);
pr_info("\tkey %d (%llu %u %llu) block %llu\n",
diff --git a/fs/btrfs/qgroup.c b/fs/btrfs/qgroup.c
index 1fd9bef..eb389b1 100644
--- a/fs/btrfs/qgroup.c
+++ b/fs/btrfs/qgroup.c
@@ -1019,7 +1019,7 @@ int btrfs_quota_disable(struct btrfs_trans_handle *trans,
list_del("a_root->dirty_list);
btrfs_tree_lock(quota_root->node);
- clean_tree_block(trans, tree_root->fs_info, quota_root->node);
+ clean_tree_block(trans, fs_info, quota_root->node);
btrfs_tree_unlock(quota_root->node);
btrfs_free_tree_block(trans, quota_root, quota_root->node, 0, 1);
@@ -1192,7 +1192,7 @@ int btrfs_add_qgroup_relation(struct btrfs_trans_handle *trans,
}
spin_lock(&fs_info->qgroup_lock);
- ret = add_relation_rb(quota_root->fs_info, src, dst);
+ ret = add_relation_rb(fs_info, src, dst);
if (ret < 0) {
spin_unlock(&fs_info->qgroup_lock);
goto out;
@@ -1340,7 +1340,7 @@ int btrfs_remove_qgroup(struct btrfs_trans_handle *trans,
}
spin_lock(&fs_info->qgroup_lock);
- del_qgroup_rb(quota_root->fs_info, qgroupid);
+ del_qgroup_rb(fs_info, qgroupid);
spin_unlock(&fs_info->qgroup_lock);
out:
mutex_unlock(&fs_info->qgroup_ioctl_lock);
@@ -1521,6 +1521,7 @@ int btrfs_qgroup_trace_leaf_items(struct btrfs_trans_handle *trans,
struct btrfs_root *root,
struct extent_buffer *eb)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
int nr = btrfs_header_nritems(eb);
int i, extent_type, ret;
struct btrfs_key key;
@@ -1528,7 +1529,7 @@ int btrfs_qgroup_trace_leaf_items(struct btrfs_trans_handle *trans,
u64 bytenr, num_bytes;
/* We can be called directly from walk_up_proc() */
- if (!test_bit(BTRFS_FS_QUOTA_ENABLED, &root->fs_info->flags))
+ if (!test_bit(BTRFS_FS_QUOTA_ENABLED, &fs_info->flags))
return 0;
for (i = 0; i < nr; i++) {
@@ -1550,8 +1551,8 @@ int btrfs_qgroup_trace_leaf_items(struct btrfs_trans_handle *trans,
num_bytes = btrfs_file_extent_disk_num_bytes(eb, fi);
- ret = btrfs_qgroup_trace_extent(trans, root->fs_info,
- bytenr, num_bytes, GFP_NOFS);
+ ret = btrfs_qgroup_trace_extent(trans, fs_info, bytenr,
+ num_bytes, GFP_NOFS);
if (ret)
return ret;
}
@@ -1625,6 +1626,7 @@ int btrfs_qgroup_trace_subtree(struct btrfs_trans_handle *trans,
struct extent_buffer *root_eb,
u64 root_gen, int root_level)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
int ret = 0;
int level;
struct extent_buffer *eb = root_eb;
@@ -1633,7 +1635,7 @@ int btrfs_qgroup_trace_subtree(struct btrfs_trans_handle *trans,
BUG_ON(root_level < 0 || root_level > BTRFS_MAX_LEVEL);
BUG_ON(root_eb == NULL);
- if (!test_bit(BTRFS_FS_QUOTA_ENABLED, &root->fs_info->flags))
+ if (!test_bit(BTRFS_FS_QUOTA_ENABLED, &fs_info->flags))
return 0;
if (!extent_buffer_uptodate(root_eb)) {
@@ -1698,9 +1700,10 @@ int btrfs_qgroup_trace_subtree(struct btrfs_trans_handle *trans,
btrfs_set_lock_blocking_rw(eb, BTRFS_READ_LOCK);
path->locks[level] = BTRFS_READ_LOCK_BLOCKING;
- ret = btrfs_qgroup_trace_extent(trans,
- root->fs_info, child_bytenr,
- root->fs_info->nodesize, GFP_NOFS);
+ ret = btrfs_qgroup_trace_extent(trans, fs_info,
+ child_bytenr,
+ fs_info->nodesize,
+ GFP_NOFS);
if (ret)
goto out;
}
@@ -2170,7 +2173,7 @@ int btrfs_qgroup_inherit(struct btrfs_trans_handle *trans,
}
rcu_read_lock();
- level_size = srcroot->fs_info->nodesize;
+ level_size = fs_info->nodesize;
rcu_read_unlock();
}
@@ -2254,8 +2257,7 @@ int btrfs_qgroup_inherit(struct btrfs_trans_handle *trans,
i_qgroups = (u64 *)(inherit + 1);
for (i = 0; i < inherit->num_qgroups; ++i) {
if (*i_qgroups) {
- ret = add_relation_rb(quota_root->fs_info, objectid,
- *i_qgroups);
+ ret = add_relation_rb(fs_info, objectid, *i_qgroups);
if (ret)
goto unlock;
}
@@ -2897,13 +2899,14 @@ int btrfs_qgroup_release_data(struct inode *inode, u64 start, u64 len)
int btrfs_qgroup_reserve_meta(struct btrfs_root *root, int num_bytes)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
int ret;
- if (!test_bit(BTRFS_FS_QUOTA_ENABLED, &root->fs_info->flags) ||
+ if (!test_bit(BTRFS_FS_QUOTA_ENABLED, &fs_info->flags) ||
!is_fstree(root->objectid) || num_bytes == 0)
return 0;
- BUG_ON(num_bytes != round_down(num_bytes, root->fs_info->nodesize));
+ BUG_ON(num_bytes != round_down(num_bytes, fs_info->nodesize));
ret = qgroup_reserve(root, num_bytes);
if (ret < 0)
return ret;
@@ -2913,9 +2916,10 @@ int btrfs_qgroup_reserve_meta(struct btrfs_root *root, int num_bytes)
void btrfs_qgroup_free_meta_all(struct btrfs_root *root)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
int reserved;
- if (!test_bit(BTRFS_FS_QUOTA_ENABLED, &root->fs_info->flags) ||
+ if (!test_bit(BTRFS_FS_QUOTA_ENABLED, &fs_info->flags) ||
!is_fstree(root->objectid))
return;
@@ -2927,11 +2931,13 @@ void btrfs_qgroup_free_meta_all(struct btrfs_root *root)
void btrfs_qgroup_free_meta(struct btrfs_root *root, int num_bytes)
{
- if (!test_bit(BTRFS_FS_QUOTA_ENABLED, &root->fs_info->flags) ||
+ struct btrfs_fs_info *fs_info = root->fs_info;
+
+ if (!test_bit(BTRFS_FS_QUOTA_ENABLED, &fs_info->flags) ||
!is_fstree(root->objectid))
return;
- BUG_ON(num_bytes != round_down(num_bytes, root->fs_info->nodesize));
+ BUG_ON(num_bytes != round_down(num_bytes, fs_info->nodesize));
WARN_ON(atomic_read(&root->qgroup_meta_rsv) < num_bytes);
atomic_sub(num_bytes, &root->qgroup_meta_rsv);
qgroup_free(root, num_bytes);
diff --git a/fs/btrfs/raid56.c b/fs/btrfs/raid56.c
index 6e9e21d..9a67346 100644
--- a/fs/btrfs/raid56.c
+++ b/fs/btrfs/raid56.c
@@ -1478,11 +1478,8 @@ static void raid_rmw_end_io(struct bio *bio)
static void async_rmw_stripe(struct btrfs_raid_bio *rbio)
{
- btrfs_init_work(&rbio->work, btrfs_rmw_helper,
- rmw_work, NULL, NULL);
-
- btrfs_queue_work(rbio->fs_info->rmw_workers,
- &rbio->work);
+ btrfs_init_work(&rbio->work, btrfs_rmw_helper, rmw_work, NULL, NULL);
+ btrfs_queue_work(rbio->fs_info->rmw_workers, &rbio->work);
}
static void async_read_rebuild(struct btrfs_raid_bio *rbio)
@@ -1490,8 +1487,7 @@ static void async_read_rebuild(struct btrfs_raid_bio *rbio)
btrfs_init_work(&rbio->work, btrfs_rmw_helper,
read_rebuild_work, NULL, NULL);
- btrfs_queue_work(rbio->fs_info->rmw_workers,
- &rbio->work);
+ btrfs_queue_work(rbio->fs_info->rmw_workers, &rbio->work);
}
/*
@@ -1573,8 +1569,7 @@ static int raid56_rmw_stripe(struct btrfs_raid_bio *rbio)
bio->bi_end_io = raid_rmw_end_io;
bio_set_op_attrs(bio, REQ_OP_READ, 0);
- btrfs_bio_wq_end_io(rbio->fs_info, bio,
- BTRFS_WQ_ENDIO_RAID56);
+ btrfs_bio_wq_end_io(rbio->fs_info, bio, BTRFS_WQ_ENDIO_RAID56);
submit_bio(bio);
}
@@ -1742,6 +1737,7 @@ static void btrfs_raid_unplug(struct blk_plug_cb *cb, bool from_schedule)
int raid56_parity_write(struct btrfs_root *root, struct bio *bio,
struct btrfs_bio *bbio, u64 stripe_len)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_raid_bio *rbio;
struct btrfs_plug_cb *plug = NULL;
struct blk_plug_cb *cb;
@@ -1756,7 +1752,7 @@ int raid56_parity_write(struct btrfs_root *root, struct bio *bio,
rbio->bio_list_bytes = bio->bi_iter.bi_size;
rbio->operation = BTRFS_RBIO_WRITE;
- btrfs_bio_counter_inc_noblocked(root->fs_info);
+ btrfs_bio_counter_inc_noblocked(fs_info);
rbio->generic_bio_cnt = 1;
/*
@@ -1766,16 +1762,15 @@ int raid56_parity_write(struct btrfs_root *root, struct bio *bio,
if (rbio_is_full(rbio)) {
ret = full_stripe_write(rbio);
if (ret)
- btrfs_bio_counter_dec(root->fs_info);
+ btrfs_bio_counter_dec(fs_info);
return ret;
}
- cb = blk_check_plugged(btrfs_raid_unplug, root->fs_info,
- sizeof(*plug));
+ cb = blk_check_plugged(btrfs_raid_unplug, fs_info, sizeof(*plug));
if (cb) {
plug = container_of(cb, struct btrfs_plug_cb, cb);
if (!plug->info) {
- plug->info = root->fs_info;
+ plug->info = fs_info;
INIT_LIST_HEAD(&plug->rbio_list);
}
list_add_tail(&rbio->plug_list, &plug->rbio_list);
@@ -1783,7 +1778,7 @@ int raid56_parity_write(struct btrfs_root *root, struct bio *bio,
} else {
ret = __raid56_parity_write(rbio);
if (ret)
- btrfs_bio_counter_dec(root->fs_info);
+ btrfs_bio_counter_dec(fs_info);
}
return ret;
}
@@ -2098,8 +2093,7 @@ static int __raid56_parity_recover(struct btrfs_raid_bio *rbio)
bio->bi_end_io = raid_recover_end_io;
bio_set_op_attrs(bio, REQ_OP_READ, 0);
- btrfs_bio_wq_end_io(rbio->fs_info, bio,
- BTRFS_WQ_ENDIO_RAID56);
+ btrfs_bio_wq_end_io(rbio->fs_info, bio, BTRFS_WQ_ENDIO_RAID56);
submit_bio(bio);
}
@@ -2123,6 +2117,7 @@ int raid56_parity_recover(struct btrfs_root *root, struct bio *bio,
struct btrfs_bio *bbio, u64 stripe_len,
int mirror_num, int generic_io)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_raid_bio *rbio;
int ret;
@@ -2139,7 +2134,7 @@ int raid56_parity_recover(struct btrfs_root *root, struct bio *bio,
rbio->faila = find_logical_bio_stripe(rbio, bio);
if (rbio->faila == -1) {
- btrfs_warn(root->fs_info,
+ btrfs_warn(fs_info,
"%s could not find the bad stripe in raid56 so that we cannot recover any more (bio has logical %llu len %llu, bbio has map_type %llu)",
__func__, (u64)bio->bi_iter.bi_sector << 9,
(u64)bio->bi_iter.bi_size, bbio->map_type);
@@ -2150,7 +2145,7 @@ int raid56_parity_recover(struct btrfs_root *root, struct bio *bio,
}
if (generic_io) {
- btrfs_bio_counter_inc_noblocked(root->fs_info);
+ btrfs_bio_counter_inc_noblocked(fs_info);
rbio->generic_bio_cnt = 1;
} else {
btrfs_get_bbio(bbio);
@@ -2213,6 +2208,7 @@ raid56_parity_alloc_scrub_rbio(struct btrfs_root *root, struct bio *bio,
struct btrfs_device *scrub_dev,
unsigned long *dbitmap, int stripe_nsectors)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_raid_bio *rbio;
int i;
@@ -2235,7 +2231,7 @@ raid56_parity_alloc_scrub_rbio(struct btrfs_root *root, struct bio *bio,
}
/* Now we just support the sectorsize equals to page size */
- ASSERT(root->fs_info->sectorsize == PAGE_SIZE);
+ ASSERT(fs_info->sectorsize == PAGE_SIZE);
ASSERT(rbio->stripe_npages == stripe_nsectors);
bitmap_copy(rbio->dbitmap, dbitmap, stripe_nsectors);
@@ -2617,8 +2613,7 @@ static void raid56_parity_scrub_stripe(struct btrfs_raid_bio *rbio)
bio->bi_end_io = raid56_parity_scrub_end_io;
bio_set_op_attrs(bio, REQ_OP_READ, 0);
- btrfs_bio_wq_end_io(rbio->fs_info, bio,
- BTRFS_WQ_ENDIO_RAID56);
+ btrfs_bio_wq_end_io(rbio->fs_info, bio, BTRFS_WQ_ENDIO_RAID56);
submit_bio(bio);
}
@@ -2646,8 +2641,7 @@ static void async_scrub_parity(struct btrfs_raid_bio *rbio)
btrfs_init_work(&rbio->work, btrfs_rmw_helper,
scrub_parity_work, NULL, NULL);
- btrfs_queue_work(rbio->fs_info->rmw_workers,
- &rbio->work);
+ btrfs_queue_work(rbio->fs_info->rmw_workers, &rbio->work);
}
void raid56_parity_submit_scrub_rbio(struct btrfs_raid_bio *rbio)
diff --git a/fs/btrfs/reada.c b/fs/btrfs/reada.c
index c51292a..8d36fb4 100644
--- a/fs/btrfs/reada.c
+++ b/fs/btrfs/reada.c
@@ -335,7 +335,7 @@ static struct reada_extent *reada_find_extent(struct btrfs_root *root,
if (!re)
return NULL;
- blocksize = root->fs_info->nodesize;
+ blocksize = fs_info->nodesize;
re->logical = logical;
re->top = *top;
INIT_LIST_HEAD(&re->extctl);
@@ -352,7 +352,7 @@ static struct reada_extent *reada_find_extent(struct btrfs_root *root,
goto error;
if (bbio->num_stripes > BTRFS_MAX_MIRRORS) {
- btrfs_err(root->fs_info,
+ btrfs_err(fs_info,
"readahead: more than %d copies not supported",
BTRFS_MAX_MIRRORS);
goto error;
@@ -950,11 +950,10 @@ int btrfs_reada_wait(void *handle)
reada_start_machine(fs_info);
wait_event_timeout(rc->wait, atomic_read(&rc->elems) == 0,
5 * HZ);
- dump_devs(rc->root->fs_info,
- atomic_read(&rc->elems) < 10 ? 1 : 0);
+ dump_devs(fs_info, atomic_read(&rc->elems) < 10 ? 1 : 0);
}
- dump_devs(rc->root->fs_info, atomic_read(&rc->elems) < 10 ? 1 : 0);
+ dump_devs(fs_info, atomic_read(&rc->elems) < 10 ? 1 : 0);
kref_put(&rc->refcnt, reada_control_release);
diff --git a/fs/btrfs/relocation.c b/fs/btrfs/relocation.c
index a515591..bc6ccd3a 100644
--- a/fs/btrfs/relocation.c
+++ b/fs/btrfs/relocation.c
@@ -1288,9 +1288,10 @@ static int clone_backref_node(struct btrfs_trans_handle *trans,
*/
static int __must_check __add_reloc_root(struct btrfs_root *root)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct rb_node *rb_node;
struct mapping_node *node;
- struct reloc_control *rc = root->fs_info->reloc_ctl;
+ struct reloc_control *rc = fs_info->reloc_ctl;
node = kmalloc(sizeof(*node), GFP_NOFS);
if (!node)
@@ -1304,7 +1305,7 @@ static int __must_check __add_reloc_root(struct btrfs_root *root)
node->bytenr, &node->rb_node);
spin_unlock(&rc->reloc_root_tree.lock);
if (rb_node) {
- btrfs_panic(root->fs_info, -EEXIST,
+ btrfs_panic(fs_info, -EEXIST,
"Duplicate root found for start=%llu while inserting into relocation tree",
node->bytenr);
kfree(node);
@@ -1321,9 +1322,10 @@ static int __must_check __add_reloc_root(struct btrfs_root *root)
*/
static void __del_reloc_root(struct btrfs_root *root)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct rb_node *rb_node;
struct mapping_node *node = NULL;
- struct reloc_control *rc = root->fs_info->reloc_ctl;
+ struct reloc_control *rc = fs_info->reloc_ctl;
spin_lock(&rc->reloc_root_tree.lock);
rb_node = tree_search(&rc->reloc_root_tree.rb_root,
@@ -1338,9 +1340,9 @@ static void __del_reloc_root(struct btrfs_root *root)
return;
BUG_ON((struct btrfs_root *)node->data != root);
- spin_lock(&root->fs_info->trans_lock);
+ spin_lock(&fs_info->trans_lock);
list_del_init(&root->root_list);
- spin_unlock(&root->fs_info->trans_lock);
+ spin_unlock(&fs_info->trans_lock);
kfree(node);
}
@@ -1350,9 +1352,10 @@ static void __del_reloc_root(struct btrfs_root *root)
*/
static int __update_reloc_root(struct btrfs_root *root, u64 new_bytenr)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct rb_node *rb_node;
struct mapping_node *node = NULL;
- struct reloc_control *rc = root->fs_info->reloc_ctl;
+ struct reloc_control *rc = fs_info->reloc_ctl;
spin_lock(&rc->reloc_root_tree.lock);
rb_node = tree_search(&rc->reloc_root_tree.rb_root,
@@ -1380,6 +1383,7 @@ static int __update_reloc_root(struct btrfs_root *root, u64 new_bytenr)
static struct btrfs_root *create_reloc_root(struct btrfs_trans_handle *trans,
struct btrfs_root *root, u64 objectid)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_root *reloc_root;
struct extent_buffer *eb;
struct btrfs_root_item *root_item;
@@ -1437,12 +1441,12 @@ static struct btrfs_root *create_reloc_root(struct btrfs_trans_handle *trans,
btrfs_tree_unlock(eb);
free_extent_buffer(eb);
- ret = btrfs_insert_root(trans, root->fs_info->tree_root,
+ ret = btrfs_insert_root(trans, fs_info->tree_root,
&root_key, root_item);
BUG_ON(ret);
kfree(root_item);
- reloc_root = btrfs_read_fs_root(root->fs_info->tree_root, &root_key);
+ reloc_root = btrfs_read_fs_root(fs_info->tree_root, &root_key);
BUG_ON(IS_ERR(reloc_root));
reloc_root->last_trans = trans->transid;
return reloc_root;
@@ -1455,8 +1459,9 @@ static struct btrfs_root *create_reloc_root(struct btrfs_trans_handle *trans,
int btrfs_init_reloc_root(struct btrfs_trans_handle *trans,
struct btrfs_root *root)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_root *reloc_root;
- struct reloc_control *rc = root->fs_info->reloc_ctl;
+ struct reloc_control *rc = fs_info->reloc_ctl;
struct btrfs_block_rsv *rsv;
int clear_rsv = 0;
int ret;
@@ -1492,6 +1497,7 @@ int btrfs_init_reloc_root(struct btrfs_trans_handle *trans,
int btrfs_update_reloc_root(struct btrfs_trans_handle *trans,
struct btrfs_root *root)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_root *reloc_root;
struct btrfs_root_item *root_item;
int ret;
@@ -1502,7 +1508,7 @@ int btrfs_update_reloc_root(struct btrfs_trans_handle *trans,
reloc_root = root->reloc_root;
root_item = &reloc_root->root_item;
- if (root->fs_info->reloc_ctl->merge_reloc_tree &&
+ if (fs_info->reloc_ctl->merge_reloc_tree &&
btrfs_root_refs(root_item) == 0) {
root->reloc_root = NULL;
__del_reloc_root(reloc_root);
@@ -1514,7 +1520,7 @@ int btrfs_update_reloc_root(struct btrfs_trans_handle *trans,
reloc_root->commit_root = btrfs_root_node(reloc_root);
}
- ret = btrfs_update_root(trans, root->fs_info->tree_root,
+ ret = btrfs_update_root(trans, fs_info->tree_root,
&reloc_root->root_key, root_item);
BUG_ON(ret);
@@ -1642,6 +1648,7 @@ int replace_file_extents(struct btrfs_trans_handle *trans,
struct btrfs_root *root,
struct extent_buffer *leaf)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_key key;
struct btrfs_file_extent_item *fi;
struct inode *inode = NULL;
@@ -1698,8 +1705,8 @@ int replace_file_extents(struct btrfs_trans_handle *trans,
end = key.offset +
btrfs_file_extent_num_bytes(leaf, fi);
WARN_ON(!IS_ALIGNED(key.offset,
- root->fs_info->sectorsize));
- WARN_ON(!IS_ALIGNED(end, root->fs_info->sectorsize));
+ fs_info->sectorsize));
+ WARN_ON(!IS_ALIGNED(end, fs_info->sectorsize));
end--;
ret = try_lock_extent(&BTRFS_I(inode)->io_tree,
key.offset, end);
@@ -1777,6 +1784,7 @@ int replace_path(struct btrfs_trans_handle *trans,
struct btrfs_path *path, struct btrfs_key *next_key,
int lowest_level, int max_level)
{
+ struct btrfs_fs_info *fs_info = dest->fs_info;
struct extent_buffer *eb;
struct extent_buffer *parent;
struct btrfs_key key;
@@ -1834,7 +1842,7 @@ int replace_path(struct btrfs_trans_handle *trans,
btrfs_node_key_to_cpu(parent, next_key, slot + 1);
old_bytenr = btrfs_node_blockptr(parent, slot);
- blocksize = dest->fs_info->nodesize;
+ blocksize = fs_info->nodesize;
old_ptr_gen = btrfs_node_ptr_generation(parent, slot);
if (level <= max_level) {
@@ -2061,6 +2069,7 @@ static int invalidate_extent_cache(struct btrfs_root *root,
struct btrfs_key *min_key,
struct btrfs_key *max_key)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct inode *inode = NULL;
u64 objectid;
u64 start, end;
@@ -2095,7 +2104,7 @@ static int invalidate_extent_cache(struct btrfs_root *root,
start = 0;
else {
start = min_key->offset;
- WARN_ON(!IS_ALIGNED(start, root->fs_info->sectorsize));
+ WARN_ON(!IS_ALIGNED(start, fs_info->sectorsize));
}
} else {
start = 0;
@@ -2110,7 +2119,7 @@ static int invalidate_extent_cache(struct btrfs_root *root,
if (max_key->offset == 0)
continue;
end = max_key->offset;
- WARN_ON(!IS_ALIGNED(end, root->fs_info->sectorsize));
+ WARN_ON(!IS_ALIGNED(end, fs_info->sectorsize));
end--;
}
} else {
@@ -2150,6 +2159,7 @@ static int find_next_key(struct btrfs_path *path, int level,
static noinline_for_stack int merge_reloc_root(struct reloc_control *rc,
struct btrfs_root *root)
{
+ struct btrfs_fs_info *fs_info = rc->extent_root->fs_info;
LIST_HEAD(inode_list);
struct btrfs_key key;
struct btrfs_key next_key;
@@ -2198,7 +2208,7 @@ static noinline_for_stack int merge_reloc_root(struct reloc_control *rc,
btrfs_unlock_up_safe(path, 0);
}
- min_reserved = root->fs_info->nodesize * (BTRFS_MAX_LEVEL - 1) * 2;
+ min_reserved = fs_info->nodesize * (BTRFS_MAX_LEVEL - 1) * 2;
memset(&next_key, 0, sizeof(next_key));
while (1) {
@@ -2304,16 +2314,17 @@ static noinline_for_stack
int prepare_to_merge(struct reloc_control *rc, int err)
{
struct btrfs_root *root = rc->extent_root;
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_root *reloc_root;
struct btrfs_trans_handle *trans;
LIST_HEAD(reloc_roots);
u64 num_bytes = 0;
int ret;
- mutex_lock(&root->fs_info->reloc_mutex);
- rc->merging_rsv_size += root->fs_info->nodesize * (BTRFS_MAX_LEVEL - 1) * 2;
+ mutex_lock(&fs_info->reloc_mutex);
+ rc->merging_rsv_size += fs_info->nodesize * (BTRFS_MAX_LEVEL - 1) * 2;
rc->merging_rsv_size += rc->nodes_relocated * 2;
- mutex_unlock(&root->fs_info->reloc_mutex);
+ mutex_unlock(&fs_info->reloc_mutex);
again:
if (!err) {
@@ -2348,8 +2359,7 @@ int prepare_to_merge(struct reloc_control *rc, int err)
struct btrfs_root, root_list);
list_del_init(&reloc_root->root_list);
- root = read_fs_root(reloc_root->fs_info,
- reloc_root->root_key.offset);
+ root = read_fs_root(fs_info, reloc_root->root_key.offset);
BUG_ON(IS_ERR(root));
BUG_ON(root->reloc_root != reloc_root);
@@ -2392,6 +2402,7 @@ void free_reloc_roots(struct list_head *list)
static noinline_for_stack
void merge_reloc_roots(struct reloc_control *rc)
{
+ struct btrfs_fs_info *fs_info = rc->extent_root->fs_info;
struct btrfs_root *root;
struct btrfs_root *reloc_root;
u64 last_snap;
@@ -2409,9 +2420,9 @@ void merge_reloc_roots(struct reloc_control *rc)
* adding their roots to the list while we are
* doing this splice
*/
- mutex_lock(&root->fs_info->reloc_mutex);
+ mutex_lock(&fs_info->reloc_mutex);
list_splice_init(&rc->reloc_roots, &reloc_roots);
- mutex_unlock(&root->fs_info->reloc_mutex);
+ mutex_unlock(&fs_info->reloc_mutex);
while (!list_empty(&reloc_roots)) {
found = 1;
@@ -2419,7 +2430,7 @@ void merge_reloc_roots(struct reloc_control *rc)
struct btrfs_root, root_list);
if (btrfs_root_refs(&reloc_root->root_item) > 0) {
- root = read_fs_root(reloc_root->fs_info,
+ root = read_fs_root(fs_info,
reloc_root->root_key.offset);
BUG_ON(IS_ERR(root));
BUG_ON(root->reloc_root != reloc_root);
@@ -2458,14 +2469,14 @@ void merge_reloc_roots(struct reloc_control *rc)
}
out:
if (ret) {
- btrfs_handle_fs_error(root->fs_info, ret, NULL);
+ btrfs_handle_fs_error(fs_info, ret, NULL);
if (!list_empty(&reloc_roots))
free_reloc_roots(&reloc_roots);
/* new reloc root may be added */
- mutex_lock(&root->fs_info->reloc_mutex);
+ mutex_lock(&fs_info->reloc_mutex);
list_splice_init(&rc->reloc_roots, &reloc_roots);
- mutex_unlock(&root->fs_info->reloc_mutex);
+ mutex_unlock(&fs_info->reloc_mutex);
if (!list_empty(&reloc_roots))
free_reloc_roots(&reloc_roots);
}
@@ -2487,12 +2498,13 @@ static void free_block_list(struct rb_root *blocks)
static int record_reloc_root_in_trans(struct btrfs_trans_handle *trans,
struct btrfs_root *reloc_root)
{
+ struct btrfs_fs_info *fs_info = reloc_root->fs_info;
struct btrfs_root *root;
if (reloc_root->last_trans == trans->transid)
return 0;
- root = read_fs_root(reloc_root->fs_info, reloc_root->root_key.offset);
+ root = read_fs_root(fs_info, reloc_root->root_key.offset);
BUG_ON(IS_ERR(root));
BUG_ON(root->reloc_root != reloc_root);
@@ -2602,6 +2614,7 @@ static noinline_for_stack
u64 calcu_metadata_size(struct reloc_control *rc,
struct backref_node *node, int reserve)
{
+ struct btrfs_fs_info *fs_info = rc->extent_root->fs_info;
struct backref_node *next = node;
struct backref_edge *edge;
struct backref_edge *edges[BTRFS_MAX_LEVEL - 1];
@@ -2616,7 +2629,7 @@ u64 calcu_metadata_size(struct reloc_control *rc,
if (next->processed && (reserve || next != node))
break;
- num_bytes += rc->extent_root->fs_info->nodesize;
+ num_bytes += fs_info->nodesize;
if (list_empty(&next->upper))
break;
@@ -3131,7 +3144,7 @@ static noinline_for_stack
int setup_extent_mapping(struct inode *inode, u64 start, u64 end,
u64 block_start)
{
- struct btrfs_root *root = BTRFS_I(inode)->root;
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct extent_map_tree *em_tree = &BTRFS_I(inode)->extent_tree;
struct extent_map *em;
int ret = 0;
@@ -3144,7 +3157,7 @@ int setup_extent_mapping(struct inode *inode, u64 start, u64 end,
em->len = end + 1 - start;
em->block_len = em->len;
em->block_start = block_start;
- em->bdev = root->fs_info->fs_devices->latest_bdev;
+ em->bdev = fs_info->fs_devices->latest_bdev;
set_bit(EXTENT_FLAG_PINNED, &em->flags);
lock_extent(&BTRFS_I(inode)->io_tree, start, end);
@@ -3419,11 +3432,11 @@ static int __add_tree_block(struct reloc_control *rc,
u64 bytenr, u32 blocksize,
struct rb_root *blocks)
{
+ struct btrfs_fs_info *fs_info = rc->extent_root->fs_info;
struct btrfs_path *path;
struct btrfs_key key;
int ret;
- bool skinny = btrfs_fs_incompat(rc->extent_root->fs_info,
- SKINNY_METADATA);
+ bool skinny = btrfs_fs_incompat(fs_info, SKINNY_METADATA);
if (tree_block_processed(bytenr, rc))
return 0;
@@ -3556,6 +3569,7 @@ static int find_data_references(struct reloc_control *rc,
struct btrfs_extent_data_ref *ref,
struct rb_root *blocks)
{
+ struct btrfs_fs_info *fs_info = rc->extent_root->fs_info;
struct btrfs_path *path;
struct tree_block *block;
struct btrfs_root *root;
@@ -3582,8 +3596,7 @@ static int find_data_references(struct reloc_control *rc,
* it and redo the search.
*/
if (ref_root == BTRFS_ROOT_TREE_OBJECTID) {
- ret = delete_block_group_cache(rc->extent_root->fs_info,
- rc->block_group,
+ ret = delete_block_group_cache(fs_info, rc->block_group,
NULL, ref_objectid);
if (ret != -ENOENT)
return ret;
@@ -3595,7 +3608,7 @@ static int find_data_references(struct reloc_control *rc,
return -ENOMEM;
path->reada = READA_FORWARD;
- root = read_fs_root(rc->extent_root->fs_info, ref_root);
+ root = read_fs_root(fs_info, ref_root);
if (IS_ERR(root)) {
err = PTR_ERR(root);
goto out;
@@ -3821,6 +3834,7 @@ static noinline_for_stack
int find_next_extent(struct reloc_control *rc, struct btrfs_path *path,
struct btrfs_key *extent_key)
{
+ struct btrfs_fs_info *fs_info = rc->extent_root->fs_info;
struct btrfs_key key;
struct extent_buffer *leaf;
u64 start, end, last;
@@ -3872,7 +3886,7 @@ int find_next_extent(struct reloc_control *rc, struct btrfs_path *path,
}
if (key.type == BTRFS_METADATA_ITEM_KEY &&
- key.objectid + rc->extent_root->fs_info->nodesize <=
+ key.objectid + fs_info->nodesize <=
rc->search_start) {
path->slots[0]++;
goto next;
@@ -3890,7 +3904,7 @@ int find_next_extent(struct reloc_control *rc, struct btrfs_path *path,
rc->search_start = key.objectid + key.offset;
else
rc->search_start = key.objectid +
- rc->extent_root->fs_info->nodesize;
+ fs_info->nodesize;
memcpy(extent_key, &key, sizeof(key));
return 0;
}
@@ -4233,7 +4247,7 @@ struct inode *create_reloc_inode(struct btrfs_fs_info *fs_info,
key.objectid = objectid;
key.type = BTRFS_INODE_ITEM_KEY;
key.offset = 0;
- inode = btrfs_iget(root->fs_info->sb, &key, root, NULL);
+ inode = btrfs_iget(fs_info->sb, &key, root, NULL);
BUG_ON(IS_ERR(inode) || is_bad_inode(inode));
BTRFS_I(inode)->index_cnt = group->key.objectid;
@@ -4360,7 +4374,7 @@ int btrfs_relocate_block_group(struct btrfs_fs_info *fs_info, u64 group_start)
goto out;
}
- describe_relocation(extent_root->fs_info, rc->block_group);
+ describe_relocation(fs_info, rc->block_group);
btrfs_wait_block_group_reservations(rc->block_group);
btrfs_wait_nocow_writers(rc->block_group);
@@ -4380,8 +4394,7 @@ int btrfs_relocate_block_group(struct btrfs_fs_info *fs_info, u64 group_start)
if (rc->extents_found == 0)
break;
- btrfs_info(extent_root->fs_info, "found %llu extents",
- rc->extents_found);
+ btrfs_info(fs_info, "found %llu extents", rc->extents_found);
if (rc->stage == MOVE_DATA_EXTENTS && rc->found_file_extent) {
ret = btrfs_wait_ordered_range(rc->data_inode, 0,
@@ -4410,10 +4423,11 @@ int btrfs_relocate_block_group(struct btrfs_fs_info *fs_info, u64 group_start)
static noinline_for_stack int mark_garbage_root(struct btrfs_root *root)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_trans_handle *trans;
int ret, err;
- trans = btrfs_start_transaction(root->fs_info->tree_root, 0);
+ trans = btrfs_start_transaction(fs_info->tree_root, 0);
if (IS_ERR(trans))
return PTR_ERR(trans);
@@ -4421,10 +4435,10 @@ static noinline_for_stack int mark_garbage_root(struct btrfs_root *root)
sizeof(root->root_item.drop_progress));
root->root_item.drop_level = 0;
btrfs_set_root_refs(&root->root_item, 0);
- ret = btrfs_update_root(trans, root->fs_info->tree_root,
+ ret = btrfs_update_root(trans, fs_info->tree_root,
&root->root_key, &root->root_item);
- err = btrfs_end_transaction(trans, root->fs_info->tree_root);
+ err = btrfs_end_transaction(trans, fs_info->tree_root);
if (err)
return err;
return ret;
@@ -4438,6 +4452,7 @@ static noinline_for_stack int mark_garbage_root(struct btrfs_root *root)
*/
int btrfs_recover_relocation(struct btrfs_root *root)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
LIST_HEAD(reloc_roots);
struct btrfs_key key;
struct btrfs_root *fs_root;
@@ -4459,7 +4474,7 @@ int btrfs_recover_relocation(struct btrfs_root *root)
key.offset = (u64)-1;
while (1) {
- ret = btrfs_search_slot(NULL, root->fs_info->tree_root, &key,
+ ret = btrfs_search_slot(NULL, fs_info->tree_root, &key,
path, 0, 0);
if (ret < 0) {
err = ret;
@@ -4487,7 +4502,7 @@ int btrfs_recover_relocation(struct btrfs_root *root)
list_add(&reloc_root->root_list, &reloc_roots);
if (btrfs_root_refs(&reloc_root->root_item) > 0) {
- fs_root = read_fs_root(root->fs_info,
+ fs_root = read_fs_root(fs_info,
reloc_root->root_key.offset);
if (IS_ERR(fs_root)) {
ret = PTR_ERR(fs_root);
@@ -4513,13 +4528,13 @@ int btrfs_recover_relocation(struct btrfs_root *root)
if (list_empty(&reloc_roots))
goto out;
- rc = alloc_reloc_control(root->fs_info);
+ rc = alloc_reloc_control(fs_info);
if (!rc) {
err = -ENOMEM;
goto out;
}
- rc->extent_root = root->fs_info->extent_root;
+ rc->extent_root = fs_info->extent_root;
set_reloc_control(rc);
@@ -4543,8 +4558,7 @@ int btrfs_recover_relocation(struct btrfs_root *root)
continue;
}
- fs_root = read_fs_root(root->fs_info,
- reloc_root->root_key.offset);
+ fs_root = read_fs_root(fs_info, reloc_root->root_key.offset);
if (IS_ERR(fs_root)) {
err = PTR_ERR(fs_root);
goto out_free;
@@ -4579,8 +4593,7 @@ int btrfs_recover_relocation(struct btrfs_root *root)
if (err == 0) {
/* cleanup orphan inode in data relocation tree */
- fs_root = read_fs_root(root->fs_info,
- BTRFS_DATA_RELOC_TREE_OBJECTID);
+ fs_root = read_fs_root(fs_info, BTRFS_DATA_RELOC_TREE_OBJECTID);
if (IS_ERR(fs_root))
err = PTR_ERR(fs_root);
else
@@ -4597,9 +4610,9 @@ int btrfs_recover_relocation(struct btrfs_root *root)
*/
int btrfs_reloc_clone_csums(struct inode *inode, u64 file_pos, u64 len)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_ordered_sum *sums;
struct btrfs_ordered_extent *ordered;
- struct btrfs_root *root = BTRFS_I(inode)->root;
int ret;
u64 disk_bytenr;
u64 new_bytenr;
@@ -4609,7 +4622,7 @@ int btrfs_reloc_clone_csums(struct inode *inode, u64 file_pos, u64 len)
BUG_ON(ordered->file_offset != file_pos || ordered->len != len);
disk_bytenr = file_pos + BTRFS_I(inode)->index_cnt;
- ret = btrfs_lookup_csums_range(root->fs_info->csum_root, disk_bytenr,
+ ret = btrfs_lookup_csums_range(fs_info->csum_root, disk_bytenr,
disk_bytenr + len - 1, &list, 0);
if (ret)
goto out;
@@ -4644,13 +4657,14 @@ int btrfs_reloc_cow_block(struct btrfs_trans_handle *trans,
struct btrfs_root *root, struct extent_buffer *buf,
struct extent_buffer *cow)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct reloc_control *rc;
struct backref_node *node;
int first_cow = 0;
int level;
int ret = 0;
- rc = root->fs_info->reloc_ctl;
+ rc = fs_info->reloc_ctl;
if (!rc)
return 0;
diff --git a/fs/btrfs/root-tree.c b/fs/btrfs/root-tree.c
index 60e711a..f7f6cb7d 100644
--- a/fs/btrfs/root-tree.c
+++ b/fs/btrfs/root-tree.c
@@ -132,6 +132,7 @@ int btrfs_update_root(struct btrfs_trans_handle *trans, struct btrfs_root
*root, struct btrfs_key *key, struct btrfs_root_item
*item)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_path *path;
struct extent_buffer *l;
int ret;
@@ -151,8 +152,7 @@ int btrfs_update_root(struct btrfs_trans_handle *trans, struct btrfs_root
if (ret != 0) {
btrfs_print_leaf(root, path->nodes[0]);
- btrfs_crit(root->fs_info,
- "unable to update root key %llu %u %llu",
+ btrfs_crit(fs_info, "unable to update root key %llu %u %llu",
key->objectid, key->type, key->offset);
BUG_ON(1);
}
@@ -228,7 +228,7 @@ int btrfs_find_orphan_roots(struct btrfs_fs_info *fs_info)
int ret;
bool can_recover = true;
- if (tree_root->fs_info->sb->s_flags & MS_RDONLY)
+ if (fs_info->sb->s_flags & MS_RDONLY)
can_recover = false;
path = btrfs_alloc_path();
@@ -276,8 +276,7 @@ int btrfs_find_orphan_roots(struct btrfs_fs_info *fs_info)
* in turn reads and inserts fs roots while doing backref
* walking.
*/
- root = btrfs_lookup_fs_root(tree_root->fs_info,
- root_key.objectid);
+ root = btrfs_lookup_fs_root(fs_info, root_key.objectid);
if (root) {
WARN_ON(!test_bit(BTRFS_ROOT_ORPHAN_ITEM_INSERTED,
&root->state));
@@ -298,7 +297,7 @@ int btrfs_find_orphan_roots(struct btrfs_fs_info *fs_info)
trans = btrfs_join_transaction(tree_root);
if (IS_ERR(trans)) {
err = PTR_ERR(trans);
- btrfs_handle_fs_error(tree_root->fs_info, err,
+ btrfs_handle_fs_error(fs_info, err,
"Failed to start trans to delete orphan item");
break;
}
@@ -306,7 +305,7 @@ int btrfs_find_orphan_roots(struct btrfs_fs_info *fs_info)
root_key.objectid);
btrfs_end_transaction(trans, tree_root);
if (err) {
- btrfs_handle_fs_error(tree_root->fs_info, err,
+ btrfs_handle_fs_error(fs_info, err,
"Failed to delete root orphan item");
break;
}
@@ -321,7 +320,7 @@ int btrfs_find_orphan_roots(struct btrfs_fs_info *fs_info)
set_bit(BTRFS_ROOT_ORPHAN_ITEM_INSERTED, &root->state);
- err = btrfs_insert_fs_root(root->fs_info, root);
+ err = btrfs_insert_fs_root(fs_info, root);
if (err) {
BUG_ON(err == -EEXIST);
btrfs_free_fs_root(root);
diff --git a/fs/btrfs/scrub.c b/fs/btrfs/scrub.c
index 6834ff8..8aef00b 100644
--- a/fs/btrfs/scrub.c
+++ b/fs/btrfs/scrub.c
@@ -489,8 +489,8 @@ struct scrub_ctx *scrub_setup_ctx(struct btrfs_device *dev, int is_dev_replace)
sctx->bios[i]->next_free = -1;
}
sctx->first_free = 0;
- sctx->nodesize = dev->fs_info->nodesize;
- sctx->sectorsize = dev->fs_info->sectorsize;
+ sctx->nodesize = fs_info->nodesize;
+ sctx->sectorsize = fs_info->sectorsize;
atomic_set(&sctx->bios_in_flight, 0);
atomic_set(&sctx->workers_pending, 0);
atomic_set(&sctx->cancel_req, 0);
@@ -789,6 +789,7 @@ static int scrub_fixup_readpage(u64 inum, u64 offset, u64 root, void *fixup_ctx)
static void scrub_fixup_nodatasum(struct btrfs_work *work)
{
+ struct btrfs_fs_info *fs_info;
int ret;
struct scrub_fixup_nodatasum *fixup;
struct scrub_ctx *sctx;
@@ -798,6 +799,7 @@ static void scrub_fixup_nodatasum(struct btrfs_work *work)
fixup = container_of(work, struct scrub_fixup_nodatasum, work);
sctx = fixup->sctx;
+ fs_info = fixup->root->fs_info;
path = btrfs_alloc_path();
if (!path) {
@@ -823,9 +825,8 @@ static void scrub_fixup_nodatasum(struct btrfs_work *work)
* (once it's finished) and rewrite the failed sector if a good copy
* can be found.
*/
- ret = iterate_inodes_from_logical(fixup->logical, fixup->root->fs_info,
- path, scrub_fixup_readpage,
- fixup);
+ ret = iterate_inodes_from_logical(fixup->logical, fs_info, path,
+ scrub_fixup_readpage, fixup);
if (ret < 0) {
uncorrectable = 1;
goto out;
@@ -843,9 +844,9 @@ static void scrub_fixup_nodatasum(struct btrfs_work *work)
spin_lock(&sctx->stat_lock);
++sctx->stat.uncorrectable_errors;
spin_unlock(&sctx->stat_lock);
- btrfs_dev_replace_stats_inc(&sctx->fs_info->dev_replace.
- num_uncorrectable_read_errors);
- btrfs_err_rl_in_rcu(sctx->fs_info,
+ btrfs_dev_replace_stats_inc(
+ &fs_info->dev_replace.num_uncorrectable_read_errors);
+ btrfs_err_rl_in_rcu(fs_info,
"unable to fixup (nodatasum) error at logical %llu on dev %s",
fixup->logical, rcu_str_deref(fixup->dev->name));
}
@@ -1176,8 +1177,7 @@ static int scrub_handle_errored_block(struct scrub_block *sblock_to_check)
if (scrub_write_page_to_dev_replace(sblock_other,
page_num) != 0) {
btrfs_dev_replace_stats_inc(
- &sctx->fs_info->dev_replace.
- num_write_errors);
+ &fs_info->dev_replace.num_write_errors);
success = 0;
}
} else if (sblock_other) {
@@ -1563,6 +1563,7 @@ static int scrub_repair_page_from_good_copy(struct scrub_block *sblock_bad,
{
struct scrub_page *page_bad = sblock_bad->pagev[page_num];
struct scrub_page *page_good = sblock_good->pagev[page_num];
+ struct btrfs_fs_info *fs_info = sblock_bad->sctx->fs_info;
BUG_ON(page_bad->page == NULL);
BUG_ON(page_good->page == NULL);
@@ -1572,7 +1573,7 @@ static int scrub_repair_page_from_good_copy(struct scrub_block *sblock_bad,
int ret;
if (!page_bad->dev->bdev) {
- btrfs_warn_rl(sblock_bad->sctx->fs_info,
+ btrfs_warn_rl(fs_info,
"scrub_repair_page_from_good_copy(bdev == NULL) is unexpected");
return -EIO;
}
@@ -1594,8 +1595,7 @@ static int scrub_repair_page_from_good_copy(struct scrub_block *sblock_bad,
btrfs_dev_stat_inc_and_print(page_bad->dev,
BTRFS_DEV_STAT_WRITE_ERRS);
btrfs_dev_replace_stats_inc(
- &sblock_bad->sctx->fs_info->
- dev_replace.num_write_errors);
+ &fs_info->dev_replace.num_write_errors);
bio_put(bio);
return -EIO;
}
@@ -1607,6 +1607,7 @@ static int scrub_repair_page_from_good_copy(struct scrub_block *sblock_bad,
static void scrub_write_block_to_dev_replace(struct scrub_block *sblock)
{
+ struct btrfs_fs_info *fs_info = sblock->sctx->fs_info;
int page_num;
/*
@@ -1622,8 +1623,7 @@ static void scrub_write_block_to_dev_replace(struct scrub_block *sblock)
ret = scrub_write_page_to_dev_replace(sblock, page_num);
if (ret)
btrfs_dev_replace_stats_inc(
- &sblock->sctx->fs_info->dev_replace.
- num_write_errors);
+ &fs_info->dev_replace.num_write_errors);
}
}
@@ -1857,8 +1857,7 @@ static int scrub_checksum_tree_block(struct scrub_block *sblock)
{
struct scrub_ctx *sctx = sblock->sctx;
struct btrfs_header *h;
- struct btrfs_root *root = sctx->fs_info->dev_root;
- struct btrfs_fs_info *fs_info = root->fs_info;
+ struct btrfs_fs_info *fs_info = sctx->fs_info;
u8 calculated_csum[BTRFS_CSUM_SIZE];
u8 on_disk_csum[BTRFS_CSUM_SIZE];
struct page *page;
@@ -2138,6 +2137,7 @@ static void scrub_missing_raid56_worker(struct btrfs_work *work)
{
struct scrub_block *sblock = container_of(work, struct scrub_block, work);
struct scrub_ctx *sctx = sblock->sctx;
+ struct btrfs_fs_info *fs_info = sctx->fs_info;
u64 logical;
struct btrfs_device *dev;
@@ -2151,14 +2151,14 @@ static void scrub_missing_raid56_worker(struct btrfs_work *work)
spin_lock(&sctx->stat_lock);
sctx->stat.read_errors++;
spin_unlock(&sctx->stat_lock);
- btrfs_err_rl_in_rcu(sctx->fs_info,
+ btrfs_err_rl_in_rcu(fs_info,
"IO error rebuilding logical %llu for dev %s",
logical, rcu_str_deref(dev->name));
} else if (sblock->header_error || sblock->checksum_error) {
spin_lock(&sctx->stat_lock);
sctx->stat.uncorrectable_errors++;
spin_unlock(&sctx->stat_lock);
- btrfs_err_rl_in_rcu(sctx->fs_info,
+ btrfs_err_rl_in_rcu(fs_info,
"failed to rebuild valid logical %llu for dev %s",
logical, rcu_str_deref(dev->name));
} else {
@@ -2749,6 +2749,7 @@ static void scrub_parity_bio_endio_worker(struct btrfs_work *work)
static void scrub_parity_bio_endio(struct bio *bio)
{
struct scrub_parity *sparity = (struct scrub_parity *)bio->bi_private;
+ struct btrfs_fs_info *fs_info = sparity->sctx->fs_info;
if (bio->bi_error)
bitmap_or(sparity->ebitmap, sparity->ebitmap, sparity->dbitmap,
@@ -2758,14 +2759,14 @@ static void scrub_parity_bio_endio(struct bio *bio)
btrfs_init_work(&sparity->work, btrfs_scrubparity_helper,
scrub_parity_bio_endio_worker, NULL, NULL);
- btrfs_queue_work(sparity->sctx->fs_info->scrub_parity_workers,
- &sparity->work);
+ btrfs_queue_work(fs_info->scrub_parity_workers, &sparity->work);
}
static void scrub_parity_check_and_repair(struct scrub_parity *sparity)
{
struct scrub_ctx *sctx = sparity->sctx;
- struct btrfs_root *dev_root = sctx->fs_info->dev_root;
+ struct btrfs_fs_info *fs_info = sctx->fs_info;
+ struct btrfs_root *dev_root = fs_info->dev_root;
struct bio *bio;
struct btrfs_raid_bio *rbio;
struct scrub_page *spage;
@@ -2778,8 +2779,7 @@ static void scrub_parity_check_and_repair(struct scrub_parity *sparity)
goto out;
length = sparity->logic_end - sparity->logic_start;
- ret = btrfs_map_sblock(sctx->fs_info, BTRFS_MAP_WRITE,
- sparity->logic_start,
+ ret = btrfs_map_sblock(fs_info, BTRFS_MAP_WRITE, sparity->logic_start,
&length, &bbio, 0, 1);
if (ret || !bbio || !bbio->raid_map)
goto bbio_out;
@@ -2866,7 +2866,7 @@ static noinline_for_stack int scrub_raid56_parity(struct scrub_ctx *sctx,
int extent_mirror_num;
int stop_loop = 0;
- nsectors = div_u64(map->stripe_len, root->fs_info->sectorsize);
+ nsectors = div_u64(map->stripe_len, fs_info->sectorsize);
bitmap_len = scrub_calc_parity_bitmap_len(nsectors);
sparity = kzalloc(sizeof(struct scrub_parity) + 2 * bitmap_len,
GFP_NOFS);
@@ -2937,7 +2937,7 @@ static noinline_for_stack int scrub_raid56_parity(struct scrub_ctx *sctx,
goto next;
if (key.type == BTRFS_METADATA_ITEM_KEY)
- bytes = root->fs_info->nodesize;
+ bytes = fs_info->nodesize;
else
bytes = key.offset;
@@ -3290,7 +3290,7 @@ static noinline_for_stack int scrub_stripe(struct scrub_ctx *sctx,
goto next;
if (key.type == BTRFS_METADATA_ITEM_KEY)
- bytes = root->fs_info->nodesize;
+ bytes = fs_info->nodesize;
else
bytes = key.offset;
@@ -3497,8 +3497,8 @@ int scrub_enumerate_chunks(struct scrub_ctx *sctx,
{
struct btrfs_dev_extent *dev_extent = NULL;
struct btrfs_path *path;
- struct btrfs_root *root = sctx->fs_info->dev_root;
- struct btrfs_fs_info *fs_info = root->fs_info;
+ struct btrfs_fs_info *fs_info = sctx->fs_info;
+ struct btrfs_root *root = fs_info->dev_root;
u64 length;
u64 chunk_offset;
int ret = 0;
@@ -3747,16 +3747,16 @@ static noinline_for_stack int scrub_supers(struct scrub_ctx *sctx,
u64 bytenr;
u64 gen;
int ret;
- struct btrfs_root *root = sctx->fs_info->dev_root;
+ struct btrfs_fs_info *fs_info = sctx->fs_info;
- if (test_bit(BTRFS_FS_STATE_ERROR, &root->fs_info->fs_state))
+ if (test_bit(BTRFS_FS_STATE_ERROR, &fs_info->fs_state))
return -EIO;
/* Seed devices of a new filesystem has their own generation. */
- if (scrub_dev->fs_devices != root->fs_info->fs_devices)
+ if (scrub_dev->fs_devices != fs_info->fs_devices)
gen = scrub_dev->generation;
else
- gen = root->fs_info->last_trans_committed;
+ gen = fs_info->last_trans_committed;
for (i = 0; i < BTRFS_SUPER_MIRROR_MAX; i++) {
bytenr = btrfs_sb_offset(i);
@@ -4052,16 +4052,17 @@ int btrfs_scrub_cancel_dev(struct btrfs_fs_info *fs_info,
int btrfs_scrub_progress(struct btrfs_root *root, u64 devid,
struct btrfs_scrub_progress *progress)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_device *dev;
struct scrub_ctx *sctx = NULL;
- mutex_lock(&root->fs_info->fs_devices->device_list_mutex);
- dev = btrfs_find_device(root->fs_info, devid, NULL, NULL);
+ mutex_lock(&fs_info->fs_devices->device_list_mutex);
+ dev = btrfs_find_device(fs_info, devid, NULL, NULL);
if (dev)
sctx = dev->scrub_device;
if (sctx)
memcpy(progress, &sctx->stat, sizeof(*progress));
- mutex_unlock(&root->fs_info->fs_devices->device_list_mutex);
+ mutex_unlock(&fs_info->fs_devices->device_list_mutex);
return dev ? (sctx ? 0 : -ENOTCONN) : -ENODEV;
}
@@ -4171,20 +4172,17 @@ static void copy_nocow_pages_worker(struct btrfs_work *work)
struct scrub_copy_nocow_ctx *nocow_ctx =
container_of(work, struct scrub_copy_nocow_ctx, work);
struct scrub_ctx *sctx = nocow_ctx->sctx;
+ struct btrfs_fs_info *fs_info = sctx->fs_info;
+ struct btrfs_root *root = fs_info->extent_root;
u64 logical = nocow_ctx->logical;
u64 len = nocow_ctx->len;
int mirror_num = nocow_ctx->mirror_num;
u64 physical_for_dev_replace = nocow_ctx->physical_for_dev_replace;
int ret;
struct btrfs_trans_handle *trans = NULL;
- struct btrfs_fs_info *fs_info;
struct btrfs_path *path;
- struct btrfs_root *root;
int not_written = 0;
- fs_info = sctx->fs_info;
- root = fs_info->extent_root;
-
path = btrfs_alloc_path();
if (!path) {
spin_lock(&sctx->stat_lock);
diff --git a/fs/btrfs/send.c b/fs/btrfs/send.c
index 78845cc..399b36b 100644
--- a/fs/btrfs/send.c
+++ b/fs/btrfs/send.c
@@ -1431,9 +1431,9 @@ static int find_extent_clone(struct send_ctx *sctx,
extent_item_pos = logical - found_key.objectid;
else
extent_item_pos = 0;
- ret = iterate_extent_inodes(fs_info,
- found_key.objectid, extent_item_pos, 1,
- __iterate_backrefs, backref_ctx);
+ ret = iterate_extent_inodes(fs_info, found_key.objectid,
+ extent_item_pos, 1, __iterate_backrefs,
+ backref_ctx);
if (ret < 0)
goto out;
@@ -6137,17 +6137,17 @@ static void btrfs_root_dec_send_in_progress(struct btrfs_root* root)
*/
if (root->send_in_progress < 0)
btrfs_err(root->fs_info,
- "send_in_progres unbalanced %d root %llu",
- root->send_in_progress, root->root_key.objectid);
+ "send_in_progres unbalanced %d root %llu",
+ root->send_in_progress, root->root_key.objectid);
spin_unlock(&root->root_item_lock);
}
long btrfs_ioctl_send(struct file *mnt_file, void __user *arg_)
{
int ret = 0;
- struct btrfs_root *send_root;
+ struct btrfs_root *send_root = BTRFS_I(file_inode(mnt_file))->root;
+ struct btrfs_fs_info *fs_info = send_root->fs_info;
struct btrfs_root *clone_root;
- struct btrfs_fs_info *fs_info;
struct btrfs_ioctl_send_args *arg = NULL;
struct btrfs_key key;
struct send_ctx *sctx = NULL;
@@ -6161,9 +6161,6 @@ long btrfs_ioctl_send(struct file *mnt_file, void __user *arg_)
if (!capable(CAP_SYS_ADMIN))
return -EPERM;
- send_root = BTRFS_I(file_inode(mnt_file))->root;
- fs_info = send_root->fs_info;
-
/*
* The subvolume must remain read-only during send, protect against
* making it RW. This also protects against deletion.
diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index c91a51f..fa2f33f 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -411,8 +411,8 @@ int btrfs_parse_options(struct btrfs_root *root, char *options,
bool saved_compress_force;
int no_compress = 0;
- cache_gen = btrfs_super_cache_generation(root->fs_info->super_copy);
- if (btrfs_fs_compat_ro(root->fs_info, FREE_SPACE_TREE))
+ cache_gen = btrfs_super_cache_generation(info->super_copy);
+ if (btrfs_fs_compat_ro(info, FREE_SPACE_TREE))
btrfs_set_opt(info->mount_opt, FREE_SPACE_TREE);
else if (cache_gen)
btrfs_set_opt(info->mount_opt, SPACE_CACHE);
@@ -442,7 +442,7 @@ int btrfs_parse_options(struct btrfs_root *root, char *options,
token = match_token(p, tokens, args);
switch (token) {
case Opt_degraded:
- btrfs_info(root->fs_info, "allowing degraded mounts");
+ btrfs_info(info, "allowing degraded mounts");
btrfs_set_opt(info->mount_opt, DEGRADED);
break;
case Opt_subvol:
@@ -461,11 +461,10 @@ int btrfs_parse_options(struct btrfs_root *root, char *options,
case Opt_datasum:
if (btrfs_test_opt(info, NODATASUM)) {
if (btrfs_test_opt(info, NODATACOW))
- btrfs_info(root->fs_info,
+ btrfs_info(info,
"setting datasum, datacow enabled");
else
- btrfs_info(root->fs_info,
- "setting datasum");
+ btrfs_info(info, "setting datasum");
}
btrfs_clear_opt(info->mount_opt, NODATACOW);
btrfs_clear_opt(info->mount_opt, NODATASUM);
@@ -474,11 +473,10 @@ int btrfs_parse_options(struct btrfs_root *root, char *options,
if (!btrfs_test_opt(info, NODATACOW)) {
if (!btrfs_test_opt(info, COMPRESS) ||
!btrfs_test_opt(info, FORCE_COMPRESS)) {
- btrfs_info(root->fs_info,
+ btrfs_info(info,
"setting nodatacow, compression disabled");
} else {
- btrfs_info(root->fs_info,
- "setting nodatacow");
+ btrfs_info(info, "setting nodatacow");
}
}
btrfs_clear_opt(info->mount_opt, COMPRESS);
@@ -545,8 +543,7 @@ int btrfs_parse_options(struct btrfs_root *root, char *options,
compress_force != saved_compress_force)) ||
(!btrfs_test_opt(info, COMPRESS) &&
no_compress == 1)) {
- btrfs_info(root->fs_info,
- "%s %s compression",
+ btrfs_info(info, "%s %s compression",
(compress_force) ? "force" : "use",
compress_type);
}
@@ -594,10 +591,10 @@ int btrfs_parse_options(struct btrfs_root *root, char *options,
if (info->max_inline) {
info->max_inline = min_t(u64,
info->max_inline,
- root->fs_info->sectorsize);
+ info->sectorsize);
}
- btrfs_info(root->fs_info, "max_inline at %llu",
- info->max_inline);
+ btrfs_info(info, "max_inline at %llu",
+ info->max_inline);
} else {
ret = -ENOMEM;
goto out;
@@ -610,8 +607,7 @@ int btrfs_parse_options(struct btrfs_root *root, char *options,
info->alloc_start = memparse(num, NULL);
mutex_unlock(&info->chunk_mutex);
kfree(num);
- btrfs_info(root->fs_info,
- "allocations start at %llu",
+ btrfs_info(info, "allocations start at %llu",
info->alloc_start);
} else {
ret = -ENOMEM;
@@ -620,16 +616,15 @@ int btrfs_parse_options(struct btrfs_root *root, char *options,
break;
case Opt_acl:
#ifdef CONFIG_BTRFS_FS_POSIX_ACL
- root->fs_info->sb->s_flags |= MS_POSIXACL;
+ info->sb->s_flags |= MS_POSIXACL;
break;
#else
- btrfs_err(root->fs_info,
- "support for ACL not compiled in!");
+ btrfs_err(info, "support for ACL not compiled in!");
ret = -EINVAL;
goto out;
#endif
case Opt_noacl:
- root->fs_info->sb->s_flags &= ~MS_POSIXACL;
+ info->sb->s_flags &= ~MS_POSIXACL;
break;
case Opt_notreelog:
btrfs_set_and_info(info, NOTREELOG,
@@ -658,8 +653,8 @@ int btrfs_parse_options(struct btrfs_root *root, char *options,
goto out;
} else if (intarg >= 0) {
info->metadata_ratio = intarg;
- btrfs_info(root->fs_info, "metadata ratio %d",
- info->metadata_ratio);
+ btrfs_info(info, "metadata ratio %d",
+ info->metadata_ratio);
} else {
ret = -EINVAL;
goto out;
@@ -677,15 +672,14 @@ int btrfs_parse_options(struct btrfs_root *root, char *options,
case Opt_space_cache_version:
if (token == Opt_space_cache ||
strcmp(args[0].from, "v1") == 0) {
- btrfs_clear_opt(root->fs_info->mount_opt,
+ btrfs_clear_opt(info->mount_opt,
FREE_SPACE_TREE);
btrfs_set_and_info(info, SPACE_CACHE,
- "enabling disk space caching");
+ "enabling disk space caching");
} else if (strcmp(args[0].from, "v2") == 0) {
- btrfs_clear_opt(root->fs_info->mount_opt,
+ btrfs_clear_opt(info->mount_opt,
SPACE_CACHE);
- btrfs_set_and_info(info,
- FREE_SPACE_TREE,
+ btrfs_set_and_info(info, FREE_SPACE_TREE,
"enabling free space tree");
} else {
ret = -EINVAL;
@@ -697,14 +691,12 @@ int btrfs_parse_options(struct btrfs_root *root, char *options,
break;
case Opt_no_space_cache:
if (btrfs_test_opt(info, SPACE_CACHE)) {
- btrfs_clear_and_info(info,
- SPACE_CACHE,
- "disabling disk space caching");
+ btrfs_clear_and_info(info, SPACE_CACHE,
+ "disabling disk space caching");
}
if (btrfs_test_opt(info, FREE_SPACE_TREE)) {
- btrfs_clear_and_info(info,
- FREE_SPACE_TREE,
- "disabling free space tree");
+ btrfs_clear_and_info(info, FREE_SPACE_TREE,
+ "disabling free space tree");
}
break;
case Opt_inode_cache:
@@ -737,10 +729,10 @@ int btrfs_parse_options(struct btrfs_root *root, char *options,
"disabling auto defrag");
break;
case Opt_recovery:
- btrfs_warn(root->fs_info,
+ btrfs_warn(info,
"'recovery' is deprecated, use 'usebackuproot' instead");
case Opt_usebackuproot:
- btrfs_info(root->fs_info,
+ btrfs_info(info,
"trying to use backup root at mount time");
btrfs_set_opt(info->mount_opt, USEBACKUPROOT);
break;
@@ -749,14 +741,14 @@ int btrfs_parse_options(struct btrfs_root *root, char *options,
break;
#ifdef CONFIG_BTRFS_FS_CHECK_INTEGRITY
case Opt_check_integrity_including_extent_data:
- btrfs_info(root->fs_info,
+ btrfs_info(info,
"enabling check integrity including extent data");
btrfs_set_opt(info->mount_opt,
CHECK_INTEGRITY_INCLUDING_EXTENT_DATA);
btrfs_set_opt(info->mount_opt, CHECK_INTEGRITY);
break;
case Opt_check_integrity:
- btrfs_info(root->fs_info, "enabling check integrity");
+ btrfs_info(info, "enabling check integrity");
btrfs_set_opt(info->mount_opt, CHECK_INTEGRITY);
break;
case Opt_check_integrity_print_mask:
@@ -765,7 +757,7 @@ int btrfs_parse_options(struct btrfs_root *root, char *options,
goto out;
} else if (intarg >= 0) {
info->check_integrity_print_mask = intarg;
- btrfs_info(root->fs_info,
+ btrfs_info(info,
"check_integrity_print_mask 0x%x",
info->check_integrity_print_mask);
} else {
@@ -777,8 +769,8 @@ int btrfs_parse_options(struct btrfs_root *root, char *options,
case Opt_check_integrity_including_extent_data:
case Opt_check_integrity:
case Opt_check_integrity_print_mask:
- btrfs_err(root->fs_info,
- "support for check_integrity* not compiled in!");
+ btrfs_err(info,
+ "support for check_integrity* not compiled in!");
ret = -EINVAL;
goto out;
#endif
@@ -798,20 +790,19 @@ int btrfs_parse_options(struct btrfs_root *root, char *options,
intarg = 0;
ret = match_int(&args[0], &intarg);
if (ret < 0) {
- btrfs_err(root->fs_info,
- "invalid commit interval");
+ btrfs_err(info, "invalid commit interval");
ret = -EINVAL;
goto out;
}
if (intarg > 0) {
if (intarg > 300) {
- btrfs_warn(root->fs_info,
+ btrfs_warn(info,
"excessive commit interval %d",
intarg);
}
info->commit_interval = intarg;
} else {
- btrfs_info(root->fs_info,
+ btrfs_info(info,
"using default commit interval %ds",
BTRFS_DEFAULT_COMMIT_INTERVAL);
info->commit_interval = BTRFS_DEFAULT_COMMIT_INTERVAL;
@@ -819,23 +810,22 @@ int btrfs_parse_options(struct btrfs_root *root, char *options,
break;
#ifdef CONFIG_BTRFS_DEBUG
case Opt_fragment_all:
- btrfs_info(root->fs_info, "fragmenting all space");
+ btrfs_info(info, "fragmenting all space");
btrfs_set_opt(info->mount_opt, FRAGMENT_DATA);
btrfs_set_opt(info->mount_opt, FRAGMENT_METADATA);
break;
case Opt_fragment_metadata:
- btrfs_info(root->fs_info, "fragmenting metadata");
+ btrfs_info(info, "fragmenting metadata");
btrfs_set_opt(info->mount_opt,
FRAGMENT_METADATA);
break;
case Opt_fragment_data:
- btrfs_info(root->fs_info, "fragmenting data");
+ btrfs_info(info, "fragmenting data");
btrfs_set_opt(info->mount_opt, FRAGMENT_DATA);
break;
#endif
case Opt_err:
- btrfs_info(root->fs_info,
- "unrecognized mount option '%s'", p);
+ btrfs_info(info, "unrecognized mount option '%s'", p);
ret = -EINVAL;
goto out;
default:
@@ -847,22 +837,22 @@ int btrfs_parse_options(struct btrfs_root *root, char *options,
* Extra check for current option against current flag
*/
if (btrfs_test_opt(info, NOLOGREPLAY) && !(new_flags & MS_RDONLY)) {
- btrfs_err(root->fs_info,
+ btrfs_err(info,
"nologreplay must be used with ro mount option");
ret = -EINVAL;
}
out:
- if (btrfs_fs_compat_ro(root->fs_info, FREE_SPACE_TREE) &&
+ if (btrfs_fs_compat_ro(info, FREE_SPACE_TREE) &&
!btrfs_test_opt(info, FREE_SPACE_TREE) &&
!btrfs_test_opt(info, CLEAR_CACHE)) {
- btrfs_err(root->fs_info, "cannot disable free space tree");
+ btrfs_err(info, "cannot disable free space tree");
ret = -EINVAL;
}
if (!ret && btrfs_test_opt(info, SPACE_CACHE))
- btrfs_info(root->fs_info, "disk space caching is enabled");
+ btrfs_info(info, "disk space caching is enabled");
if (!ret && btrfs_test_opt(info, FREE_SPACE_TREE))
- btrfs_info(root->fs_info, "using free space tree");
+ btrfs_info(info, "using free space tree");
kfree(orig);
return ret;
}
@@ -1223,7 +1213,6 @@ int btrfs_sync_fs(struct super_block *sb, int wait)
static int btrfs_show_options(struct seq_file *seq, struct dentry *dentry)
{
struct btrfs_fs_info *info = btrfs_sb(dentry->d_sb);
- struct btrfs_root *root = info->tree_root;
char *compress_type;
if (btrfs_test_opt(info, DEGRADED))
@@ -1265,7 +1254,7 @@ static int btrfs_show_options(struct seq_file *seq, struct dentry *dentry)
seq_puts(seq, ",flushoncommit");
if (btrfs_test_opt(info, DISCARD))
seq_puts(seq, ",discard");
- if (!(root->fs_info->sb->s_flags & MS_POSIXACL))
+ if (!(info->sb->s_flags & MS_POSIXACL))
seq_puts(seq, ",noacl");
if (btrfs_test_opt(info, SPACE_CACHE))
seq_puts(seq, ",space_cache");
@@ -1788,7 +1777,7 @@ static int btrfs_remount(struct super_block *sb, int *flags, char *data)
if (ret)
goto restore;
} else {
- if (test_bit(BTRFS_FS_STATE_ERROR, &root->fs_info->fs_state)) {
+ if (test_bit(BTRFS_FS_STATE_ERROR, &fs_info->fs_state)) {
btrfs_err(fs_info,
"Remounting read-write after error is not allowed");
ret = -EINVAL;
@@ -2246,9 +2235,10 @@ static long btrfs_control_ioctl(struct file *file, unsigned int cmd,
static int btrfs_freeze(struct super_block *sb)
{
struct btrfs_trans_handle *trans;
- struct btrfs_root *root = btrfs_sb(sb)->tree_root;
+ struct btrfs_fs_info *fs_info = btrfs_sb(sb);
+ struct btrfs_root *root = fs_info->tree_root;
- root->fs_info->fs_frozen = 1;
+ fs_info->fs_frozen = 1;
/*
* We don't need a barrier here, we'll wait for any transaction that
* could be in progress on other threads (and do delayed iputs that
@@ -2267,9 +2257,7 @@ static int btrfs_freeze(struct super_block *sb)
static int btrfs_unfreeze(struct super_block *sb)
{
- struct btrfs_root *root = btrfs_sb(sb)->tree_root;
-
- root->fs_info->fs_frozen = 0;
+ btrfs_sb(sb)->fs_frozen = 0;
return 0;
}
diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c
index bec5aa0..7fa8a6a 100644
--- a/fs/btrfs/transaction.c
+++ b/fs/btrfs/transaction.c
@@ -314,9 +314,11 @@ static int record_root_in_trans(struct btrfs_trans_handle *trans,
struct btrfs_root *root,
int force)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
+
if ((test_bit(BTRFS_ROOT_REF_COWS, &root->state) &&
root->last_trans < trans->transid) || force) {
- WARN_ON(root == root->fs_info->extent_root);
+ WARN_ON(root == fs_info->extent_root);
WARN_ON(root->commit_root != root->node);
/*
@@ -331,15 +333,15 @@ static int record_root_in_trans(struct btrfs_trans_handle *trans,
*/
smp_wmb();
- spin_lock(&root->fs_info->fs_roots_radix_lock);
+ spin_lock(&fs_info->fs_roots_radix_lock);
if (root->last_trans == trans->transid && !force) {
- spin_unlock(&root->fs_info->fs_roots_radix_lock);
+ spin_unlock(&fs_info->fs_roots_radix_lock);
return 0;
}
- radix_tree_tag_set(&root->fs_info->fs_roots_radix,
- (unsigned long)root->root_key.objectid,
- BTRFS_ROOT_TRANS_TAG);
- spin_unlock(&root->fs_info->fs_roots_radix_lock);
+ radix_tree_tag_set(&fs_info->fs_roots_radix,
+ (unsigned long)root->root_key.objectid,
+ BTRFS_ROOT_TRANS_TAG);
+ spin_unlock(&fs_info->fs_roots_radix_lock);
root->last_trans = trans->transid;
/* this is pretty tricky. We don't want to
@@ -372,6 +374,7 @@ static int record_root_in_trans(struct btrfs_trans_handle *trans,
void btrfs_add_dropped_root(struct btrfs_trans_handle *trans,
struct btrfs_root *root)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_transaction *cur_trans = trans->transaction;
/* Add ourselves to the transaction dropped list */
@@ -380,16 +383,18 @@ void btrfs_add_dropped_root(struct btrfs_trans_handle *trans,
spin_unlock(&cur_trans->dropped_roots_lock);
/* Make sure we don't try to update the root at commit time */
- spin_lock(&root->fs_info->fs_roots_radix_lock);
- radix_tree_tag_clear(&root->fs_info->fs_roots_radix,
+ spin_lock(&fs_info->fs_roots_radix_lock);
+ radix_tree_tag_clear(&fs_info->fs_roots_radix,
(unsigned long)root->root_key.objectid,
BTRFS_ROOT_TRANS_TAG);
- spin_unlock(&root->fs_info->fs_roots_radix_lock);
+ spin_unlock(&fs_info->fs_roots_radix_lock);
}
int btrfs_record_root_in_trans(struct btrfs_trans_handle *trans,
struct btrfs_root *root)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
+
if (!test_bit(BTRFS_ROOT_REF_COWS, &root->state))
return 0;
@@ -402,9 +407,9 @@ int btrfs_record_root_in_trans(struct btrfs_trans_handle *trans,
!test_bit(BTRFS_ROOT_IN_TRANS_SETUP, &root->state))
return 0;
- mutex_lock(&root->fs_info->reloc_mutex);
+ mutex_lock(&fs_info->reloc_mutex);
record_root_in_trans(trans, root, 0);
- mutex_unlock(&root->fs_info->reloc_mutex);
+ mutex_unlock(&fs_info->reloc_mutex);
return 0;
}
@@ -422,33 +427,36 @@ static inline int is_transaction_blocked(struct btrfs_transaction *trans)
*/
static void wait_current_trans(struct btrfs_root *root)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_transaction *cur_trans;
- spin_lock(&root->fs_info->trans_lock);
- cur_trans = root->fs_info->running_transaction;
+ spin_lock(&fs_info->trans_lock);
+ cur_trans = fs_info->running_transaction;
if (cur_trans && is_transaction_blocked(cur_trans)) {
atomic_inc(&cur_trans->use_count);
- spin_unlock(&root->fs_info->trans_lock);
+ spin_unlock(&fs_info->trans_lock);
- wait_event(root->fs_info->transaction_wait,
+ wait_event(fs_info->transaction_wait,
cur_trans->state >= TRANS_STATE_UNBLOCKED ||
cur_trans->aborted);
btrfs_put_transaction(cur_trans);
} else {
- spin_unlock(&root->fs_info->trans_lock);
+ spin_unlock(&fs_info->trans_lock);
}
}
static int may_wait_transaction(struct btrfs_root *root, int type)
{
- if (test_bit(BTRFS_FS_LOG_RECOVERING, &root->fs_info->flags))
+ struct btrfs_fs_info *fs_info = root->fs_info;
+
+ if (test_bit(BTRFS_FS_LOG_RECOVERING, &fs_info->flags))
return 0;
if (type == TRANS_USERSPACE)
return 1;
if (type == TRANS_START &&
- !atomic_read(&root->fs_info->open_ioctl_trans))
+ !atomic_read(&fs_info->open_ioctl_trans))
return 1;
return 0;
@@ -456,7 +464,9 @@ static int may_wait_transaction(struct btrfs_root *root, int type)
static inline bool need_reserve_reloc_root(struct btrfs_root *root)
{
- if (!root->fs_info->reloc_ctl ||
+ struct btrfs_fs_info *fs_info = root->fs_info;
+
+ if (!fs_info->reloc_ctl ||
!test_bit(BTRFS_ROOT_REF_COWS, &root->state) ||
root->root_key.objectid == BTRFS_TREE_RELOC_OBJECTID ||
root->reloc_root)
@@ -469,6 +479,8 @@ static struct btrfs_trans_handle *
start_transaction(struct btrfs_root *root, unsigned int num_items,
unsigned int type, enum btrfs_reserve_flush_enum flush)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
+
struct btrfs_trans_handle *h;
struct btrfs_transaction *cur_trans;
u64 num_bytes = 0;
@@ -479,7 +491,7 @@ start_transaction(struct btrfs_root *root, unsigned int num_items,
/* Send isn't supposed to start transactions. */
ASSERT(current->journal_info != BTRFS_SEND_TRANS_STUB);
- if (test_bit(BTRFS_FS_STATE_ERROR, &root->fs_info->fs_state))
+ if (test_bit(BTRFS_FS_STATE_ERROR, &fs_info->fs_state))
return ERR_PTR(-EROFS);
if (current->journal_info) {
@@ -496,24 +508,22 @@ start_transaction(struct btrfs_root *root, unsigned int num_items,
* Do the reservation before we join the transaction so we can do all
* the appropriate flushing if need be.
*/
- if (num_items > 0 && root != root->fs_info->chunk_root) {
- qgroup_reserved = num_items * root->fs_info->nodesize;
+ if (num_items > 0 && root != fs_info->chunk_root) {
+ qgroup_reserved = num_items * fs_info->nodesize;
ret = btrfs_qgroup_reserve_meta(root, qgroup_reserved);
if (ret)
return ERR_PTR(ret);
- num_bytes = btrfs_calc_trans_metadata_size(root->fs_info,
- num_items);
+ num_bytes = btrfs_calc_trans_metadata_size(fs_info, num_items);
/*
* Do the reservation for the relocation root creation
*/
if (need_reserve_reloc_root(root)) {
- num_bytes += root->fs_info->nodesize;
+ num_bytes += fs_info->nodesize;
reloc_reserved = true;
}
- ret = btrfs_block_rsv_add(root,
- &root->fs_info->trans_block_rsv,
+ ret = btrfs_block_rsv_add(root, &fs_info->trans_block_rsv,
num_bytes, flush);
if (ret)
goto reserve_fail;
@@ -536,7 +546,7 @@ start_transaction(struct btrfs_root *root, unsigned int num_items,
* transaction and commit it, so we needn't do sb_start_intwrite().
*/
if (type & __TRANS_FREEZABLE)
- sb_start_intwrite(root->fs_info->sb);
+ sb_start_intwrite(fs_info->sb);
if (may_wait_transaction(root, type))
wait_current_trans(root);
@@ -553,7 +563,7 @@ start_transaction(struct btrfs_root *root, unsigned int num_items,
if (ret < 0)
goto join_fail;
- cur_trans = root->fs_info->running_transaction;
+ cur_trans = fs_info->running_transaction;
h->transid = cur_trans->transid;
h->transaction = cur_trans;
@@ -575,9 +585,9 @@ start_transaction(struct btrfs_root *root, unsigned int num_items,
}
if (num_bytes) {
- trace_btrfs_space_reservation(root->fs_info, "transaction",
+ trace_btrfs_space_reservation(fs_info, "transaction",
h->transid, num_bytes, 1);
- h->block_rsv = &root->fs_info->trans_block_rsv;
+ h->block_rsv = &fs_info->trans_block_rsv;
h->bytes_reserved = num_bytes;
h->reloc_reserved = reloc_reserved;
}
@@ -591,11 +601,11 @@ start_transaction(struct btrfs_root *root, unsigned int num_items,
join_fail:
if (type & __TRANS_FREEZABLE)
- sb_end_intwrite(root->fs_info->sb);
+ sb_end_intwrite(fs_info->sb);
kmem_cache_free(btrfs_trans_handle_cachep, h);
alloc_fail:
if (num_bytes)
- btrfs_block_rsv_release(root, &root->fs_info->trans_block_rsv,
+ btrfs_block_rsv_release(root, &fs_info->trans_block_rsv,
num_bytes);
reserve_fail:
btrfs_qgroup_free_meta(root, qgroup_reserved);
@@ -613,6 +623,7 @@ struct btrfs_trans_handle *btrfs_start_transaction_fallback_global_rsv(
unsigned int num_items,
int min_factor)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_trans_handle *trans;
u64 num_bytes;
int ret;
@@ -625,19 +636,17 @@ struct btrfs_trans_handle *btrfs_start_transaction_fallback_global_rsv(
if (IS_ERR(trans))
return trans;
- num_bytes = btrfs_calc_trans_metadata_size(root->fs_info, num_items);
- ret = btrfs_cond_migrate_bytes(root->fs_info,
- &root->fs_info->trans_block_rsv,
- num_bytes,
- min_factor);
+ num_bytes = btrfs_calc_trans_metadata_size(fs_info, num_items);
+ ret = btrfs_cond_migrate_bytes(fs_info, &fs_info->trans_block_rsv,
+ num_bytes, min_factor);
if (ret) {
btrfs_end_transaction(trans, root);
return ERR_PTR(ret);
}
- trans->block_rsv = &root->fs_info->trans_block_rsv;
+ trans->block_rsv = &fs_info->trans_block_rsv;
trans->bytes_reserved = num_bytes;
- trace_btrfs_space_reservation(root->fs_info, "transaction",
+ trace_btrfs_space_reservation(fs_info, "transaction",
trans->transid, num_bytes, 1);
return trans;
@@ -717,16 +726,17 @@ static noinline void wait_for_commit(struct btrfs_root *root,
int btrfs_wait_for_commit(struct btrfs_root *root, u64 transid)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_transaction *cur_trans = NULL, *t;
int ret = 0;
if (transid) {
- if (transid <= root->fs_info->last_trans_committed)
+ if (transid <= fs_info->last_trans_committed)
goto out;
/* find specified transaction */
- spin_lock(&root->fs_info->trans_lock);
- list_for_each_entry(t, &root->fs_info->trans_list, list) {
+ spin_lock(&fs_info->trans_lock);
+ list_for_each_entry(t, &fs_info->trans_list, list) {
if (t->transid == transid) {
cur_trans = t;
atomic_inc(&cur_trans->use_count);
@@ -738,21 +748,21 @@ int btrfs_wait_for_commit(struct btrfs_root *root, u64 transid)
break;
}
}
- spin_unlock(&root->fs_info->trans_lock);
+ spin_unlock(&fs_info->trans_lock);
/*
* The specified transaction doesn't exist, or we
* raced with btrfs_commit_transaction
*/
if (!cur_trans) {
- if (transid > root->fs_info->last_trans_committed)
+ if (transid > fs_info->last_trans_committed)
ret = -EINVAL;
goto out;
}
} else {
/* find newest transaction that is committing | committed */
- spin_lock(&root->fs_info->trans_lock);
- list_for_each_entry_reverse(t, &root->fs_info->trans_list,
+ spin_lock(&fs_info->trans_lock);
+ list_for_each_entry_reverse(t, &fs_info->trans_list,
list) {
if (t->state >= TRANS_STATE_COMMIT_START) {
if (t->state == TRANS_STATE_COMPLETED)
@@ -762,7 +772,7 @@ int btrfs_wait_for_commit(struct btrfs_root *root, u64 transid)
break;
}
}
- spin_unlock(&root->fs_info->trans_lock);
+ spin_unlock(&fs_info->trans_lock);
if (!cur_trans)
goto out; /* nothing committing|committed */
}
@@ -775,18 +785,22 @@ int btrfs_wait_for_commit(struct btrfs_root *root, u64 transid)
void btrfs_throttle(struct btrfs_root *root)
{
- if (!atomic_read(&root->fs_info->open_ioctl_trans))
+ struct btrfs_fs_info *fs_info = root->fs_info;
+
+ if (!atomic_read(&fs_info->open_ioctl_trans))
wait_current_trans(root);
}
static int should_end_transaction(struct btrfs_trans_handle *trans,
struct btrfs_root *root)
{
- if (root->fs_info->global_block_rsv.space_info->full &&
+ struct btrfs_fs_info *fs_info = root->fs_info;
+
+ if (fs_info->global_block_rsv.space_info->full &&
btrfs_check_space_for_delayed_refs(trans, root))
return 1;
- return !!btrfs_block_rsv_check(root, &root->fs_info->global_block_rsv, 5);
+ return !!btrfs_block_rsv_check(root, &fs_info->global_block_rsv, 5);
}
int btrfs_should_end_transaction(struct btrfs_trans_handle *trans,
@@ -858,7 +872,7 @@ static int __btrfs_end_transaction(struct btrfs_trans_handle *trans,
btrfs_trans_release_chunk_metadata(trans);
- if (lock && !atomic_read(&root->fs_info->open_ioctl_trans) &&
+ if (lock && !atomic_read(&info->open_ioctl_trans) &&
should_end_transaction(trans, root) &&
ACCESS_ONCE(cur_trans->state) == TRANS_STATE_RUNNING) {
spin_lock(&info->trans_lock);
@@ -875,7 +889,7 @@ static int __btrfs_end_transaction(struct btrfs_trans_handle *trans,
}
if (trans->type & __TRANS_FREEZABLE)
- sb_end_intwrite(root->fs_info->sb);
+ sb_end_intwrite(info->sb);
WARN_ON(cur_trans != info->running_transaction);
WARN_ON(atomic_read(&cur_trans->num_writers) < 1);
@@ -897,7 +911,7 @@ static int __btrfs_end_transaction(struct btrfs_trans_handle *trans,
btrfs_run_delayed_iputs(root);
if (trans->aborted ||
- test_bit(BTRFS_FS_STATE_ERROR, &root->fs_info->fs_state)) {
+ test_bit(BTRFS_FS_STATE_ERROR, &info->fs_state)) {
wake_up_process(info->transaction_kthread);
err = -EIO;
}
@@ -933,7 +947,8 @@ int btrfs_write_marked_extents(struct btrfs_root *root,
{
int err = 0;
int werr = 0;
- struct address_space *mapping = root->fs_info->btree_inode->i_mapping;
+ struct btrfs_fs_info *fs_info = root->fs_info;
+ struct address_space *mapping = fs_info->btree_inode->i_mapping;
struct extent_state *cached_state = NULL;
u64 start = 0;
u64 end;
@@ -987,7 +1002,8 @@ int btrfs_wait_marked_extents(struct btrfs_root *root,
{
int err = 0;
int werr = 0;
- struct address_space *mapping = root->fs_info->btree_inode->i_mapping;
+ struct btrfs_fs_info *fs_info = root->fs_info;
+ struct address_space *mapping = fs_info->btree_inode->i_mapping;
struct extent_state *cached_state = NULL;
u64 start = 0;
u64 end;
@@ -1022,17 +1038,14 @@ int btrfs_wait_marked_extents(struct btrfs_root *root,
if (root->root_key.objectid == BTRFS_TREE_LOG_OBJECTID) {
if ((mark & EXTENT_DIRTY) &&
- test_and_clear_bit(BTRFS_FS_LOG1_ERR,
- &root->fs_info->flags))
+ test_and_clear_bit(BTRFS_FS_LOG1_ERR, &fs_info->flags))
errors = true;
if ((mark & EXTENT_NEW) &&
- test_and_clear_bit(BTRFS_FS_LOG2_ERR,
- &root->fs_info->flags))
+ test_and_clear_bit(BTRFS_FS_LOG2_ERR, &fs_info->flags))
errors = true;
} else {
- if (test_and_clear_bit(BTRFS_FS_BTREE_ERR,
- &root->fs_info->flags))
+ if (test_and_clear_bit(BTRFS_FS_BTREE_ERR, &fs_info->flags))
errors = true;
}
@@ -1095,7 +1108,8 @@ static int update_cowonly_root(struct btrfs_trans_handle *trans,
int ret;
u64 old_root_bytenr;
u64 old_root_used;
- struct btrfs_root *tree_root = root->fs_info->tree_root;
+ struct btrfs_fs_info *fs_info = root->fs_info;
+ struct btrfs_root *tree_root = fs_info->tree_root;
old_root_used = btrfs_root_used(&root->root_item);
@@ -1148,13 +1162,13 @@ static noinline int commit_cowonly_roots(struct btrfs_trans_handle *trans,
if (ret)
return ret;
- ret = btrfs_run_dev_stats(trans, root->fs_info);
+ ret = btrfs_run_dev_stats(trans, fs_info);
if (ret)
return ret;
- ret = btrfs_run_dev_replace(trans, root->fs_info);
+ ret = btrfs_run_dev_replace(trans, fs_info);
if (ret)
return ret;
- ret = btrfs_run_qgroups(trans, root->fs_info);
+ ret = btrfs_run_qgroups(trans, fs_info);
if (ret)
return ret;
@@ -1210,10 +1224,12 @@ static noinline int commit_cowonly_roots(struct btrfs_trans_handle *trans,
*/
void btrfs_add_dead_root(struct btrfs_root *root)
{
- spin_lock(&root->fs_info->trans_lock);
+ struct btrfs_fs_info *fs_info = root->fs_info;
+
+ spin_lock(&fs_info->trans_lock);
if (list_empty(&root->root_list))
- list_add_tail(&root->root_list, &root->fs_info->dead_roots);
- spin_unlock(&root->fs_info->trans_lock);
+ list_add_tail(&root->root_list, &fs_info->dead_roots);
+ spin_unlock(&fs_info->trans_lock);
}
/*
@@ -1462,7 +1478,7 @@ static noinline int create_pending_snapshot(struct btrfs_trans_handle *trans,
rsv = trans->block_rsv;
trans->block_rsv = &pending->block_rsv;
trans->bytes_reserved = trans->block_rsv->reserved;
- trace_btrfs_space_reservation(root->fs_info, "transaction",
+ trace_btrfs_space_reservation(fs_info, "transaction",
trans->transid,
trans->bytes_reserved, 1);
dentry = pending->dentry;
@@ -1582,7 +1598,7 @@ static noinline int create_pending_snapshot(struct btrfs_trans_handle *trans,
}
key.offset = (u64)-1;
- pending->snap = btrfs_read_fs_root_no_name(root->fs_info, &key);
+ pending->snap = btrfs_read_fs_root_no_name(fs_info, &key);
if (IS_ERR(pending->snap)) {
ret = PTR_ERR(pending->snap);
btrfs_abort_transaction(trans, ret);
@@ -1692,23 +1708,24 @@ static noinline int create_pending_snapshots(struct btrfs_trans_handle *trans,
static void update_super_roots(struct btrfs_root *root)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_root_item *root_item;
struct btrfs_super_block *super;
- super = root->fs_info->super_copy;
+ super = fs_info->super_copy;
- root_item = &root->fs_info->chunk_root->root_item;
+ root_item = &fs_info->chunk_root->root_item;
super->chunk_root = root_item->bytenr;
super->chunk_root_generation = root_item->generation;
super->chunk_root_level = root_item->level;
- root_item = &root->fs_info->tree_root->root_item;
+ root_item = &fs_info->tree_root->root_item;
super->root = root_item->bytenr;
super->generation = root_item->generation;
super->root_level = root_item->level;
- if (btrfs_test_opt(root->fs_info, SPACE_CACHE))
+ if (btrfs_test_opt(fs_info, SPACE_CACHE))
super->cache_generation = root_item->generation;
- if (test_bit(BTRFS_FS_UPDATE_UUID_TREE_GEN, &root->fs_info->flags))
+ if (test_bit(BTRFS_FS_UPDATE_UUID_TREE_GEN, &fs_info->flags))
super->uuid_tree_generation = root_item->generation;
}
@@ -1794,6 +1811,7 @@ int btrfs_commit_transaction_async(struct btrfs_trans_handle *trans,
struct btrfs_root *root,
int wait_for_unblock)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_async_commit *ac;
struct btrfs_transaction *cur_trans;
@@ -1821,7 +1839,7 @@ int btrfs_commit_transaction_async(struct btrfs_trans_handle *trans,
* async commit thread will be the one to unlock it.
*/
if (ac->newtrans->type & __TRANS_FREEZABLE)
- __sb_writers_release(root->fs_info->sb, SB_FREEZE_FS);
+ __sb_writers_release(fs_info->sb, SB_FREEZE_FS);
schedule_work(&ac->work);
@@ -1842,6 +1860,7 @@ int btrfs_commit_transaction_async(struct btrfs_trans_handle *trans,
static void cleanup_transaction(struct btrfs_trans_handle *trans,
struct btrfs_root *root, int err)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_transaction *cur_trans = trans->transaction;
DEFINE_WAIT(wait);
@@ -1849,7 +1868,7 @@ static void cleanup_transaction(struct btrfs_trans_handle *trans,
btrfs_abort_transaction(trans, err);
- spin_lock(&root->fs_info->trans_lock);
+ spin_lock(&fs_info->trans_lock);
/*
* If the transaction is removed from the list, it means this
@@ -1859,25 +1878,25 @@ static void cleanup_transaction(struct btrfs_trans_handle *trans,
BUG_ON(list_empty(&cur_trans->list));
list_del_init(&cur_trans->list);
- if (cur_trans == root->fs_info->running_transaction) {
+ if (cur_trans == fs_info->running_transaction) {
cur_trans->state = TRANS_STATE_COMMIT_DOING;
- spin_unlock(&root->fs_info->trans_lock);
+ spin_unlock(&fs_info->trans_lock);
wait_event(cur_trans->writer_wait,
atomic_read(&cur_trans->num_writers) == 1);
- spin_lock(&root->fs_info->trans_lock);
+ spin_lock(&fs_info->trans_lock);
}
- spin_unlock(&root->fs_info->trans_lock);
+ spin_unlock(&fs_info->trans_lock);
btrfs_cleanup_one_transaction(trans->transaction, root);
- spin_lock(&root->fs_info->trans_lock);
- if (cur_trans == root->fs_info->running_transaction)
- root->fs_info->running_transaction = NULL;
- spin_unlock(&root->fs_info->trans_lock);
+ spin_lock(&fs_info->trans_lock);
+ if (cur_trans == fs_info->running_transaction)
+ fs_info->running_transaction = NULL;
+ spin_unlock(&fs_info->trans_lock);
if (trans->type & __TRANS_FREEZABLE)
- sb_end_intwrite(root->fs_info->sb);
+ sb_end_intwrite(fs_info->sb);
btrfs_put_transaction(cur_trans);
btrfs_put_transaction(cur_trans);
@@ -1885,7 +1904,7 @@ static void cleanup_transaction(struct btrfs_trans_handle *trans,
if (current->journal_info == trans)
current->journal_info = NULL;
- btrfs_scrub_cancel(root->fs_info);
+ btrfs_scrub_cancel(fs_info);
kmem_cache_free(btrfs_trans_handle_cachep, trans);
}
@@ -1913,6 +1932,7 @@ btrfs_wait_pending_ordered(struct btrfs_transaction *cur_trans)
int btrfs_commit_transaction(struct btrfs_trans_handle *trans,
struct btrfs_root *root)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_transaction *cur_trans = trans->transaction;
struct btrfs_transaction *prev_trans = NULL;
int ret;
@@ -1970,11 +1990,11 @@ int btrfs_commit_transaction(struct btrfs_trans_handle *trans,
* hurt to have more than one go through, but there's no
* real advantage to it either.
*/
- mutex_lock(&root->fs_info->ro_block_group_mutex);
+ mutex_lock(&fs_info->ro_block_group_mutex);
if (!test_and_set_bit(BTRFS_TRANS_DIRTY_BG_RUN,
&cur_trans->flags))
run_it = 1;
- mutex_unlock(&root->fs_info->ro_block_group_mutex);
+ mutex_unlock(&fs_info->ro_block_group_mutex);
if (run_it)
ret = btrfs_start_dirty_block_groups(trans, root);
@@ -1984,9 +2004,9 @@ int btrfs_commit_transaction(struct btrfs_trans_handle *trans,
return ret;
}
- spin_lock(&root->fs_info->trans_lock);
+ spin_lock(&fs_info->trans_lock);
if (cur_trans->state >= TRANS_STATE_COMMIT_START) {
- spin_unlock(&root->fs_info->trans_lock);
+ spin_unlock(&fs_info->trans_lock);
atomic_inc(&cur_trans->use_count);
ret = btrfs_end_transaction(trans, root);
@@ -2001,14 +2021,14 @@ int btrfs_commit_transaction(struct btrfs_trans_handle *trans,
}
cur_trans->state = TRANS_STATE_COMMIT_START;
- wake_up(&root->fs_info->transaction_blocked_wait);
+ wake_up(&fs_info->transaction_blocked_wait);
- if (cur_trans->list.prev != &root->fs_info->trans_list) {
+ if (cur_trans->list.prev != &fs_info->trans_list) {
prev_trans = list_entry(cur_trans->list.prev,
struct btrfs_transaction, list);
if (prev_trans->state != TRANS_STATE_COMPLETED) {
atomic_inc(&prev_trans->use_count);
- spin_unlock(&root->fs_info->trans_lock);
+ spin_unlock(&fs_info->trans_lock);
wait_for_commit(root, prev_trans);
ret = prev_trans->aborted;
@@ -2017,15 +2037,15 @@ int btrfs_commit_transaction(struct btrfs_trans_handle *trans,
if (ret)
goto cleanup_transaction;
} else {
- spin_unlock(&root->fs_info->trans_lock);
+ spin_unlock(&fs_info->trans_lock);
}
} else {
- spin_unlock(&root->fs_info->trans_lock);
+ spin_unlock(&fs_info->trans_lock);
}
extwriter_counter_dec(cur_trans, trans->type);
- ret = btrfs_start_delalloc_flush(root->fs_info);
+ ret = btrfs_start_delalloc_flush(fs_info);
if (ret)
goto cleanup_transaction;
@@ -2041,7 +2061,7 @@ int btrfs_commit_transaction(struct btrfs_trans_handle *trans,
if (ret)
goto cleanup_transaction;
- btrfs_wait_delalloc_flush(root->fs_info);
+ btrfs_wait_delalloc_flush(fs_info);
btrfs_wait_pending_ordered(cur_trans);
@@ -2051,9 +2071,9 @@ int btrfs_commit_transaction(struct btrfs_trans_handle *trans,
* commit the transaction. We could have started a join before setting
* COMMIT_DOING so make sure to wait for num_writers to == 1 again.
*/
- spin_lock(&root->fs_info->trans_lock);
+ spin_lock(&fs_info->trans_lock);
cur_trans->state = TRANS_STATE_COMMIT_DOING;
- spin_unlock(&root->fs_info->trans_lock);
+ spin_unlock(&fs_info->trans_lock);
wait_event(cur_trans->writer_wait,
atomic_read(&cur_trans->num_writers) == 1);
@@ -2067,16 +2087,16 @@ int btrfs_commit_transaction(struct btrfs_trans_handle *trans,
* the balancing code from coming in and moving
* extents around in the middle of the commit
*/
- mutex_lock(&root->fs_info->reloc_mutex);
+ mutex_lock(&fs_info->reloc_mutex);
/*
* We needn't worry about the delayed items because we will
* deal with them in create_pending_snapshot(), which is the
* core function of the snapshot creation.
*/
- ret = create_pending_snapshots(trans, root->fs_info);
+ ret = create_pending_snapshots(trans, fs_info);
if (ret) {
- mutex_unlock(&root->fs_info->reloc_mutex);
+ mutex_unlock(&fs_info->reloc_mutex);
goto scrub_continue;
}
@@ -2092,20 +2112,20 @@ int btrfs_commit_transaction(struct btrfs_trans_handle *trans,
*/
ret = btrfs_run_delayed_items(trans, root);
if (ret) {
- mutex_unlock(&root->fs_info->reloc_mutex);
+ mutex_unlock(&fs_info->reloc_mutex);
goto scrub_continue;
}
ret = btrfs_run_delayed_refs(trans, root, (unsigned long)-1);
if (ret) {
- mutex_unlock(&root->fs_info->reloc_mutex);
+ mutex_unlock(&fs_info->reloc_mutex);
goto scrub_continue;
}
/* Reocrd old roots for later qgroup accounting */
- ret = btrfs_qgroup_prepare_account_extents(trans, root->fs_info);
+ ret = btrfs_qgroup_prepare_account_extents(trans, fs_info);
if (ret) {
- mutex_unlock(&root->fs_info->reloc_mutex);
+ mutex_unlock(&fs_info->reloc_mutex);
goto scrub_continue;
}
@@ -2130,12 +2150,12 @@ int btrfs_commit_transaction(struct btrfs_trans_handle *trans,
* from now until after the super is written, we avoid races
* with the tree-log code.
*/
- mutex_lock(&root->fs_info->tree_log_mutex);
+ mutex_lock(&fs_info->tree_log_mutex);
- ret = commit_fs_roots(trans, root->fs_info);
+ ret = commit_fs_roots(trans, fs_info);
if (ret) {
- mutex_unlock(&root->fs_info->tree_log_mutex);
- mutex_unlock(&root->fs_info->reloc_mutex);
+ mutex_unlock(&fs_info->tree_log_mutex);
+ mutex_unlock(&fs_info->reloc_mutex);
goto scrub_continue;
}
@@ -2143,28 +2163,28 @@ int btrfs_commit_transaction(struct btrfs_trans_handle *trans,
* Since the transaction is done, we can apply the pending changes
* before the next transaction.
*/
- btrfs_apply_pending_changes(root->fs_info);
+ btrfs_apply_pending_changes(fs_info);
/* commit_fs_roots gets rid of all the tree log roots, it is now
* safe to free the root of tree log roots
*/
- btrfs_free_log_root_tree(trans, root->fs_info);
+ btrfs_free_log_root_tree(trans, fs_info);
/*
* Since fs roots are all committed, we can get a quite accurate
* new_roots. So let's do quota accounting.
*/
- ret = btrfs_qgroup_account_extents(trans, root->fs_info);
+ ret = btrfs_qgroup_account_extents(trans, fs_info);
if (ret < 0) {
- mutex_unlock(&root->fs_info->tree_log_mutex);
- mutex_unlock(&root->fs_info->reloc_mutex);
+ mutex_unlock(&fs_info->tree_log_mutex);
+ mutex_unlock(&fs_info->reloc_mutex);
goto scrub_continue;
}
ret = commit_cowonly_roots(trans, root);
if (ret) {
- mutex_unlock(&root->fs_info->tree_log_mutex);
- mutex_unlock(&root->fs_info->reloc_mutex);
+ mutex_unlock(&fs_info->tree_log_mutex);
+ mutex_unlock(&fs_info->reloc_mutex);
goto scrub_continue;
}
@@ -2174,64 +2194,64 @@ int btrfs_commit_transaction(struct btrfs_trans_handle *trans,
*/
if (unlikely(ACCESS_ONCE(cur_trans->aborted))) {
ret = cur_trans->aborted;
- mutex_unlock(&root->fs_info->tree_log_mutex);
- mutex_unlock(&root->fs_info->reloc_mutex);
+ mutex_unlock(&fs_info->tree_log_mutex);
+ mutex_unlock(&fs_info->reloc_mutex);
goto scrub_continue;
}
btrfs_prepare_extent_commit(trans, root);
- cur_trans = root->fs_info->running_transaction;
+ cur_trans = fs_info->running_transaction;
- btrfs_set_root_node(&root->fs_info->tree_root->root_item,
- root->fs_info->tree_root->node);
- list_add_tail(&root->fs_info->tree_root->dirty_list,
+ btrfs_set_root_node(&fs_info->tree_root->root_item,
+ fs_info->tree_root->node);
+ list_add_tail(&fs_info->tree_root->dirty_list,
&cur_trans->switch_commits);
- btrfs_set_root_node(&root->fs_info->chunk_root->root_item,
- root->fs_info->chunk_root->node);
- list_add_tail(&root->fs_info->chunk_root->dirty_list,
+ btrfs_set_root_node(&fs_info->chunk_root->root_item,
+ fs_info->chunk_root->node);
+ list_add_tail(&fs_info->chunk_root->dirty_list,
&cur_trans->switch_commits);
- switch_commit_roots(cur_trans, root->fs_info);
+ switch_commit_roots(cur_trans, fs_info);
assert_qgroups_uptodate(trans);
ASSERT(list_empty(&cur_trans->dirty_bgs));
ASSERT(list_empty(&cur_trans->io_bgs));
update_super_roots(root);
- btrfs_set_super_log_root(root->fs_info->super_copy, 0);
- btrfs_set_super_log_root_level(root->fs_info->super_copy, 0);
- memcpy(root->fs_info->super_for_commit, root->fs_info->super_copy,
- sizeof(*root->fs_info->super_copy));
+ btrfs_set_super_log_root(fs_info->super_copy, 0);
+ btrfs_set_super_log_root_level(fs_info->super_copy, 0);
+ memcpy(fs_info->super_for_commit, fs_info->super_copy,
+ sizeof(*fs_info->super_copy));
- btrfs_update_commit_device_size(root->fs_info);
+ btrfs_update_commit_device_size(fs_info);
btrfs_update_commit_device_bytes_used(root, cur_trans);
- clear_bit(BTRFS_FS_LOG1_ERR, &root->fs_info->flags);
- clear_bit(BTRFS_FS_LOG2_ERR, &root->fs_info->flags);
+ clear_bit(BTRFS_FS_LOG1_ERR, &fs_info->flags);
+ clear_bit(BTRFS_FS_LOG2_ERR, &fs_info->flags);
btrfs_trans_release_chunk_metadata(trans);
- spin_lock(&root->fs_info->trans_lock);
+ spin_lock(&fs_info->trans_lock);
cur_trans->state = TRANS_STATE_UNBLOCKED;
- root->fs_info->running_transaction = NULL;
- spin_unlock(&root->fs_info->trans_lock);
- mutex_unlock(&root->fs_info->reloc_mutex);
+ fs_info->running_transaction = NULL;
+ spin_unlock(&fs_info->trans_lock);
+ mutex_unlock(&fs_info->reloc_mutex);
- wake_up(&root->fs_info->transaction_wait);
+ wake_up(&fs_info->transaction_wait);
ret = btrfs_write_and_wait_transaction(trans, root);
if (ret) {
- btrfs_handle_fs_error(root->fs_info, ret,
- "Error while writing out transaction");
- mutex_unlock(&root->fs_info->tree_log_mutex);
+ btrfs_handle_fs_error(fs_info, ret,
+ "Error while writing out transaction");
+ mutex_unlock(&fs_info->tree_log_mutex);
goto scrub_continue;
}
ret = write_ctree_super(trans, root, 0);
if (ret) {
- mutex_unlock(&root->fs_info->tree_log_mutex);
+ mutex_unlock(&fs_info->tree_log_mutex);
goto scrub_continue;
}
@@ -2239,14 +2259,14 @@ int btrfs_commit_transaction(struct btrfs_trans_handle *trans,
* the super is written, we can safely allow the tree-loggers
* to go about their business
*/
- mutex_unlock(&root->fs_info->tree_log_mutex);
+ mutex_unlock(&fs_info->tree_log_mutex);
btrfs_finish_extent_commit(trans, root);
if (test_bit(BTRFS_TRANS_HAVE_FREE_BGS, &cur_trans->flags))
- btrfs_clear_space_info_full(root->fs_info);
+ btrfs_clear_space_info_full(fs_info);
- root->fs_info->last_trans_committed = cur_trans->transid;
+ fs_info->last_trans_committed = cur_trans->transid;
/*
* We needn't acquire the lock here because there is no other task
* which can change it.
@@ -2254,15 +2274,15 @@ int btrfs_commit_transaction(struct btrfs_trans_handle *trans,
cur_trans->state = TRANS_STATE_COMPLETED;
wake_up(&cur_trans->commit_wait);
- spin_lock(&root->fs_info->trans_lock);
+ spin_lock(&fs_info->trans_lock);
list_del_init(&cur_trans->list);
- spin_unlock(&root->fs_info->trans_lock);
+ spin_unlock(&fs_info->trans_lock);
btrfs_put_transaction(cur_trans);
btrfs_put_transaction(cur_trans);
if (trans->type & __TRANS_FREEZABLE)
- sb_end_intwrite(root->fs_info->sb);
+ sb_end_intwrite(fs_info->sb);
trace_btrfs_transaction_commit(root);
@@ -2277,9 +2297,8 @@ int btrfs_commit_transaction(struct btrfs_trans_handle *trans,
* If fs has been frozen, we can not handle delayed iputs, otherwise
* it'll result in deadlock about SB_FREEZE_FS.
*/
- if (current != root->fs_info->transaction_kthread &&
- current != root->fs_info->cleaner_kthread &&
- !root->fs_info->fs_frozen)
+ if (current != fs_info->transaction_kthread &&
+ current != fs_info->cleaner_kthread && !fs_info->fs_frozen)
btrfs_run_delayed_iputs(root);
return ret;
@@ -2290,7 +2309,7 @@ int btrfs_commit_transaction(struct btrfs_trans_handle *trans,
btrfs_trans_release_metadata(trans, root);
btrfs_trans_release_chunk_metadata(trans);
trans->block_rsv = NULL;
- btrfs_warn(root->fs_info, "Skipping commit of aborted transaction.");
+ btrfs_warn(fs_info, "Skipping commit of aborted transaction.");
if (current->journal_info == trans)
current->journal_info = NULL;
cleanup_transaction(trans, root, ret);
diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c
index ad3ae2e..dcb225e 100644
--- a/fs/btrfs/tree-log.c
+++ b/fs/btrfs/tree-log.c
@@ -142,12 +142,13 @@ static int start_log_trans(struct btrfs_trans_handle *trans,
struct btrfs_root *root,
struct btrfs_log_ctx *ctx)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
int ret = 0;
mutex_lock(&root->log_mutex);
if (root->log_root) {
- if (btrfs_need_log_full_commit(root->fs_info, trans)) {
+ if (btrfs_need_log_full_commit(fs_info, trans)) {
ret = -EAGAIN;
goto out;
}
@@ -159,10 +160,10 @@ static int start_log_trans(struct btrfs_trans_handle *trans,
set_bit(BTRFS_ROOT_MULTI_LOG_TASKS, &root->state);
}
} else {
- mutex_lock(&root->fs_info->tree_log_mutex);
- if (!root->fs_info->log_root_tree)
- ret = btrfs_init_log_root_tree(trans, root->fs_info);
- mutex_unlock(&root->fs_info->tree_log_mutex);
+ mutex_lock(&fs_info->tree_log_mutex);
+ if (!fs_info->log_root_tree)
+ ret = btrfs_init_log_root_tree(trans, fs_info);
+ mutex_unlock(&fs_info->tree_log_mutex);
if (ret)
goto out;
@@ -292,20 +293,21 @@ static int process_one_buffer(struct btrfs_root *log,
struct extent_buffer *eb,
struct walk_control *wc, u64 gen)
{
+ struct btrfs_fs_info *fs_info = log->fs_info;
int ret = 0;
/*
* If this fs is mixed then we need to be able to process the leaves to
* pin down any logged extents, so we have to read the block.
*/
- if (btrfs_fs_incompat(log->fs_info, MIXED_GROUPS)) {
+ if (btrfs_fs_incompat(fs_info, MIXED_GROUPS)) {
ret = btrfs_read_buffer(eb, gen);
if (ret)
return ret;
}
if (wc->pin)
- ret = btrfs_pin_extent_for_log_replay(log->fs_info->extent_root,
+ ret = btrfs_pin_extent_for_log_replay(fs_info->extent_root,
eb->start, eb->len);
if (!ret && btrfs_buffer_uptodate(eb, gen, 0)) {
@@ -582,6 +584,7 @@ static noinline int replay_one_extent(struct btrfs_trans_handle *trans,
struct extent_buffer *eb, int slot,
struct btrfs_key *key)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
int found_type;
u64 extent_end;
u64 start = key->offset;
@@ -609,7 +612,7 @@ static noinline int replay_one_extent(struct btrfs_trans_handle *trans,
size = btrfs_file_extent_inline_len(eb, slot, item);
nbytes = btrfs_file_extent_ram_bytes(eb, item);
extent_end = ALIGN(start + size,
- root->fs_info->sectorsize);
+ fs_info->sectorsize);
} else {
ret = 0;
goto out;
@@ -690,7 +693,7 @@ static noinline int replay_one_extent(struct btrfs_trans_handle *trans,
* as the owner of the file extent changed from log tree
* (doesn't affect qgroup) to fs/file tree(affects qgroup)
*/
- ret = btrfs_qgroup_trace_extent(trans, root->fs_info,
+ ret = btrfs_qgroup_trace_extent(trans, fs_info,
btrfs_file_extent_disk_bytenr(eb, item),
btrfs_file_extent_disk_num_bytes(eb, item),
GFP_NOFS);
@@ -797,14 +800,12 @@ static noinline int replay_one_extent(struct btrfs_trans_handle *trans,
struct btrfs_ordered_sum,
list);
if (!ret)
- ret = btrfs_del_csums(trans,
- root->fs_info,
+ ret = btrfs_del_csums(trans, fs_info,
sums->bytenr,
sums->len);
if (!ret)
ret = btrfs_csum_file_blocks(trans,
- root->fs_info->csum_root,
- sums);
+ fs_info->csum_root, sums);
list_del(&sums->list);
kfree(sums);
}
@@ -2408,6 +2409,7 @@ static noinline int walk_down_log_tree(struct btrfs_trans_handle *trans,
struct btrfs_path *path, int *level,
struct walk_control *wc)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
u64 root_owner;
u64 bytenr;
u64 ptr_gen;
@@ -2433,7 +2435,7 @@ static noinline int walk_down_log_tree(struct btrfs_trans_handle *trans,
bytenr = btrfs_node_blockptr(cur, path->slots[*level]);
ptr_gen = btrfs_node_ptr_generation(cur, path->slots[*level]);
- blocksize = root->fs_info->nodesize;
+ blocksize = fs_info->nodesize;
parent = path->nodes[*level];
root_owner = btrfs_header_owner(parent);
@@ -2460,8 +2462,7 @@ static noinline int walk_down_log_tree(struct btrfs_trans_handle *trans,
if (trans) {
btrfs_tree_lock(next);
btrfs_set_lock_blocking(next);
- clean_tree_block(trans, root->fs_info,
- next);
+ clean_tree_block(trans, fs_info, next);
btrfs_wait_tree_block_writeback(next);
btrfs_tree_unlock(next);
}
@@ -2506,6 +2507,7 @@ static noinline int walk_up_log_tree(struct btrfs_trans_handle *trans,
struct btrfs_path *path, int *level,
struct walk_control *wc)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
u64 root_owner;
int i;
int slot;
@@ -2539,8 +2541,7 @@ static noinline int walk_up_log_tree(struct btrfs_trans_handle *trans,
if (trans) {
btrfs_tree_lock(next);
btrfs_set_lock_blocking(next);
- clean_tree_block(trans, root->fs_info,
- next);
+ clean_tree_block(trans, fs_info, next);
btrfs_wait_tree_block_writeback(next);
btrfs_tree_unlock(next);
}
@@ -2642,14 +2643,15 @@ static int walk_log_tree(struct btrfs_trans_handle *trans,
static int update_log_root(struct btrfs_trans_handle *trans,
struct btrfs_root *log)
{
+ struct btrfs_fs_info *fs_info = log->fs_info;
int ret;
if (log->log_transid == 1) {
/* insert root item on the first sync */
- ret = btrfs_insert_root(trans, log->fs_info->log_root_tree,
+ ret = btrfs_insert_root(trans, fs_info->log_root_tree,
&log->root_key, &log->root_item);
} else {
- ret = btrfs_update_root(trans, log->fs_info->log_root_tree,
+ ret = btrfs_update_root(trans, fs_info->log_root_tree,
&log->root_key, &log->root_item);
}
return ret;
@@ -2743,8 +2745,9 @@ int btrfs_sync_log(struct btrfs_trans_handle *trans,
int index2;
int mark;
int ret;
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_root *log = root->log_root;
- struct btrfs_root *log_root_tree = root->fs_info->log_root_tree;
+ struct btrfs_root *log_root_tree = fs_info->log_root_tree;
int log_transid = 0;
struct btrfs_log_ctx root_log_ctx;
struct blk_plug plug;
@@ -2772,7 +2775,7 @@ int btrfs_sync_log(struct btrfs_trans_handle *trans,
while (1) {
int batch = atomic_read(&root->log_batch);
/* when we're on an ssd, just kick the log commit out */
- if (!btrfs_test_opt(root->fs_info, SSD) &&
+ if (!btrfs_test_opt(fs_info, SSD) &&
test_bit(BTRFS_ROOT_MULTI_LOG_TASKS, &root->state)) {
mutex_unlock(&root->log_mutex);
schedule_timeout_uninterruptible(1);
@@ -2784,7 +2787,7 @@ int btrfs_sync_log(struct btrfs_trans_handle *trans,
}
/* bail out if we need to do a full commit */
- if (btrfs_need_log_full_commit(root->fs_info, trans)) {
+ if (btrfs_need_log_full_commit(fs_info, trans)) {
ret = -EAGAIN;
btrfs_free_logged_extents(log, log_transid);
mutex_unlock(&root->log_mutex);
@@ -2805,7 +2808,7 @@ int btrfs_sync_log(struct btrfs_trans_handle *trans,
blk_finish_plug(&plug);
btrfs_abort_transaction(trans, ret);
btrfs_free_logged_extents(log, log_transid);
- btrfs_set_log_full_commit(root->fs_info, trans);
+ btrfs_set_log_full_commit(fs_info, trans);
mutex_unlock(&root->log_mutex);
goto out;
}
@@ -2850,7 +2853,7 @@ int btrfs_sync_log(struct btrfs_trans_handle *trans,
list_del_init(&root_log_ctx.list);
blk_finish_plug(&plug);
- btrfs_set_log_full_commit(root->fs_info, trans);
+ btrfs_set_log_full_commit(fs_info, trans);
if (ret != -ENOSPC) {
btrfs_abort_transaction(trans, ret);
@@ -2899,7 +2902,7 @@ int btrfs_sync_log(struct btrfs_trans_handle *trans,
* now that we've moved on to the tree of log tree roots,
* check the full commit flag again
*/
- if (btrfs_need_log_full_commit(root->fs_info, trans)) {
+ if (btrfs_need_log_full_commit(fs_info, trans)) {
blk_finish_plug(&plug);
btrfs_wait_marked_extents(log, &log->dirty_log_pages, mark);
btrfs_free_logged_extents(log, log_transid);
@@ -2913,7 +2916,7 @@ int btrfs_sync_log(struct btrfs_trans_handle *trans,
EXTENT_DIRTY | EXTENT_NEW);
blk_finish_plug(&plug);
if (ret) {
- btrfs_set_log_full_commit(root->fs_info, trans);
+ btrfs_set_log_full_commit(fs_info, trans);
btrfs_abort_transaction(trans, ret);
btrfs_free_logged_extents(log, log_transid);
mutex_unlock(&log_root_tree->log_mutex);
@@ -2925,17 +2928,17 @@ int btrfs_sync_log(struct btrfs_trans_handle *trans,
&log_root_tree->dirty_log_pages,
EXTENT_NEW | EXTENT_DIRTY);
if (ret) {
- btrfs_set_log_full_commit(root->fs_info, trans);
+ btrfs_set_log_full_commit(fs_info, trans);
btrfs_free_logged_extents(log, log_transid);
mutex_unlock(&log_root_tree->log_mutex);
goto out_wake_log_root;
}
btrfs_wait_logged_extents(trans, log, log_transid);
- btrfs_set_super_log_root(root->fs_info->super_for_commit,
- log_root_tree->node->start);
- btrfs_set_super_log_root_level(root->fs_info->super_for_commit,
- btrfs_header_level(log_root_tree->node));
+ btrfs_set_super_log_root(fs_info->super_for_commit,
+ log_root_tree->node->start);
+ btrfs_set_super_log_root_level(fs_info->super_for_commit,
+ btrfs_header_level(log_root_tree->node));
log_root_tree->log_transid++;
mutex_unlock(&log_root_tree->log_mutex);
@@ -2947,9 +2950,9 @@ int btrfs_sync_log(struct btrfs_trans_handle *trans,
* the running transaction open, so a full commit can't hop
* in and cause problems either.
*/
- ret = write_ctree_super(trans, root->fs_info->tree_root, 1);
+ ret = write_ctree_super(trans, fs_info->tree_root, 1);
if (ret) {
- btrfs_set_log_full_commit(root->fs_info, trans);
+ btrfs_set_log_full_commit(fs_info, trans);
btrfs_abort_transaction(trans, ret);
goto out_wake_log_root;
}
@@ -3183,6 +3186,7 @@ int btrfs_del_inode_ref_in_log(struct btrfs_trans_handle *trans,
const char *name, int name_len,
struct inode *inode, u64 dirid)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_root *log;
u64 index;
int ret;
@@ -3200,7 +3204,7 @@ int btrfs_del_inode_ref_in_log(struct btrfs_trans_handle *trans,
dirid, &index);
mutex_unlock(&BTRFS_I(inode)->log_mutex);
if (ret == -ENOSPC) {
- btrfs_set_log_full_commit(root->fs_info, trans);
+ btrfs_set_log_full_commit(fs_info, trans);
ret = 0;
} else if (ret < 0 && ret != -ENOENT)
btrfs_abort_transaction(trans, ret);
@@ -3607,6 +3611,7 @@ static noinline int copy_items(struct btrfs_trans_handle *trans,
int start_slot, int nr, int inode_only,
u64 logged_isize)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
unsigned long src_offset;
unsigned long dst_offset;
struct btrfs_root *log = BTRFS_I(inode)->root->log_root;
@@ -3717,7 +3722,7 @@ static noinline int copy_items(struct btrfs_trans_handle *trans,
}
ret = btrfs_lookup_csums_range(
- log->fs_info->csum_root,
+ fs_info->csum_root,
ds + cs, ds + cs + cl - 1,
&ordered_sums, 0);
if (ret) {
@@ -3790,7 +3795,7 @@ static noinline int copy_items(struct btrfs_trans_handle *trans,
src_path->slots[0],
extent);
*last_extent = ALIGN(key.offset + len,
- log->fs_info->sectorsize);
+ fs_info->sectorsize);
} else {
len = btrfs_file_extent_num_bytes(src, extent);
*last_extent = key.offset + len;
@@ -3854,7 +3859,7 @@ static noinline int copy_items(struct btrfs_trans_handle *trans,
BTRFS_FILE_EXTENT_INLINE) {
len = btrfs_file_extent_inline_len(src, i, extent);
extent_end = ALIGN(key.offset + len,
- log->fs_info->sectorsize);
+ fs_info->sectorsize);
} else {
len = btrfs_file_extent_num_bytes(src, extent);
extent_end = key.offset + len;
@@ -3904,6 +3909,7 @@ static int wait_ordered_extents(struct btrfs_trans_handle *trans,
const struct list_head *logged_list,
bool *ordered_io_error)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_ordered_extent *ordered;
struct btrfs_root *log = root->log_root;
u64 mod_start = em->mod_start;
@@ -4020,7 +4026,7 @@ static int wait_ordered_extents(struct btrfs_trans_handle *trans,
}
/* block start is already adjusted for the file extent offset. */
- ret = btrfs_lookup_csums_range(log->fs_info->csum_root,
+ ret = btrfs_lookup_csums_range(fs_info->csum_root,
em->block_start + csum_offset,
em->block_start + csum_offset +
csum_len - 1, &ordered_sums, 0);
@@ -4363,6 +4369,7 @@ static int btrfs_log_trailing_hole(struct btrfs_trans_handle *trans,
struct inode *inode,
struct btrfs_path *path)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
int ret;
struct btrfs_key key;
u64 hole_start;
@@ -4372,7 +4379,7 @@ static int btrfs_log_trailing_hole(struct btrfs_trans_handle *trans,
const u64 ino = btrfs_ino(inode);
const u64 i_size = i_size_read(inode);
- if (!btrfs_fs_incompat(root->fs_info, NO_HOLES))
+ if (!btrfs_fs_incompat(fs_info, NO_HOLES))
return 0;
key.objectid = ino;
@@ -4429,7 +4436,7 @@ static int btrfs_log_trailing_hole(struct btrfs_trans_handle *trans,
if (hole_size == 0)
return 0;
- hole_size = ALIGN(hole_size, root->fs_info->sectorsize);
+ hole_size = ALIGN(hole_size, fs_info->sectorsize);
ret = btrfs_insert_file_extent(trans, log, ino, hole_start, 0, 0,
hole_size, 0, hole_size, 0, 0, 0);
return ret;
@@ -4587,6 +4594,7 @@ static int btrfs_log_inode(struct btrfs_trans_handle *trans,
const loff_t end,
struct btrfs_log_ctx *ctx)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_path *path;
struct btrfs_path *dst_path;
struct btrfs_key min_key;
@@ -4639,7 +4647,7 @@ static int btrfs_log_inode(struct btrfs_trans_handle *trans,
* fixup (create temporary BTRFS_TREE_LOG_FIXUP_OBJECTID items).
*/
if (S_ISDIR(inode->i_mode) ||
- BTRFS_I(inode)->generation > root->fs_info->last_trans_committed)
+ BTRFS_I(inode)->generation > fs_info->last_trans_committed)
ret = btrfs_commit_inode_delayed_items(trans, inode);
else
ret = btrfs_commit_inode_delayed_inode(inode);
@@ -4776,7 +4784,7 @@ static int btrfs_log_inode(struct btrfs_trans_handle *trans,
inode_key.objectid = other_ino;
inode_key.type = BTRFS_INODE_ITEM_KEY;
inode_key.offset = 0;
- other_inode = btrfs_iget(root->fs_info->sb,
+ other_inode = btrfs_iget(fs_info->sb,
&inode_key, root,
NULL);
/*
@@ -5140,6 +5148,7 @@ static int log_new_dir_dentries(struct btrfs_trans_handle *trans,
struct inode *start_inode,
struct btrfs_log_ctx *ctx)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_root *log = root->log_root;
struct btrfs_path *path;
LIST_HEAD(dir_list);
@@ -5207,8 +5216,7 @@ static int log_new_dir_dentries(struct btrfs_trans_handle *trans,
if (di_key.type == BTRFS_ROOT_ITEM_KEY)
continue;
- di_inode = btrfs_iget(root->fs_info->sb, &di_key,
- root, NULL);
+ di_inode = btrfs_iget(fs_info->sb, &di_key, root, NULL);
if (IS_ERR(di_inode)) {
ret = PTR_ERR(di_inode);
goto next_dir_inode;
@@ -5270,6 +5278,7 @@ static int btrfs_log_all_parents(struct btrfs_trans_handle *trans,
struct inode *inode,
struct btrfs_log_ctx *ctx)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
int ret;
struct btrfs_path *path;
struct btrfs_key key;
@@ -5334,7 +5343,7 @@ static int btrfs_log_all_parents(struct btrfs_trans_handle *trans,
cur_offset = item_size;
}
- dir_inode = btrfs_iget(root->fs_info->sb, &inode_key,
+ dir_inode = btrfs_iget(fs_info->sb, &inode_key,
root, NULL);
/* If parent inode was deleted, skip it. */
if (IS_ERR(dir_inode))
@@ -5376,17 +5385,18 @@ static int btrfs_log_inode_parent(struct btrfs_trans_handle *trans,
int exists_only,
struct btrfs_log_ctx *ctx)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
int inode_only = exists_only ? LOG_INODE_EXISTS : LOG_INODE_ALL;
struct super_block *sb;
struct dentry *old_parent = NULL;
int ret = 0;
- u64 last_committed = root->fs_info->last_trans_committed;
+ u64 last_committed = fs_info->last_trans_committed;
bool log_dentries = false;
struct inode *orig_inode = inode;
sb = inode->i_sb;
- if (btrfs_test_opt(root->fs_info, NOTREELOG)) {
+ if (btrfs_test_opt(fs_info, NOTREELOG)) {
ret = 1;
goto end_no_trans;
}
@@ -5395,8 +5405,8 @@ static int btrfs_log_inode_parent(struct btrfs_trans_handle *trans,
* The prev transaction commit doesn't complete, we need do
* full commit by ourselves.
*/
- if (root->fs_info->last_trans_log_full_commit >
- root->fs_info->last_trans_committed) {
+ if (fs_info->last_trans_log_full_commit >
+ fs_info->last_trans_committed) {
ret = 1;
goto end_no_trans;
}
@@ -5517,7 +5527,7 @@ static int btrfs_log_inode_parent(struct btrfs_trans_handle *trans,
end_trans:
dput(old_parent);
if (ret < 0) {
- btrfs_set_log_full_commit(root->fs_info, trans);
+ btrfs_set_log_full_commit(fs_info, trans);
ret = 1;
}
@@ -5788,6 +5798,7 @@ int btrfs_log_new_name(struct btrfs_trans_handle *trans,
struct inode *inode, struct inode *old_dir,
struct dentry *parent)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_root * root = BTRFS_I(inode)->root;
/*
@@ -5802,9 +5813,9 @@ int btrfs_log_new_name(struct btrfs_trans_handle *trans,
* from hasn't been logged, we don't need to log it
*/
if (BTRFS_I(inode)->logged_trans <=
- root->fs_info->last_trans_committed &&
+ fs_info->last_trans_committed &&
(!old_dir || BTRFS_I(old_dir)->logged_trans <=
- root->fs_info->last_trans_committed))
+ fs_info->last_trans_committed))
return 0;
return btrfs_log_inode_parent(trans, root, inode, parent, 0,
diff --git a/fs/btrfs/uuid-tree.c b/fs/btrfs/uuid-tree.c
index e63846e..4464e80 100644
--- a/fs/btrfs/uuid-tree.c
+++ b/fs/btrfs/uuid-tree.c
@@ -187,8 +187,8 @@ int btrfs_uuid_tree_rem(struct btrfs_trans_handle *trans,
ret = btrfs_search_slot(trans, uuid_root, &key, path, -1, 1);
if (ret < 0) {
- btrfs_warn(uuid_root->fs_info,
- "error %d while searching for uuid item!", ret);
+ btrfs_warn(fs_info, "error %d while searching for uuid item!",
+ ret);
goto out;
}
if (ret > 0) {
@@ -201,8 +201,7 @@ int btrfs_uuid_tree_rem(struct btrfs_trans_handle *trans,
offset = btrfs_item_ptr_offset(eb, slot);
item_size = btrfs_item_size_nr(eb, slot);
if (!IS_ALIGNED(item_size, sizeof(u64))) {
- btrfs_warn(uuid_root->fs_info,
- "uuid item with illegal size %lu!",
+ btrfs_warn(fs_info, "uuid item with illegal size %lu!",
(unsigned long)item_size);
ret = -ENOENT;
goto out;
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index 9535828..f983d25 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -343,9 +343,9 @@ static void requeue_list(struct btrfs_pending_bios *pending_bios,
*/
static noinline void run_scheduled_bios(struct btrfs_device *device)
{
+ struct btrfs_fs_info *fs_info = device->fs_info;
struct bio *pending;
struct backing_dev_info *bdi;
- struct btrfs_fs_info *fs_info;
struct btrfs_pending_bios *pending_bios;
struct bio *tail;
struct bio *cur;
@@ -367,7 +367,6 @@ static noinline void run_scheduled_bios(struct btrfs_device *device)
blk_start_plug(&plug);
bdi = blk_get_backing_dev_info(device->bdev);
- fs_info = device->fs_info;
limit = btrfs_async_submit_limit(fs_info);
limit = limit * 2 / 3;
@@ -1338,7 +1337,8 @@ int find_free_dev_extent_start(struct btrfs_transaction *transaction,
struct btrfs_device *device, u64 num_bytes,
u64 search_start, u64 *start, u64 *len)
{
- struct btrfs_root *root = device->fs_info->dev_root;
+ struct btrfs_fs_info *fs_info = device->fs_info;
+ struct btrfs_root *root = fs_info->dev_root;
struct btrfs_key key;
struct btrfs_dev_extent *dev_extent;
struct btrfs_path *path;
@@ -1357,7 +1357,7 @@ int find_free_dev_extent_start(struct btrfs_transaction *transaction,
* used by the boot loader (grub for example), so we make sure to start
* at an offset of at least 1MB.
*/
- min_search_start = max(root->fs_info->alloc_start, 1024ull * 1024);
+ min_search_start = max(fs_info->alloc_start, 1024ull * 1024);
search_start = max(search_start, min_search_start);
path = btrfs_alloc_path();
@@ -1508,7 +1508,8 @@ static int btrfs_free_dev_extent(struct btrfs_trans_handle *trans,
struct btrfs_device *device,
u64 start, u64 *dev_extent_len)
{
- struct btrfs_root *root = device->fs_info->dev_root;
+ struct btrfs_fs_info *fs_info = device->fs_info;
+ struct btrfs_root *root = fs_info->dev_root;
int ret;
struct btrfs_path *path;
struct btrfs_key key;
@@ -1544,7 +1545,7 @@ static int btrfs_free_dev_extent(struct btrfs_trans_handle *trans,
extent = btrfs_item_ptr(leaf, path->slots[0],
struct btrfs_dev_extent);
} else {
- btrfs_handle_fs_error(root->fs_info, ret, "Slot search failed");
+ btrfs_handle_fs_error(fs_info, ret, "Slot search failed");
goto out;
}
@@ -1552,8 +1553,8 @@ static int btrfs_free_dev_extent(struct btrfs_trans_handle *trans,
ret = btrfs_del_item(trans, root, path);
if (ret) {
- btrfs_handle_fs_error(root->fs_info, ret,
- "Failed to remove dev extent item");
+ btrfs_handle_fs_error(fs_info, ret,
+ "Failed to remove dev extent item");
} else {
set_bit(BTRFS_TRANS_HAVE_FREE_BGS, &trans->transaction->flags);
}
@@ -1569,7 +1570,8 @@ static int btrfs_alloc_dev_extent(struct btrfs_trans_handle *trans,
{
int ret;
struct btrfs_path *path;
- struct btrfs_root *root = device->fs_info->dev_root;
+ struct btrfs_fs_info *fs_info = device->fs_info;
+ struct btrfs_root *root = fs_info->dev_root;
struct btrfs_dev_extent *extent;
struct extent_buffer *leaf;
struct btrfs_key key;
@@ -1595,8 +1597,7 @@ static int btrfs_alloc_dev_extent(struct btrfs_trans_handle *trans,
btrfs_set_dev_extent_chunk_objectid(leaf, extent, chunk_objectid);
btrfs_set_dev_extent_chunk_offset(leaf, extent, chunk_offset);
- write_extent_buffer_chunk_tree_uuid(leaf,
- root->fs_info->chunk_tree_uuid);
+ write_extent_buffer_chunk_tree_uuid(leaf, fs_info->chunk_tree_uuid);
btrfs_set_dev_extent_length(leaf, extent, num_bytes);
btrfs_mark_buffer_dirty(leaf);
@@ -1712,7 +1713,7 @@ static int btrfs_add_device(struct btrfs_trans_handle *trans,
ptr = btrfs_device_uuid(dev_item);
write_extent_buffer(leaf, device->uuid, ptr, BTRFS_UUID_SIZE);
ptr = btrfs_device_fsid(dev_item);
- write_extent_buffer(leaf, root->fs_info->fsid, ptr, BTRFS_UUID_SIZE);
+ write_extent_buffer(leaf, fs_info->fsid, ptr, BTRFS_UUID_SIZE);
btrfs_mark_buffer_dirty(leaf);
ret = 0;
@@ -1853,6 +1854,7 @@ void btrfs_assign_next_active_device(struct btrfs_fs_info *fs_info,
int btrfs_rm_device(struct btrfs_root *root, char *device_path, u64 devid)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_device *device;
struct btrfs_fs_devices *cur_devices;
u64 num_devices;
@@ -1861,15 +1863,15 @@ int btrfs_rm_device(struct btrfs_root *root, char *device_path, u64 devid)
mutex_lock(&uuid_mutex);
- num_devices = root->fs_info->fs_devices->num_devices;
- btrfs_dev_replace_lock(&root->fs_info->dev_replace, 0);
- if (btrfs_dev_replace_is_ongoing(&root->fs_info->dev_replace)) {
+ num_devices = fs_info->fs_devices->num_devices;
+ btrfs_dev_replace_lock(&fs_info->dev_replace, 0);
+ if (btrfs_dev_replace_is_ongoing(&fs_info->dev_replace)) {
WARN_ON(num_devices < 1);
num_devices--;
}
- btrfs_dev_replace_unlock(&root->fs_info->dev_replace, 0);
+ btrfs_dev_replace_unlock(&fs_info->dev_replace, 0);
- ret = btrfs_check_raid_min_devices(root->fs_info, num_devices - 1);
+ ret = btrfs_check_raid_min_devices(fs_info, num_devices - 1);
if (ret)
goto out;
@@ -1883,16 +1885,16 @@ int btrfs_rm_device(struct btrfs_root *root, char *device_path, u64 devid)
goto out;
}
- if (device->writeable && root->fs_info->fs_devices->rw_devices == 1) {
+ if (device->writeable && fs_info->fs_devices->rw_devices == 1) {
ret = BTRFS_ERROR_DEV_ONLY_WRITABLE;
goto out;
}
if (device->writeable) {
- lock_chunks(root->fs_info);
+ lock_chunks(fs_info);
list_del_init(&device->dev_alloc_list);
device->fs_devices->rw_devices--;
- unlock_chunks(root->fs_info);
+ unlock_chunks(fs_info);
clear_super = true;
}
@@ -1907,12 +1909,12 @@ int btrfs_rm_device(struct btrfs_root *root, char *device_path, u64 devid)
* counter although write_all_supers() is not locked out. This
* could give a filesystem state which requires a degraded mount.
*/
- ret = btrfs_rm_dev_item(root->fs_info, device);
+ ret = btrfs_rm_dev_item(fs_info, device);
if (ret)
goto error_undo;
device->in_fs_metadata = 0;
- btrfs_scrub_cancel_dev(root->fs_info, device);
+ btrfs_scrub_cancel_dev(fs_info, device);
/*
* the device list mutex makes sure that we don't change
@@ -1925,7 +1927,7 @@ int btrfs_rm_device(struct btrfs_root *root, char *device_path, u64 devid)
*/
cur_devices = device->fs_devices;
- mutex_lock(&root->fs_info->fs_devices->device_list_mutex);
+ mutex_lock(&fs_info->fs_devices->device_list_mutex);
list_del_rcu(&device->dev_list);
device->fs_devices->num_devices--;
@@ -1934,17 +1936,17 @@ int btrfs_rm_device(struct btrfs_root *root, char *device_path, u64 devid)
if (device->missing)
device->fs_devices->missing_devices--;
- btrfs_assign_next_active_device(root->fs_info, device, NULL);
+ btrfs_assign_next_active_device(fs_info, device, NULL);
if (device->bdev) {
device->fs_devices->open_devices--;
/* remove sysfs entry */
- btrfs_sysfs_rm_device_link(root->fs_info->fs_devices, device);
+ btrfs_sysfs_rm_device_link(fs_info->fs_devices, device);
}
- num_devices = btrfs_super_num_devices(root->fs_info->super_copy) - 1;
- btrfs_set_super_num_devices(root->fs_info->super_copy, num_devices);
- mutex_unlock(&root->fs_info->fs_devices->device_list_mutex);
+ num_devices = btrfs_super_num_devices(fs_info->super_copy) - 1;
+ btrfs_set_super_num_devices(fs_info->super_copy, num_devices);
+ mutex_unlock(&fs_info->fs_devices->device_list_mutex);
/*
* at this point, the device is zero sized and detached from
@@ -1959,7 +1961,7 @@ int btrfs_rm_device(struct btrfs_root *root, char *device_path, u64 devid)
if (cur_devices->open_devices == 0) {
struct btrfs_fs_devices *fs_devices;
- fs_devices = root->fs_info->fs_devices;
+ fs_devices = fs_info->fs_devices;
while (fs_devices) {
if (fs_devices->seed == cur_devices) {
fs_devices->seed = cur_devices->seed;
@@ -1972,8 +1974,8 @@ int btrfs_rm_device(struct btrfs_root *root, char *device_path, u64 devid)
free_fs_devices(cur_devices);
}
- root->fs_info->num_tolerated_disk_barrier_failures =
- btrfs_calc_num_tolerated_disk_barrier_failures(root->fs_info);
+ fs_info->num_tolerated_disk_barrier_failures =
+ btrfs_calc_num_tolerated_disk_barrier_failures(fs_info);
out:
mutex_unlock(&uuid_mutex);
@@ -1981,11 +1983,11 @@ int btrfs_rm_device(struct btrfs_root *root, char *device_path, u64 devid)
error_undo:
if (device->writeable) {
- lock_chunks(root->fs_info);
+ lock_chunks(fs_info);
list_add(&device->dev_alloc_list,
- &root->fs_info->fs_devices->alloc_list);
+ &fs_info->fs_devices->alloc_list);
device->fs_devices->rw_devices++;
- unlock_chunks(root->fs_info);
+ unlock_chunks(fs_info);
}
goto out;
}
@@ -2093,6 +2095,7 @@ void btrfs_destroy_dev_replace_tgtdev(struct btrfs_fs_info *fs_info,
static int btrfs_find_device_by_path(struct btrfs_root *root, char *device_path,
struct btrfs_device **device)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
int ret = 0;
struct btrfs_super_block *disk_super;
u64 devid;
@@ -2102,14 +2105,13 @@ static int btrfs_find_device_by_path(struct btrfs_root *root, char *device_path,
*device = NULL;
ret = btrfs_get_bdev_and_sb(device_path, FMODE_READ,
- root->fs_info->bdev_holder, 0, &bdev, &bh);
+ fs_info->bdev_holder, 0, &bdev, &bh);
if (ret)
return ret;
disk_super = (struct btrfs_super_block *)bh->b_data;
devid = btrfs_stack_device_id(&disk_super->dev_item);
dev_uuid = disk_super->dev_item.uuid;
- *device = btrfs_find_device(root->fs_info, devid, dev_uuid,
- disk_super->fsid);
+ *device = btrfs_find_device(fs_info, devid, dev_uuid, disk_super->fsid);
brelse(bh);
if (!*device)
ret = -ENOENT;
@@ -2121,12 +2123,14 @@ int btrfs_find_device_missing_or_by_path(struct btrfs_root *root,
char *device_path,
struct btrfs_device **device)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
+
*device = NULL;
if (strcmp(device_path, "missing") == 0) {
struct list_head *devices;
struct btrfs_device *tmp;
- devices = &root->fs_info->fs_devices->devices;
+ devices = &fs_info->fs_devices->devices;
/*
* It is safe to read the devices since the volume_mutex
* is held by the caller.
@@ -2154,12 +2158,12 @@ int btrfs_find_device_by_devspec(struct btrfs_root *root, u64 devid,
char *devpath,
struct btrfs_device **device)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
int ret;
if (devid) {
ret = 0;
- *device = btrfs_find_device(root->fs_info, devid, NULL,
- NULL);
+ *device = btrfs_find_device(fs_info, devid, NULL, NULL);
if (!*device)
ret = -ENOENT;
} else {
@@ -2177,10 +2181,11 @@ int btrfs_find_device_by_devspec(struct btrfs_root *root, u64 devid,
*/
static int btrfs_prepare_sprout(struct btrfs_root *root)
{
- struct btrfs_fs_devices *fs_devices = root->fs_info->fs_devices;
+ struct btrfs_fs_info *fs_info = root->fs_info;
+ struct btrfs_fs_devices *fs_devices = fs_info->fs_devices;
struct btrfs_fs_devices *old_devices;
struct btrfs_fs_devices *seed_devices;
- struct btrfs_super_block *disk_super = root->fs_info->super_copy;
+ struct btrfs_super_block *disk_super = fs_info->super_copy;
struct btrfs_device *device;
u64 super_flags;
@@ -2206,15 +2211,15 @@ static int btrfs_prepare_sprout(struct btrfs_root *root)
INIT_LIST_HEAD(&seed_devices->alloc_list);
mutex_init(&seed_devices->device_list_mutex);
- mutex_lock(&root->fs_info->fs_devices->device_list_mutex);
+ mutex_lock(&fs_info->fs_devices->device_list_mutex);
list_splice_init_rcu(&fs_devices->devices, &seed_devices->devices,
synchronize_rcu);
list_for_each_entry(device, &seed_devices->devices, dev_list)
device->fs_devices = seed_devices;
- lock_chunks(root->fs_info);
+ lock_chunks(fs_info);
list_splice_init(&fs_devices->alloc_list, &seed_devices->alloc_list);
- unlock_chunks(root->fs_info);
+ unlock_chunks(fs_info);
fs_devices->seeding = 0;
fs_devices->num_devices = 0;
@@ -2224,9 +2229,9 @@ static int btrfs_prepare_sprout(struct btrfs_root *root)
fs_devices->seed = seed_devices;
generate_random_uuid(fs_devices->fsid);
- memcpy(root->fs_info->fsid, fs_devices->fsid, BTRFS_FSID_SIZE);
+ memcpy(fs_info->fsid, fs_devices->fsid, BTRFS_FSID_SIZE);
memcpy(disk_super->fsid, fs_devices->fsid, BTRFS_FSID_SIZE);
- mutex_unlock(&root->fs_info->fs_devices->device_list_mutex);
+ mutex_unlock(&fs_info->fs_devices->device_list_mutex);
super_flags = btrfs_super_flags(disk_super) &
~BTRFS_SUPER_FLAG_SEEDING;
@@ -2291,8 +2296,7 @@ static int btrfs_finish_sprout(struct btrfs_trans_handle *trans,
BTRFS_UUID_SIZE);
read_extent_buffer(leaf, fs_uuid, btrfs_device_fsid(dev_item),
BTRFS_UUID_SIZE);
- device = btrfs_find_device(root->fs_info, devid, dev_uuid,
- fs_uuid);
+ device = btrfs_find_device(fs_info, devid, dev_uuid, fs_uuid);
BUG_ON(!device); /* Logic error */
if (device->fs_devices->seeding) {
@@ -2318,21 +2322,21 @@ int btrfs_init_new_device(struct btrfs_fs_info *fs_info, char *device_path)
struct btrfs_device *device;
struct block_device *bdev;
struct list_head *devices;
- struct super_block *sb = root->fs_info->sb;
+ struct super_block *sb = fs_info->sb;
struct rcu_string *name;
u64 tmp;
int seeding_dev = 0;
int ret = 0;
- if ((sb->s_flags & MS_RDONLY) && !root->fs_info->fs_devices->seeding)
+ if ((sb->s_flags & MS_RDONLY) && !fs_info->fs_devices->seeding)
return -EROFS;
bdev = blkdev_get_by_path(device_path, FMODE_WRITE | FMODE_EXCL,
- root->fs_info->bdev_holder);
+ fs_info->bdev_holder);
if (IS_ERR(bdev))
return PTR_ERR(bdev);
- if (root->fs_info->fs_devices->seeding) {
+ if (fs_info->fs_devices->seeding) {
seeding_dev = 1;
down_write(&sb->s_umount);
mutex_lock(&uuid_mutex);
@@ -2340,20 +2344,20 @@ int btrfs_init_new_device(struct btrfs_fs_info *fs_info, char *device_path)
filemap_write_and_wait(bdev->bd_inode->i_mapping);
- devices = &root->fs_info->fs_devices->devices;
+ devices = &fs_info->fs_devices->devices;
- mutex_lock(&root->fs_info->fs_devices->device_list_mutex);
+ mutex_lock(&fs_info->fs_devices->device_list_mutex);
list_for_each_entry(device, devices, dev_list) {
if (device->bdev == bdev) {
ret = -EEXIST;
mutex_unlock(
- &root->fs_info->fs_devices->device_list_mutex);
+ &fs_info->fs_devices->device_list_mutex);
goto error;
}
}
- mutex_unlock(&root->fs_info->fs_devices->device_list_mutex);
+ mutex_unlock(&fs_info->fs_devices->device_list_mutex);
- device = btrfs_alloc_device(root->fs_info, NULL, NULL);
+ device = btrfs_alloc_device(fs_info, NULL, NULL);
if (IS_ERR(device)) {
/* we can safely leave the fs_devices entry around */
ret = PTR_ERR(device);
@@ -2381,9 +2385,9 @@ int btrfs_init_new_device(struct btrfs_fs_info *fs_info, char *device_path)
device->can_discard = 1;
device->writeable = 1;
device->generation = trans->transid;
- device->io_width = root->fs_info->sectorsize;
- device->io_align = root->fs_info->sectorsize;
- device->sector_size = root->fs_info->sectorsize;
+ device->io_width = fs_info->sectorsize;
+ device->io_align = fs_info->sectorsize;
+ device->sector_size = fs_info->sectorsize;
device->total_bytes = i_size_read(bdev->bd_inode);
device->disk_total_bytes = device->total_bytes;
device->commit_total_bytes = device->total_bytes;
@@ -2401,57 +2405,56 @@ int btrfs_init_new_device(struct btrfs_fs_info *fs_info, char *device_path)
BUG_ON(ret); /* -ENOMEM */
}
- device->fs_devices = root->fs_info->fs_devices;
+ device->fs_devices = fs_info->fs_devices;
- mutex_lock(&root->fs_info->fs_devices->device_list_mutex);
- lock_chunks(root->fs_info);
- list_add_rcu(&device->dev_list, &root->fs_info->fs_devices->devices);
+ mutex_lock(&fs_info->fs_devices->device_list_mutex);
+ lock_chunks(fs_info);
+ list_add_rcu(&device->dev_list, &fs_info->fs_devices->devices);
list_add(&device->dev_alloc_list,
- &root->fs_info->fs_devices->alloc_list);
- root->fs_info->fs_devices->num_devices++;
- root->fs_info->fs_devices->open_devices++;
- root->fs_info->fs_devices->rw_devices++;
- root->fs_info->fs_devices->total_devices++;
- root->fs_info->fs_devices->total_rw_bytes += device->total_bytes;
+ &fs_info->fs_devices->alloc_list);
+ fs_info->fs_devices->num_devices++;
+ fs_info->fs_devices->open_devices++;
+ fs_info->fs_devices->rw_devices++;
+ fs_info->fs_devices->total_devices++;
+ fs_info->fs_devices->total_rw_bytes += device->total_bytes;
- spin_lock(&root->fs_info->free_chunk_lock);
- root->fs_info->free_chunk_space += device->total_bytes;
- spin_unlock(&root->fs_info->free_chunk_lock);
+ spin_lock(&fs_info->free_chunk_lock);
+ fs_info->free_chunk_space += device->total_bytes;
+ spin_unlock(&fs_info->free_chunk_lock);
if (!blk_queue_nonrot(bdev_get_queue(bdev)))
- root->fs_info->fs_devices->rotating = 1;
+ fs_info->fs_devices->rotating = 1;
- tmp = btrfs_super_total_bytes(root->fs_info->super_copy);
- btrfs_set_super_total_bytes(root->fs_info->super_copy,
+ tmp = btrfs_super_total_bytes(fs_info->super_copy);
+ btrfs_set_super_total_bytes(fs_info->super_copy,
tmp + device->total_bytes);
- tmp = btrfs_super_num_devices(root->fs_info->super_copy);
- btrfs_set_super_num_devices(root->fs_info->super_copy,
- tmp + 1);
+ tmp = btrfs_super_num_devices(fs_info->super_copy);
+ btrfs_set_super_num_devices(fs_info->super_copy, tmp + 1);
/* add sysfs device entry */
- btrfs_sysfs_add_device_link(root->fs_info->fs_devices, device);
+ btrfs_sysfs_add_device_link(fs_info->fs_devices, device);
/*
* we've got more storage, clear any full flags on the space
* infos
*/
- btrfs_clear_space_info_full(root->fs_info);
+ btrfs_clear_space_info_full(fs_info);
- unlock_chunks(root->fs_info);
- mutex_unlock(&root->fs_info->fs_devices->device_list_mutex);
+ unlock_chunks(fs_info);
+ mutex_unlock(&fs_info->fs_devices->device_list_mutex);
if (seeding_dev) {
- lock_chunks(root->fs_info);
+ lock_chunks(fs_info);
ret = init_first_rw_device(trans, root, device);
- unlock_chunks(root->fs_info);
+ unlock_chunks(fs_info);
if (ret) {
btrfs_abort_transaction(trans, ret);
goto error_trans;
}
}
- ret = btrfs_add_device(trans, root->fs_info, device);
+ ret = btrfs_add_device(trans, fs_info, device);
if (ret) {
btrfs_abort_transaction(trans, ret);
goto error_trans;
@@ -2460,7 +2463,7 @@ int btrfs_init_new_device(struct btrfs_fs_info *fs_info, char *device_path)
if (seeding_dev) {
char fsid_buf[BTRFS_UUID_UNPARSED_SIZE];
- ret = btrfs_finish_sprout(trans, root->fs_info);
+ ret = btrfs_finish_sprout(trans, fs_info);
if (ret) {
btrfs_abort_transaction(trans, ret);
goto error_trans;
@@ -2470,15 +2473,14 @@ int btrfs_init_new_device(struct btrfs_fs_info *fs_info, char *device_path)
* so rename the fsid on the sysfs
*/
snprintf(fsid_buf, BTRFS_UUID_UNPARSED_SIZE, "%pU",
- root->fs_info->fsid);
- if (kobject_rename(&root->fs_info->fs_devices->fsid_kobj,
- fsid_buf))
- btrfs_warn(root->fs_info,
- "sysfs: failed to create fsid for sprout");
+ fs_info->fsid);
+ if (kobject_rename(&fs_info->fs_devices->fsid_kobj, fsid_buf))
+ btrfs_warn(fs_info,
+ "sysfs: failed to create fsid for sprout");
}
- root->fs_info->num_tolerated_disk_barrier_failures =
- btrfs_calc_num_tolerated_disk_barrier_failures(root->fs_info);
+ fs_info->num_tolerated_disk_barrier_failures =
+ btrfs_calc_num_tolerated_disk_barrier_failures(fs_info);
ret = btrfs_commit_transaction(trans, root);
if (seeding_dev) {
@@ -2490,7 +2492,7 @@ int btrfs_init_new_device(struct btrfs_fs_info *fs_info, char *device_path)
ret = btrfs_relocate_sys_chunks(root);
if (ret < 0)
- btrfs_handle_fs_error(root->fs_info, ret,
+ btrfs_handle_fs_error(fs_info, ret,
"Failed to relocate sys chunks after device initialization. This can be fixed using the \"btrfs balance\" command.");
trans = btrfs_attach_transaction(root);
if (IS_ERR(trans)) {
@@ -2508,7 +2510,7 @@ int btrfs_init_new_device(struct btrfs_fs_info *fs_info, char *device_path)
error_trans:
btrfs_end_transaction(trans, root);
rcu_string_free(device->name);
- btrfs_sysfs_rm_device_link(root->fs_info->fs_devices, device);
+ btrfs_sysfs_rm_device_link(fs_info->fs_devices, device);
kfree(device);
error:
blkdev_put(bdev, FMODE_EXCL);
@@ -2584,12 +2586,12 @@ int btrfs_init_dev_replace_tgtdev(struct btrfs_root *root, char *device_path,
q = bdev_get_queue(bdev);
if (blk_queue_discard(q))
device->can_discard = 1;
- mutex_lock(&root->fs_info->fs_devices->device_list_mutex);
+ mutex_lock(&fs_info->fs_devices->device_list_mutex);
device->writeable = 1;
device->generation = 0;
- device->io_width = root->fs_info->sectorsize;
- device->io_align = root->fs_info->sectorsize;
- device->sector_size = root->fs_info->sectorsize;
+ device->io_width = fs_info->sectorsize;
+ device->io_align = fs_info->sectorsize;
+ device->sector_size = fs_info->sectorsize;
device->total_bytes = btrfs_device_get_total_bytes(srcdev);
device->disk_total_bytes = btrfs_device_get_disk_total_bytes(srcdev);
device->bytes_used = btrfs_device_get_bytes_used(srcdev);
@@ -2607,7 +2609,7 @@ int btrfs_init_dev_replace_tgtdev(struct btrfs_root *root, char *device_path,
list_add(&device->dev_list, &fs_info->fs_devices->devices);
fs_info->fs_devices->num_devices++;
fs_info->fs_devices->open_devices++;
- mutex_unlock(&root->fs_info->fs_devices->device_list_mutex);
+ mutex_unlock(&fs_info->fs_devices->device_list_mutex);
*device_out = device;
return ret;
@@ -2635,13 +2637,11 @@ static noinline int btrfs_update_device(struct btrfs_trans_handle *trans,
{
int ret;
struct btrfs_path *path;
- struct btrfs_root *root;
+ struct btrfs_root *root = device->fs_info->chunk_root;
struct btrfs_dev_item *dev_item;
struct extent_buffer *leaf;
struct btrfs_key key;
- root = device->fs_info->chunk_root;
-
path = btrfs_alloc_path();
if (!path)
return -ENOMEM;
@@ -2681,7 +2681,8 @@ static noinline int btrfs_update_device(struct btrfs_trans_handle *trans,
int btrfs_grow_device(struct btrfs_trans_handle *trans,
struct btrfs_device *device, u64 new_size)
{
- struct btrfs_super_block *super_copy = device->fs_info->super_copy;
+ struct btrfs_fs_info *fs_info = device->fs_info;
+ struct btrfs_super_block *super_copy = fs_info->super_copy;
struct btrfs_fs_devices *fs_devices;
u64 old_total;
u64 diff;
@@ -2689,17 +2690,17 @@ int btrfs_grow_device(struct btrfs_trans_handle *trans,
if (!device->writeable)
return -EACCES;
- lock_chunks(device->fs_info);
+ lock_chunks(fs_info);
old_total = btrfs_super_total_bytes(super_copy);
diff = new_size - device->total_bytes;
if (new_size <= device->total_bytes ||
device->is_tgtdev_for_dev_replace) {
- unlock_chunks(device->fs_info);
+ unlock_chunks(fs_info);
return -EINVAL;
}
- fs_devices = device->fs_info->fs_devices;
+ fs_devices = fs_info->fs_devices;
btrfs_set_super_total_bytes(super_copy, old_total + diff);
device->fs_devices->total_rw_bytes += diff;
@@ -2710,7 +2711,7 @@ int btrfs_grow_device(struct btrfs_trans_handle *trans,
if (list_empty(&device->resized_list))
list_add_tail(&device->resized_list,
&fs_devices->resized_devices);
- unlock_chunks(device->fs_info);
+ unlock_chunks(fs_info);
return btrfs_update_device(trans, device);
}
@@ -2736,16 +2737,16 @@ static int btrfs_free_chunk(struct btrfs_trans_handle *trans,
if (ret < 0)
goto out;
else if (ret > 0) { /* Logic error or corruption */
- btrfs_handle_fs_error(root->fs_info, -ENOENT,
- "Failed lookup while freeing chunk.");
+ btrfs_handle_fs_error(fs_info, -ENOENT,
+ "Failed lookup while freeing chunk.");
ret = -ENOENT;
goto out;
}
ret = btrfs_del_item(trans, root, path);
if (ret < 0)
- btrfs_handle_fs_error(root->fs_info, ret,
- "Failed to delete chunk item.");
+ btrfs_handle_fs_error(fs_info, ret,
+ "Failed to delete chunk item.");
out:
btrfs_free_path(path);
return ret;
@@ -2754,8 +2755,7 @@ static int btrfs_free_chunk(struct btrfs_trans_handle *trans,
static int btrfs_del_sys_chunk(struct btrfs_fs_info *fs_info,
u64 chunk_objectid, u64 chunk_offset)
{
- struct btrfs_root *root = fs_info->chunk_root;
- struct btrfs_super_block *super_copy = root->fs_info->super_copy;
+ struct btrfs_super_block *super_copy = fs_info->super_copy;
struct btrfs_disk_key *disk_key;
struct btrfs_chunk *chunk;
u8 *ptr;
@@ -2766,7 +2766,7 @@ static int btrfs_del_sys_chunk(struct btrfs_fs_info *fs_info,
u32 cur;
struct btrfs_key key;
- lock_chunks(root->fs_info);
+ lock_chunks(fs_info);
array_size = btrfs_super_sys_array_size(super_copy);
ptr = super_copy->sys_chunk_array;
@@ -2796,22 +2796,21 @@ static int btrfs_del_sys_chunk(struct btrfs_fs_info *fs_info,
cur += len;
}
}
- unlock_chunks(root->fs_info);
+ unlock_chunks(fs_info);
return ret;
}
int btrfs_remove_chunk(struct btrfs_trans_handle *trans,
struct btrfs_fs_info *fs_info, u64 chunk_offset)
{
- struct btrfs_root *root = fs_info->chunk_root;
struct extent_map_tree *em_tree;
struct extent_map *em;
- struct btrfs_root *extent_root = root->fs_info->extent_root;
+ struct btrfs_root *extent_root = fs_info->extent_root;
struct map_lookup *map;
u64 dev_extent_len = 0;
u64 chunk_objectid = BTRFS_FIRST_CHUNK_TREE_OBJECTID;
int i, ret = 0;
- struct btrfs_fs_devices *fs_devices = root->fs_info->fs_devices;
+ struct btrfs_fs_devices *fs_devices = fs_info->fs_devices;
em_tree = &fs_info->mapping_tree.map_tree;
@@ -2854,14 +2853,14 @@ int btrfs_remove_chunk(struct btrfs_trans_handle *trans,
}
if (device->bytes_used > 0) {
- lock_chunks(root->fs_info);
+ lock_chunks(fs_info);
btrfs_device_set_bytes_used(device,
device->bytes_used - dev_extent_len);
- spin_lock(&root->fs_info->free_chunk_lock);
- root->fs_info->free_chunk_space += dev_extent_len;
- spin_unlock(&root->fs_info->free_chunk_lock);
- btrfs_clear_space_info_full(root->fs_info);
- unlock_chunks(root->fs_info);
+ spin_lock(&fs_info->free_chunk_lock);
+ fs_info->free_chunk_space += dev_extent_len;
+ spin_unlock(&fs_info->free_chunk_lock);
+ btrfs_clear_space_info_full(fs_info);
+ unlock_chunks(fs_info);
}
if (map->stripes[i].dev) {
@@ -2875,8 +2874,7 @@ int btrfs_remove_chunk(struct btrfs_trans_handle *trans,
}
mutex_unlock(&fs_devices->device_list_mutex);
- ret = btrfs_free_chunk(trans, root->fs_info, chunk_objectid,
- chunk_offset);
+ ret = btrfs_free_chunk(trans, fs_info, chunk_objectid, chunk_offset);
if (ret) {
btrfs_abort_transaction(trans, ret);
goto out;
@@ -2924,15 +2922,15 @@ static int btrfs_relocate_chunk(struct btrfs_fs_info *fs_info, u64 chunk_offset)
* we release the path used to search the chunk/dev tree and before
* the current task acquires this mutex and calls us.
*/
- ASSERT(mutex_is_locked(&root->fs_info->delete_unused_bgs_mutex));
+ ASSERT(mutex_is_locked(&fs_info->delete_unused_bgs_mutex));
- ret = btrfs_can_relocate(root->fs_info, chunk_offset);
+ ret = btrfs_can_relocate(fs_info, chunk_offset);
if (ret)
return -ENOSPC;
/* step one, relocate all the extents inside this chunk */
btrfs_scrub_pause(root);
- ret = btrfs_relocate_block_group(root->fs_info, chunk_offset);
+ ret = btrfs_relocate_block_group(fs_info, chunk_offset);
btrfs_scrub_continue(root);
if (ret)
return ret;
@@ -2956,7 +2954,8 @@ static int btrfs_relocate_chunk(struct btrfs_fs_info *fs_info, u64 chunk_offset)
static int btrfs_relocate_sys_chunks(struct btrfs_root *root)
{
- struct btrfs_root *chunk_root = root->fs_info->chunk_root;
+ struct btrfs_fs_info *fs_info = root->fs_info;
+ struct btrfs_root *chunk_root = fs_info->chunk_root;
struct btrfs_path *path;
struct extent_buffer *leaf;
struct btrfs_chunk *chunk;
@@ -2977,10 +2976,10 @@ static int btrfs_relocate_sys_chunks(struct btrfs_root *root)
key.type = BTRFS_CHUNK_ITEM_KEY;
while (1) {
- mutex_lock(&root->fs_info->delete_unused_bgs_mutex);
+ mutex_lock(&fs_info->delete_unused_bgs_mutex);
ret = btrfs_search_slot(NULL, chunk_root, &key, path, 0, 0);
if (ret < 0) {
- mutex_unlock(&root->fs_info->delete_unused_bgs_mutex);
+ mutex_unlock(&fs_info->delete_unused_bgs_mutex);
goto error;
}
BUG_ON(ret == 0); /* Corruption */
@@ -2988,7 +2987,7 @@ static int btrfs_relocate_sys_chunks(struct btrfs_root *root)
ret = btrfs_previous_item(chunk_root, path, key.objectid,
key.type);
if (ret)
- mutex_unlock(&root->fs_info->delete_unused_bgs_mutex);
+ mutex_unlock(&fs_info->delete_unused_bgs_mutex);
if (ret < 0)
goto error;
if (ret > 0)
@@ -3003,14 +3002,13 @@ static int btrfs_relocate_sys_chunks(struct btrfs_root *root)
btrfs_release_path(path);
if (chunk_type & BTRFS_BLOCK_GROUP_SYSTEM) {
- ret = btrfs_relocate_chunk(root->fs_info,
- found_key.offset);
+ ret = btrfs_relocate_chunk(fs_info, found_key.offset);
if (ret == -ENOSPC)
failed++;
else
BUG_ON(ret);
}
- mutex_unlock(&root->fs_info->delete_unused_bgs_mutex);
+ mutex_unlock(&fs_info->delete_unused_bgs_mutex);
if (found_key.offset == 0)
break;
@@ -3375,7 +3373,8 @@ static int should_balance_chunk(struct btrfs_root *root,
struct extent_buffer *leaf,
struct btrfs_chunk *chunk, u64 chunk_offset)
{
- struct btrfs_balance_control *bctl = root->fs_info->balance_ctl;
+ struct btrfs_fs_info *fs_info = root->fs_info;
+ struct btrfs_balance_control *bctl = fs_info->balance_ctl;
struct btrfs_balance_args *bargs = NULL;
u64 chunk_type = btrfs_chunk_type(leaf, chunk);
@@ -3400,10 +3399,10 @@ static int should_balance_chunk(struct btrfs_root *root,
/* usage filter */
if ((bargs->flags & BTRFS_BALANCE_ARGS_USAGE) &&
- chunk_usage_filter(bctl->fs_info, chunk_offset, bargs)) {
+ chunk_usage_filter(fs_info, chunk_offset, bargs)) {
return 0;
} else if ((bargs->flags & BTRFS_BALANCE_ARGS_USAGE_RANGE) &&
- chunk_usage_range_filter(bctl->fs_info, chunk_offset, bargs)) {
+ chunk_usage_range_filter(fs_info, chunk_offset, bargs)) {
return 0;
}
@@ -4356,8 +4355,9 @@ int btrfs_check_uuid_tree(struct btrfs_fs_info *fs_info)
*/
int btrfs_shrink_device(struct btrfs_device *device, u64 new_size)
{
+ struct btrfs_fs_info *fs_info = device->fs_info;
+ struct btrfs_root *root = fs_info->dev_root;
struct btrfs_trans_handle *trans;
- struct btrfs_root *root = device->fs_info->dev_root;
struct btrfs_dev_extent *dev_extent = NULL;
struct btrfs_path *path;
u64 length;
@@ -4369,7 +4369,7 @@ int btrfs_shrink_device(struct btrfs_device *device, u64 new_size)
bool checked_pending_chunks = false;
struct extent_buffer *l;
struct btrfs_key key;
- struct btrfs_super_block *super_copy = root->fs_info->super_copy;
+ struct btrfs_super_block *super_copy = fs_info->super_copy;
u64 old_total = btrfs_super_total_bytes(super_copy);
u64 old_size = btrfs_device_get_total_bytes(device);
u64 diff = old_size - new_size;
@@ -4383,16 +4383,16 @@ int btrfs_shrink_device(struct btrfs_device *device, u64 new_size)
path->reada = READA_FORWARD;
- lock_chunks(root->fs_info);
+ lock_chunks(fs_info);
btrfs_device_set_total_bytes(device, new_size);
if (device->writeable) {
device->fs_devices->total_rw_bytes -= diff;
- spin_lock(&root->fs_info->free_chunk_lock);
- root->fs_info->free_chunk_space -= diff;
- spin_unlock(&root->fs_info->free_chunk_lock);
+ spin_lock(&fs_info->free_chunk_lock);
+ fs_info->free_chunk_space -= diff;
+ spin_unlock(&fs_info->free_chunk_lock);
}
- unlock_chunks(root->fs_info);
+ unlock_chunks(fs_info);
again:
key.objectid = device->devid;
@@ -4400,16 +4400,16 @@ int btrfs_shrink_device(struct btrfs_device *device, u64 new_size)
key.type = BTRFS_DEV_EXTENT_KEY;
do {
- mutex_lock(&root->fs_info->delete_unused_bgs_mutex);
+ mutex_lock(&fs_info->delete_unused_bgs_mutex);
ret = btrfs_search_slot(NULL, root, &key, path, 0, 0);
if (ret < 0) {
- mutex_unlock(&root->fs_info->delete_unused_bgs_mutex);
+ mutex_unlock(&fs_info->delete_unused_bgs_mutex);
goto done;
}
ret = btrfs_previous_item(root, path, 0, key.type);
if (ret)
- mutex_unlock(&root->fs_info->delete_unused_bgs_mutex);
+ mutex_unlock(&fs_info->delete_unused_bgs_mutex);
if (ret < 0)
goto done;
if (ret) {
@@ -4423,7 +4423,7 @@ int btrfs_shrink_device(struct btrfs_device *device, u64 new_size)
btrfs_item_key_to_cpu(l, &key, path->slots[0]);
if (key.objectid != device->devid) {
- mutex_unlock(&root->fs_info->delete_unused_bgs_mutex);
+ mutex_unlock(&fs_info->delete_unused_bgs_mutex);
btrfs_release_path(path);
break;
}
@@ -4432,7 +4432,7 @@ int btrfs_shrink_device(struct btrfs_device *device, u64 new_size)
length = btrfs_dev_extent_length(l, dev_extent);
if (key.offset + length <= new_size) {
- mutex_unlock(&root->fs_info->delete_unused_bgs_mutex);
+ mutex_unlock(&fs_info->delete_unused_bgs_mutex);
btrfs_release_path(path);
break;
}
@@ -4440,8 +4440,8 @@ int btrfs_shrink_device(struct btrfs_device *device, u64 new_size)
chunk_offset = btrfs_dev_extent_chunk_offset(l, dev_extent);
btrfs_release_path(path);
- ret = btrfs_relocate_chunk(root->fs_info, chunk_offset);
- mutex_unlock(&root->fs_info->delete_unused_bgs_mutex);
+ ret = btrfs_relocate_chunk(fs_info, chunk_offset);
+ mutex_unlock(&fs_info->delete_unused_bgs_mutex);
if (ret && ret != -ENOSPC)
goto done;
if (ret == -ENOSPC)
@@ -4464,7 +4464,7 @@ int btrfs_shrink_device(struct btrfs_device *device, u64 new_size)
goto done;
}
- lock_chunks(root->fs_info);
+ lock_chunks(fs_info);
/*
* We checked in the above loop all device extents that were already in
@@ -4484,7 +4484,7 @@ int btrfs_shrink_device(struct btrfs_device *device, u64 new_size)
if (contains_pending_extent(trans->transaction, device,
&start, len)) {
- unlock_chunks(root->fs_info);
+ unlock_chunks(fs_info);
checked_pending_chunks = true;
failed = 0;
retried = false;
@@ -4498,11 +4498,11 @@ int btrfs_shrink_device(struct btrfs_device *device, u64 new_size)
btrfs_device_set_disk_total_bytes(device, new_size);
if (list_empty(&device->resized_list))
list_add_tail(&device->resized_list,
- &root->fs_info->fs_devices->resized_devices);
+ &fs_info->fs_devices->resized_devices);
WARN_ON(diff > old_total);
btrfs_set_super_total_bytes(super_copy, old_total - diff);
- unlock_chunks(root->fs_info);
+ unlock_chunks(fs_info);
/* Now btrfs_update_device() will change the on-disk size. */
ret = btrfs_update_device(trans, device);
@@ -4510,14 +4510,14 @@ int btrfs_shrink_device(struct btrfs_device *device, u64 new_size)
done:
btrfs_free_path(path);
if (ret) {
- lock_chunks(root->fs_info);
+ lock_chunks(fs_info);
btrfs_device_set_total_bytes(device, old_size);
if (device->writeable)
device->fs_devices->total_rw_bytes += diff;
- spin_lock(&root->fs_info->free_chunk_lock);
- root->fs_info->free_chunk_space += diff;
- spin_unlock(&root->fs_info->free_chunk_lock);
- unlock_chunks(root->fs_info);
+ spin_lock(&fs_info->free_chunk_lock);
+ fs_info->free_chunk_space += diff;
+ spin_unlock(&fs_info->free_chunk_lock);
+ unlock_chunks(fs_info);
}
return ret;
}
@@ -4526,16 +4526,17 @@ static int btrfs_add_system_chunk(struct btrfs_root *root,
struct btrfs_key *key,
struct btrfs_chunk *chunk, int item_size)
{
- struct btrfs_super_block *super_copy = root->fs_info->super_copy;
+ struct btrfs_fs_info *fs_info = root->fs_info;
+ struct btrfs_super_block *super_copy = fs_info->super_copy;
struct btrfs_disk_key disk_key;
u32 array_size;
u8 *ptr;
- lock_chunks(root->fs_info);
+ lock_chunks(fs_info);
array_size = btrfs_super_sys_array_size(super_copy);
if (array_size + item_size + sizeof(disk_key)
> BTRFS_SYSTEM_CHUNK_ARRAY_SIZE) {
- unlock_chunks(root->fs_info);
+ unlock_chunks(fs_info);
return -EFBIG;
}
@@ -4546,7 +4547,7 @@ static int btrfs_add_system_chunk(struct btrfs_root *root,
memcpy(ptr, chunk, item_size);
item_size += sizeof(disk_key);
btrfs_set_super_sys_array_size(super_copy, array_size + item_size);
- unlock_chunks(root->fs_info);
+ unlock_chunks(fs_info);
return 0;
}
@@ -4838,7 +4839,7 @@ static int __btrfs_alloc_chunk(struct btrfs_trans_handle *trans,
em->block_len = em->len;
em->orig_block_len = stripe_size;
- em_tree = &extent_root->fs_info->mapping_tree.map_tree;
+ em_tree = &info->mapping_tree.map_tree;
write_lock(&em_tree->lock);
ret = add_extent_mapping(em_tree, em, 0);
if (!ret) {
@@ -4862,13 +4863,12 @@ static int __btrfs_alloc_chunk(struct btrfs_trans_handle *trans,
btrfs_device_set_bytes_used(map->stripes[i].dev, num_bytes);
}
- spin_lock(&extent_root->fs_info->free_chunk_lock);
- extent_root->fs_info->free_chunk_space -= (stripe_size *
- map->num_stripes);
- spin_unlock(&extent_root->fs_info->free_chunk_lock);
+ spin_lock(&info->free_chunk_lock);
+ info->free_chunk_space -= (stripe_size * map->num_stripes);
+ spin_unlock(&info->free_chunk_lock);
free_extent_map(em);
- check_raid56_incompat_flag(extent_root->fs_info, type);
+ check_raid56_incompat_flag(info, type);
kfree(devices_info);
return 0;
@@ -4908,20 +4908,19 @@ int btrfs_finish_chunk_alloc(struct btrfs_trans_handle *trans,
int i = 0;
int ret = 0;
- em_tree = &extent_root->fs_info->mapping_tree.map_tree;
+ em_tree = &fs_info->mapping_tree.map_tree;
read_lock(&em_tree->lock);
em = lookup_extent_mapping(em_tree, chunk_offset, chunk_size);
read_unlock(&em_tree->lock);
if (!em) {
- btrfs_crit(extent_root->fs_info,
- "unable to find logical %Lu len %Lu",
+ btrfs_crit(fs_info, "unable to find logical %Lu len %Lu",
chunk_offset, chunk_size);
return -EINVAL;
}
if (em->start != chunk_offset || em->len != chunk_size) {
- btrfs_crit(extent_root->fs_info,
+ btrfs_crit(fs_info,
"found a bad mapping, wanted %Lu-%Lu, found %Lu-%Lu",
chunk_offset, chunk_size, em->start, em->len);
free_extent_map(em);
@@ -4945,7 +4944,7 @@ int btrfs_finish_chunk_alloc(struct btrfs_trans_handle *trans,
* at any time during that final phase of the device replace operation
* (dev-replace.c:btrfs_dev_replace_finishing()).
*/
- mutex_lock(&chunk_root->fs_info->fs_devices->device_list_mutex);
+ mutex_lock(&fs_info->fs_devices->device_list_mutex);
for (i = 0; i < map->num_stripes; i++) {
device = map->stripes[i].dev;
dev_offset = map->stripes[i].physical;
@@ -4962,7 +4961,7 @@ int btrfs_finish_chunk_alloc(struct btrfs_trans_handle *trans,
break;
}
if (ret) {
- mutex_unlock(&chunk_root->fs_info->fs_devices->device_list_mutex);
+ mutex_unlock(&fs_info->fs_devices->device_list_mutex);
goto out;
}
@@ -4976,7 +4975,7 @@ int btrfs_finish_chunk_alloc(struct btrfs_trans_handle *trans,
memcpy(stripe->dev_uuid, device->uuid, BTRFS_UUID_SIZE);
stripe++;
}
- mutex_unlock(&chunk_root->fs_info->fs_devices->device_list_mutex);
+ mutex_unlock(&fs_info->fs_devices->device_list_mutex);
btrfs_set_stack_chunk_length(chunk, chunk_size);
btrfs_set_stack_chunk_owner(chunk, extent_root->root_key.objectid);
@@ -4985,8 +4984,7 @@ int btrfs_finish_chunk_alloc(struct btrfs_trans_handle *trans,
btrfs_set_stack_chunk_num_stripes(chunk, map->num_stripes);
btrfs_set_stack_chunk_io_align(chunk, map->stripe_len);
btrfs_set_stack_chunk_io_width(chunk, map->stripe_len);
- btrfs_set_stack_chunk_sector_size(chunk,
- extent_root->fs_info->sectorsize);
+ btrfs_set_stack_chunk_sector_size(chunk, fs_info->sectorsize);
btrfs_set_stack_chunk_sub_stripes(chunk, map->sub_stripes);
key.objectid = BTRFS_FIRST_CHUNK_TREE_OBJECTID;
@@ -5019,10 +5017,11 @@ int btrfs_finish_chunk_alloc(struct btrfs_trans_handle *trans,
int btrfs_alloc_chunk(struct btrfs_trans_handle *trans,
struct btrfs_root *extent_root, u64 type)
{
+ struct btrfs_fs_info *fs_info = extent_root->fs_info;
u64 chunk_offset;
- ASSERT(mutex_is_locked(&extent_root->fs_info->chunk_mutex));
- chunk_offset = find_next_chunk(extent_root->fs_info);
+ ASSERT(mutex_is_locked(&fs_info->chunk_mutex));
+ chunk_offset = find_next_chunk(fs_info);
return __btrfs_alloc_chunk(trans, extent_root, chunk_offset, type);
}
@@ -5044,7 +5043,7 @@ static noinline int init_first_rw_device(struct btrfs_trans_handle *trans,
if (ret)
return ret;
- sys_chunk_offset = find_next_chunk(root->fs_info);
+ sys_chunk_offset = find_next_chunk(fs_info);
alloc_profile = btrfs_get_alloc_profile(fs_info->chunk_root, 0);
ret = __btrfs_alloc_chunk(trans, extent_root, sys_chunk_offset,
alloc_profile);
@@ -5071,9 +5070,10 @@ static inline int btrfs_chunk_max_errors(struct map_lookup *map)
int btrfs_chunk_readonly(struct btrfs_root *root, u64 chunk_offset)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct extent_map *em;
struct map_lookup *map;
- struct btrfs_mapping_tree *map_tree = &root->fs_info->mapping_tree;
+ struct btrfs_mapping_tree *map_tree = &fs_info->mapping_tree;
int readonly = 0;
int miss_ndevs = 0;
int i;
@@ -5189,10 +5189,11 @@ unsigned long btrfs_full_stripe_len(struct btrfs_root *root,
struct btrfs_mapping_tree *map_tree,
u64 logical)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct extent_map *em;
struct map_lookup *map;
struct extent_map_tree *em_tree = &map_tree->map_tree;
- unsigned long len = root->fs_info->sectorsize;
+ unsigned long len = fs_info->sectorsize;
read_lock(&em_tree->lock);
em = lookup_extent_mapping(em_tree, logical, len);
@@ -6078,6 +6079,7 @@ static noinline void btrfs_schedule_bio(struct btrfs_root *root,
struct btrfs_device *device,
struct bio *bio)
{
+ struct btrfs_fs_info *fs_info = device->fs_info;
int should_queue = 1;
struct btrfs_pending_bios *pending_bios;
@@ -6100,7 +6102,7 @@ static noinline void btrfs_schedule_bio(struct btrfs_root *root,
* made progress against dirty pages when we've really just put it
* on a queue for later
*/
- atomic_inc(&root->fs_info->nr_async_bios);
+ atomic_inc(&fs_info->nr_async_bios);
WARN_ON(bio->bi_next);
bio->bi_next = NULL;
@@ -6122,8 +6124,7 @@ static noinline void btrfs_schedule_bio(struct btrfs_root *root,
spin_unlock(&device->io_lock);
if (should_queue)
- btrfs_queue_work(root->fs_info->submit_workers,
- &device->work);
+ btrfs_queue_work(fs_info->submit_workers, &device->work);
}
static void submit_stripe_bio(struct btrfs_root *root, struct btrfs_bio *bbio,
@@ -6178,6 +6179,7 @@ static void bbio_error(struct btrfs_bio *bbio, struct bio *bio, u64 logical)
int btrfs_map_bio(struct btrfs_root *root, struct bio *bio,
int mirror_num, int async_submit)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_device *dev;
struct bio *first_bio = bio;
u64 logical = (u64)bio->bi_iter.bi_sector << 9;
@@ -6191,11 +6193,11 @@ int btrfs_map_bio(struct btrfs_root *root, struct bio *bio,
length = bio->bi_iter.bi_size;
map_length = length;
- btrfs_bio_counter_inc_blocked(root->fs_info);
- ret = __btrfs_map_block(root->fs_info, bio_op(bio), logical,
+ btrfs_bio_counter_inc_blocked(fs_info);
+ ret = __btrfs_map_block(fs_info, bio_op(bio), logical,
&map_length, &bbio, mirror_num, 1);
if (ret) {
- btrfs_bio_counter_dec(root->fs_info);
+ btrfs_bio_counter_dec(fs_info);
return ret;
}
@@ -6203,7 +6205,7 @@ int btrfs_map_bio(struct btrfs_root *root, struct bio *bio,
bbio->orig_bio = first_bio;
bbio->private = first_bio->bi_private;
bbio->end_io = first_bio->bi_end_io;
- bbio->fs_info = root->fs_info;
+ bbio->fs_info = fs_info;
atomic_set(&bbio->stripes_pending, bbio->num_stripes);
if ((bbio->map_type & BTRFS_BLOCK_GROUP_RAID56_MASK) &&
@@ -6217,12 +6219,12 @@ int btrfs_map_bio(struct btrfs_root *root, struct bio *bio,
mirror_num, 1);
}
- btrfs_bio_counter_dec(root->fs_info);
+ btrfs_bio_counter_dec(fs_info);
return ret;
}
if (map_length < length) {
- btrfs_crit(root->fs_info,
+ btrfs_crit(fs_info,
"mapping failed logical %llu bio len %llu len %llu",
logical, length, map_length);
BUG();
@@ -6246,7 +6248,7 @@ int btrfs_map_bio(struct btrfs_root *root, struct bio *bio,
bbio->stripes[dev_nr].physical, dev_nr,
async_submit);
}
- btrfs_bio_counter_dec(root->fs_info);
+ btrfs_bio_counter_dec(fs_info);
return 0;
}
@@ -6346,6 +6348,7 @@ static int btrfs_check_chunk_valid(struct btrfs_root *root,
struct extent_buffer *leaf,
struct btrfs_chunk *chunk, u64 logical)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
u64 length;
u64 stripe_len;
u16 num_stripes;
@@ -6359,33 +6362,31 @@ static int btrfs_check_chunk_valid(struct btrfs_root *root,
type = btrfs_chunk_type(leaf, chunk);
if (!num_stripes) {
- btrfs_err(root->fs_info, "invalid chunk num_stripes: %u",
+ btrfs_err(fs_info, "invalid chunk num_stripes: %u",
num_stripes);
return -EIO;
}
- if (!IS_ALIGNED(logical, root->fs_info->sectorsize)) {
- btrfs_err(root->fs_info,
- "invalid chunk logical %llu", logical);
+ if (!IS_ALIGNED(logical, fs_info->sectorsize)) {
+ btrfs_err(fs_info, "invalid chunk logical %llu", logical);
return -EIO;
}
- if (btrfs_chunk_sector_size(leaf, chunk) != root->fs_info->sectorsize) {
- btrfs_err(root->fs_info, "invalid chunk sectorsize %u",
+ if (btrfs_chunk_sector_size(leaf, chunk) != fs_info->sectorsize) {
+ btrfs_err(fs_info, "invalid chunk sectorsize %u",
btrfs_chunk_sector_size(leaf, chunk));
return -EIO;
}
- if (!length || !IS_ALIGNED(length, root->fs_info->sectorsize)) {
- btrfs_err(root->fs_info,
- "invalid chunk length %llu", length);
+ if (!length || !IS_ALIGNED(length, fs_info->sectorsize)) {
+ btrfs_err(fs_info, "invalid chunk length %llu", length);
return -EIO;
}
if (!is_power_of_2(stripe_len) || stripe_len != BTRFS_STRIPE_LEN) {
- btrfs_err(root->fs_info, "invalid chunk stripe length: %llu",
+ btrfs_err(fs_info, "invalid chunk stripe length: %llu",
stripe_len);
return -EIO;
}
if (~(BTRFS_BLOCK_GROUP_TYPE_MASK | BTRFS_BLOCK_GROUP_PROFILE_MASK) &
type) {
- btrfs_err(root->fs_info, "unrecognized chunk type: %llu",
+ btrfs_err(fs_info, "unrecognized chunk type: %llu",
~(BTRFS_BLOCK_GROUP_TYPE_MASK |
BTRFS_BLOCK_GROUP_PROFILE_MASK) &
btrfs_chunk_type(leaf, chunk));
@@ -6398,7 +6399,7 @@ static int btrfs_check_chunk_valid(struct btrfs_root *root,
(type & BTRFS_BLOCK_GROUP_DUP && num_stripes > 2) ||
((type & BTRFS_BLOCK_GROUP_PROFILE_MASK) == 0 &&
num_stripes != 1)) {
- btrfs_err(root->fs_info,
+ btrfs_err(fs_info,
"invalid num_stripes:sub_stripes %u:%u for profile %llu",
num_stripes, sub_stripes,
type & BTRFS_BLOCK_GROUP_PROFILE_MASK);
@@ -6412,7 +6413,8 @@ static int read_one_chunk(struct btrfs_root *root, struct btrfs_key *key,
struct extent_buffer *leaf,
struct btrfs_chunk *chunk)
{
- struct btrfs_mapping_tree *map_tree = &root->fs_info->mapping_tree;
+ struct btrfs_fs_info *fs_info = root->fs_info;
+ struct btrfs_mapping_tree *map_tree = &fs_info->mapping_tree;
struct map_lookup *map;
struct extent_map *em;
u64 logical;
@@ -6476,23 +6478,22 @@ static int read_one_chunk(struct btrfs_root *root, struct btrfs_key *key,
read_extent_buffer(leaf, uuid, (unsigned long)
btrfs_stripe_dev_uuid_nr(chunk, i),
BTRFS_UUID_SIZE);
- map->stripes[i].dev = btrfs_find_device(root->fs_info, devid,
+ map->stripes[i].dev = btrfs_find_device(fs_info, devid,
uuid, NULL);
if (!map->stripes[i].dev &&
- !btrfs_test_opt(root->fs_info, DEGRADED)) {
+ !btrfs_test_opt(fs_info, DEGRADED)) {
free_extent_map(em);
return -EIO;
}
if (!map->stripes[i].dev) {
map->stripes[i].dev =
- add_missing_dev(root, root->fs_info->fs_devices,
+ add_missing_dev(root, fs_info->fs_devices,
devid, uuid);
if (!map->stripes[i].dev) {
free_extent_map(em);
return -EIO;
}
- btrfs_warn(root->fs_info,
- "devid %llu uuid %pU is missing",
+ btrfs_warn(fs_info, "devid %llu uuid %pU is missing",
devid, uuid);
}
map->stripes[i].dev->in_fs_metadata = 1;
@@ -6533,12 +6534,13 @@ static void fill_device_from_item(struct extent_buffer *leaf,
static struct btrfs_fs_devices *open_seed_devices(struct btrfs_root *root,
u8 *fsid)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_fs_devices *fs_devices;
int ret;
BUG_ON(!mutex_is_locked(&uuid_mutex));
- fs_devices = root->fs_info->fs_devices->seed;
+ fs_devices = fs_info->fs_devices->seed;
while (fs_devices) {
if (!memcmp(fs_devices->fsid, fsid, BTRFS_UUID_SIZE))
return fs_devices;
@@ -6548,7 +6550,7 @@ static struct btrfs_fs_devices *open_seed_devices(struct btrfs_root *root,
fs_devices = find_fsid(fsid);
if (!fs_devices) {
- if (!btrfs_test_opt(root->fs_info, DEGRADED))
+ if (!btrfs_test_opt(fs_info, DEGRADED))
return ERR_PTR(-ENOENT);
fs_devices = alloc_fs_devices(fsid);
@@ -6565,7 +6567,7 @@ static struct btrfs_fs_devices *open_seed_devices(struct btrfs_root *root,
return fs_devices;
ret = __btrfs_open_devices(fs_devices, FMODE_READ,
- root->fs_info->bdev_holder);
+ fs_info->bdev_holder);
if (ret) {
free_fs_devices(fs_devices);
fs_devices = ERR_PTR(ret);
@@ -6579,8 +6581,8 @@ static struct btrfs_fs_devices *open_seed_devices(struct btrfs_root *root,
goto out;
}
- fs_devices->seed = root->fs_info->fs_devices->seed;
- root->fs_info->fs_devices->seed = fs_devices;
+ fs_devices->seed = fs_info->fs_devices->seed;
+ fs_info->fs_devices->seed = fs_devices;
out:
return fs_devices;
}
@@ -6589,7 +6591,8 @@ static int read_one_dev(struct btrfs_root *root,
struct extent_buffer *leaf,
struct btrfs_dev_item *dev_item)
{
- struct btrfs_fs_devices *fs_devices = root->fs_info->fs_devices;
+ struct btrfs_fs_info *fs_info = root->fs_info;
+ struct btrfs_fs_devices *fs_devices = fs_info->fs_devices;
struct btrfs_device *device;
u64 devid;
int ret;
@@ -6602,24 +6605,24 @@ static int read_one_dev(struct btrfs_root *root,
read_extent_buffer(leaf, fs_uuid, btrfs_device_fsid(dev_item),
BTRFS_UUID_SIZE);
- if (memcmp(fs_uuid, root->fs_info->fsid, BTRFS_UUID_SIZE)) {
+ if (memcmp(fs_uuid, fs_info->fsid, BTRFS_UUID_SIZE)) {
fs_devices = open_seed_devices(root, fs_uuid);
if (IS_ERR(fs_devices))
return PTR_ERR(fs_devices);
}
- device = btrfs_find_device(root->fs_info, devid, dev_uuid, fs_uuid);
+ device = btrfs_find_device(fs_info, devid, dev_uuid, fs_uuid);
if (!device) {
- if (!btrfs_test_opt(root->fs_info, DEGRADED))
+ if (!btrfs_test_opt(fs_info, DEGRADED))
return -EIO;
device = add_missing_dev(root, fs_devices, devid, dev_uuid);
if (!device)
return -ENOMEM;
- btrfs_warn(root->fs_info, "devid %llu uuid %pU missing",
+ btrfs_warn(fs_info, "devid %llu uuid %pU missing",
devid, dev_uuid);
} else {
- if (!device->bdev && !btrfs_test_opt(root->fs_info, DEGRADED))
+ if (!device->bdev && !btrfs_test_opt(fs_info, DEGRADED))
return -EIO;
if(!device->bdev && !device->missing) {
@@ -6648,7 +6651,7 @@ static int read_one_dev(struct btrfs_root *root,
}
}
- if (device->fs_devices != root->fs_info->fs_devices) {
+ if (device->fs_devices != fs_info->fs_devices) {
BUG_ON(device->writeable);
if (device->generation !=
btrfs_device_generation(leaf, dev_item))
@@ -6659,10 +6662,10 @@ static int read_one_dev(struct btrfs_root *root,
device->in_fs_metadata = 1;
if (device->writeable && !device->is_tgtdev_for_dev_replace) {
device->fs_devices->total_rw_bytes += device->total_bytes;
- spin_lock(&root->fs_info->free_chunk_lock);
- root->fs_info->free_chunk_space += device->total_bytes -
+ spin_lock(&fs_info->free_chunk_lock);
+ fs_info->free_chunk_space += device->total_bytes -
device->bytes_used;
- spin_unlock(&root->fs_info->free_chunk_lock);
+ spin_unlock(&fs_info->free_chunk_lock);
}
ret = 0;
return ret;
@@ -6685,7 +6688,7 @@ int btrfs_read_sys_array(struct btrfs_fs_info *fs_info)
u64 type;
struct btrfs_key key;
- ASSERT(BTRFS_SUPER_INFO_SIZE <= root->fs_info->nodesize);
+ ASSERT(BTRFS_SUPER_INFO_SIZE <= fs_info->nodesize);
/*
* This will create extent buffer of nodesize, superblock size is
* fixed to BTRFS_SUPER_INFO_SIZE. If nodesize > sb size, this will
@@ -6804,7 +6807,7 @@ int btrfs_read_chunk_tree(struct btrfs_fs_info *fs_info)
return -ENOMEM;
mutex_lock(&uuid_mutex);
- lock_chunks(root->fs_info);
+ lock_chunks(fs_info);
/*
* Read all device items, and then all the chunk items. All
@@ -6852,26 +6855,26 @@ int btrfs_read_chunk_tree(struct btrfs_fs_info *fs_info)
* After loading chunk tree, we've got all device information,
* do another round of validation checks.
*/
- if (total_dev != root->fs_info->fs_devices->total_devices) {
- btrfs_err(root->fs_info,
+ if (total_dev != fs_info->fs_devices->total_devices) {
+ btrfs_err(fs_info,
"super_num_devices %llu mismatch with num_devices %llu found here",
- btrfs_super_num_devices(root->fs_info->super_copy),
+ btrfs_super_num_devices(fs_info->super_copy),
total_dev);
ret = -EINVAL;
goto error;
}
- if (btrfs_super_total_bytes(root->fs_info->super_copy) <
- root->fs_info->fs_devices->total_rw_bytes) {
- btrfs_err(root->fs_info,
+ if (btrfs_super_total_bytes(fs_info->super_copy) <
+ fs_info->fs_devices->total_rw_bytes) {
+ btrfs_err(fs_info,
"super_total_bytes %llu mismatch with fs_devices total_rw_bytes %llu",
- btrfs_super_total_bytes(root->fs_info->super_copy),
- root->fs_info->fs_devices->total_rw_bytes);
+ btrfs_super_total_bytes(fs_info->super_copy),
+ fs_info->fs_devices->total_rw_bytes);
ret = -EINVAL;
goto error;
}
ret = 0;
error:
- unlock_chunks(root->fs_info);
+ unlock_chunks(fs_info);
mutex_unlock(&uuid_mutex);
btrfs_free_path(path);
@@ -6982,7 +6985,7 @@ static int update_dev_stat_item(struct btrfs_trans_handle *trans,
BUG_ON(!path);
ret = btrfs_search_slot(trans, dev_root, &key, path, -1, 1);
if (ret < 0) {
- btrfs_warn_in_rcu(dev_root->fs_info,
+ btrfs_warn_in_rcu(fs_info,
"error %d while searching for dev_stats item for device %s",
ret, rcu_str_deref(device->name));
goto out;
@@ -6993,7 +6996,7 @@ static int update_dev_stat_item(struct btrfs_trans_handle *trans,
/* need to delete old one and insert a new one */
ret = btrfs_del_item(trans, dev_root, path);
if (ret != 0) {
- btrfs_warn_in_rcu(dev_root->fs_info,
+ btrfs_warn_in_rcu(fs_info,
"delete too small dev_stats item for device %s failed %d",
rcu_str_deref(device->name), ret);
goto out;
@@ -7007,7 +7010,7 @@ static int update_dev_stat_item(struct btrfs_trans_handle *trans,
ret = btrfs_insert_empty_item(trans, dev_root, path,
&key, sizeof(*ptr));
if (ret < 0) {
- btrfs_warn_in_rcu(dev_root->fs_info,
+ btrfs_warn_in_rcu(fs_info,
"insert dev_stats item for device %s failed %d",
rcu_str_deref(device->name), ret);
goto out;
@@ -7095,21 +7098,20 @@ static void btrfs_dev_stat_print_on_load(struct btrfs_device *dev)
int btrfs_get_dev_stats(struct btrfs_root *root,
struct btrfs_ioctl_get_dev_stats *stats)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_device *dev;
- struct btrfs_fs_devices *fs_devices = root->fs_info->fs_devices;
+ struct btrfs_fs_devices *fs_devices = fs_info->fs_devices;
int i;
mutex_lock(&fs_devices->device_list_mutex);
- dev = btrfs_find_device(root->fs_info, stats->devid, NULL, NULL);
+ dev = btrfs_find_device(fs_info, stats->devid, NULL, NULL);
mutex_unlock(&fs_devices->device_list_mutex);
if (!dev) {
- btrfs_warn(root->fs_info,
- "get dev_stats failed, device not found");
+ btrfs_warn(fs_info, "get dev_stats failed, device not found");
return -ENODEV;
} else if (!dev->dev_stats_valid) {
- btrfs_warn(root->fs_info,
- "get dev_stats failed, not yet valid");
+ btrfs_warn(fs_info, "get dev_stats failed, not yet valid");
return -ENODEV;
} else if (stats->flags & BTRFS_DEV_STATS_RESET) {
for (i = 0; i < BTRFS_DEV_STAT_VALUES_MAX; i++) {
@@ -7186,6 +7188,7 @@ void btrfs_update_commit_device_size(struct btrfs_fs_info *fs_info)
void btrfs_update_commit_device_bytes_used(struct btrfs_root *root,
struct btrfs_transaction *transaction)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct extent_map *em;
struct map_lookup *map;
struct btrfs_device *dev;
@@ -7195,7 +7198,7 @@ void btrfs_update_commit_device_bytes_used(struct btrfs_root *root,
return;
/* In order to kick the device replace finish process */
- lock_chunks(root->fs_info);
+ lock_chunks(fs_info);
list_for_each_entry(em, &transaction->pending_chunks, list) {
map = em->map_lookup;
@@ -7204,7 +7207,7 @@ void btrfs_update_commit_device_bytes_used(struct btrfs_root *root,
dev->commit_bytes_used = dev->bytes_used;
}
}
- unlock_chunks(root->fs_info);
+ unlock_chunks(fs_info);
}
void btrfs_set_fs_info_ptr(struct btrfs_fs_info *fs_info)
