btrfs: pull node/sector/stripe sizes out of root and into fs_info
We track the node sizes per-root, but they never vary from the values
in the superblock. This patch messes with the 80-column style a bit,
but subsequent patches to factor out root->fs_info into a convenience
variable fix it up again.
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
index 3c1f4be..1e0af55 100644
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -497,8 +497,9 @@ 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->sectorsize - 1);
- num_bytes = round_up(write_bytes + pos - start_pos, root->sectorsize);
+ start_pos = pos & ~((u64) root->fs_info->sectorsize - 1);
+ num_bytes = round_up(write_bytes + pos - start_pos,
+ root->fs_info->sectorsize);
end_of_last_block = start_pos + num_bytes - 1;
err = btrfs_set_extent_delalloc(inode, start_pos, end_of_last_block,
@@ -935,7 +936,7 @@ int __btrfs_drop_extents(struct btrfs_trans_handle *trans,
inode_sub_bytes(inode,
extent_end - key.offset);
extent_end = ALIGN(extent_end,
- root->sectorsize);
+ root->fs_info->sectorsize);
} else if (update_refs && disk_bytenr > 0) {
ret = btrfs_free_extent(trans, root,
disk_bytenr, num_bytes, 0,
@@ -1423,9 +1424,10 @@ lock_and_cleanup_extent_if_need(struct inode *inode, struct page **pages,
int i;
int ret = 0;
- start_pos = round_down(pos, root->sectorsize);
+ start_pos = round_down(pos, root->fs_info->sectorsize);
last_pos = start_pos
- + round_up(pos + write_bytes - start_pos, root->sectorsize) - 1;
+ + round_up(pos + write_bytes - start_pos,
+ root->fs_info->sectorsize) - 1;
if (start_pos < inode->i_size) {
struct btrfs_ordered_extent *ordered;
@@ -1482,8 +1484,9 @@ static noinline int check_can_nocow(struct inode *inode, loff_t pos,
if (!ret)
return -ENOSPC;
- lockstart = round_down(pos, root->sectorsize);
- lockend = round_up(pos + *write_bytes, root->sectorsize) - 1;
+ lockstart = round_down(pos, root->fs_info->sectorsize);
+ lockend = round_up(pos + *write_bytes,
+ root->fs_info->sectorsize) - 1;
while (1) {
lock_extent(&BTRFS_I(inode)->io_tree, lockstart, lockend);
@@ -1518,6 +1521,7 @@ static noinline ssize_t __btrfs_buffered_write(struct file *file,
{
struct inode *inode = file_inode(file);
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;
@@ -1563,9 +1567,9 @@ static noinline ssize_t __btrfs_buffered_write(struct file *file,
break;
}
- sector_offset = pos & (root->sectorsize - 1);
+ sector_offset = pos & (fs_info->sectorsize - 1);
reserve_bytes = round_up(write_bytes + sector_offset,
- root->sectorsize);
+ fs_info->sectorsize);
ret = btrfs_check_data_free_space(inode, pos, write_bytes);
if (ret < 0) {
@@ -1585,7 +1589,7 @@ static noinline ssize_t __btrfs_buffered_write(struct file *file,
PAGE_SIZE);
reserve_bytes = round_up(write_bytes +
sector_offset,
- root->sectorsize);
+ fs_info->sectorsize);
} else {
break;
}
@@ -1632,7 +1636,7 @@ static noinline ssize_t __btrfs_buffered_write(struct file *file,
num_sectors = BTRFS_BYTES_TO_BLKS(root->fs_info,
reserve_bytes);
dirty_sectors = round_up(copied + sector_offset,
- root->sectorsize);
+ root->fs_info->sectorsize);
dirty_sectors = BTRFS_BYTES_TO_BLKS(root->fs_info,
dirty_sectors);
@@ -1678,7 +1682,8 @@ static noinline ssize_t __btrfs_buffered_write(struct file *file,
} else {
u64 __pos;
- __pos = round_down(pos, root->sectorsize) +
+ __pos = round_down(pos,
+ root->fs_info->sectorsize) +
(dirty_pages << PAGE_SHIFT);
btrfs_delalloc_release_space(inode, __pos,
release_bytes);
@@ -1686,7 +1691,7 @@ static noinline ssize_t __btrfs_buffered_write(struct file *file,
}
release_bytes = round_up(copied + sector_offset,
- root->sectorsize);
+ root->fs_info->sectorsize);
if (copied > 0)
ret = btrfs_dirty_pages(root, inode, pages,
@@ -1706,8 +1711,10 @@ static noinline ssize_t __btrfs_buffered_write(struct file *file,
btrfs_end_write_no_snapshoting(root);
if (only_release_metadata && copied > 0) {
- lockstart = round_down(pos, root->sectorsize);
- lockend = round_up(pos + copied, root->sectorsize) - 1;
+ lockstart = round_down(pos,
+ root->fs_info->sectorsize);
+ lockend = round_up(pos + copied,
+ root->fs_info->sectorsize) - 1;
set_extent_bit(&BTRFS_I(inode)->io_tree, lockstart,
lockend, EXTENT_NORESERVE, NULL,
@@ -1720,7 +1727,7 @@ static noinline ssize_t __btrfs_buffered_write(struct file *file,
cond_resched();
balance_dirty_pages_ratelimited(inode->i_mapping);
- if (dirty_pages < (root->nodesize >> PAGE_SHIFT) + 1)
+ if (dirty_pages < (root->fs_info->nodesize >> PAGE_SHIFT) + 1)
btrfs_btree_balance_dirty(root);
pos += copied;
@@ -1735,7 +1742,7 @@ 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->sectorsize),
+ round_down(pos, root->fs_info->sectorsize),
release_bytes);
}
}
@@ -1853,17 +1860,18 @@ 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->sectorsize);
+ start_pos = round_down(pos, root->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->sectorsize);
+ end_pos = round_up(pos + count,
+ root->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->sectorsize))
+ if (start_pos > round_up(oldsize, root->fs_info->sectorsize))
clean_page = 1;
}
@@ -2377,7 +2385,7 @@ 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->sectorsize);
+ ino_size = round_up(inode->i_size, root->fs_info->sectorsize);
ret = find_first_non_hole(inode, &offset, &len);
if (ret < 0)
goto out_only_mutex;
@@ -2387,9 +2395,9 @@ static int btrfs_punch_hole(struct inode *inode, loff_t offset, loff_t len)
goto out_only_mutex;
}
- lockstart = round_up(offset, BTRFS_I(inode)->root->sectorsize);
+ lockstart = round_up(offset, btrfs_inode_sectorsize(inode));
lockend = round_down(offset + len,
- BTRFS_I(inode)->root->sectorsize) - 1;
+ 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));
/*
@@ -2400,7 +2408,7 @@ 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->sectorsize) {
+ if (same_block && len < root->fs_info->sectorsize) {
if (offset < ino_size) {
truncated_block = true;
ret = btrfs_truncate_block(inode, offset, len, 0);
@@ -2718,7 +2726,7 @@ static long btrfs_fallocate(struct file *file, int mode,
u64 locked_end;
u64 actual_end = 0;
struct extent_map *em;
- int blocksize = BTRFS_I(inode)->root->sectorsize;
+ int blocksize = btrfs_inode_sectorsize(inode);
int ret;
alloc_start = round_down(offset, blocksize);
@@ -2932,10 +2940,11 @@ 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->sectorsize);
- lockend = round_up(i_size_read(inode), root->sectorsize);
+ lockstart = round_down(start, root->fs_info->sectorsize);
+ lockend = round_up(i_size_read(inode),
+ root->fs_info->sectorsize);
if (lockend <= lockstart)
- lockend = lockstart + root->sectorsize;
+ lockend = lockstart + root->fs_info->sectorsize;
lockend--;
len = lockend - lockstart + 1;
