Btrfs: crash recovery fixes
Signed-off-by: Chris Mason <chris.mason@oracle.com>
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 01dc305..14b9326 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -523,6 +523,7 @@
}
return 0;
fail:
+ WARN_ON(1);
for (i =0; i < faili; i++) {
if (leaf) {
u64 disk_blocknr;
@@ -572,7 +573,7 @@
bi = btrfs_item_ptr(btrfs_buffer_leaf(path->nodes[0]), path->slots[0],
struct btrfs_block_group_item);
memcpy(bi, &cache->item, sizeof(*bi));
- mark_buffer_dirty(path->nodes[0]);
+ btrfs_mark_buffer_dirty(path->nodes[0]);
btrfs_release_path(extent_root, path);
fail:
finish_current_insert(trans, extent_root);
@@ -739,8 +740,30 @@
return ret;
}
-int btrfs_finish_extent_commit(struct btrfs_trans_handle *trans, struct
- btrfs_root *root)
+int btrfs_copy_pinned(struct btrfs_root *root, struct radix_tree_root *copy)
+{
+ unsigned long gang[8];
+ u64 last = 0;
+ struct radix_tree_root *pinned_radix = &root->fs_info->pinned_radix;
+ int ret;
+ int i;
+
+ while(1) {
+ ret = find_first_radix_bit(pinned_radix, gang, last,
+ ARRAY_SIZE(gang));
+ if (!ret)
+ break;
+ for (i = 0 ; i < ret; i++) {
+ set_radix_bit(copy, gang[i]);
+ last = gang[i] + 1;
+ }
+ }
+ return 0;
+}
+
+int btrfs_finish_extent_commit(struct btrfs_trans_handle *trans,
+ struct btrfs_root *root,
+ struct radix_tree_root *unpin_radix)
{
unsigned long gang[8];
struct inode *btree_inode = root->fs_info->btree_inode;
@@ -752,7 +775,7 @@
struct radix_tree_root *extent_radix = &root->fs_info->extent_map_radix;
while(1) {
- ret = find_first_radix_bit(pinned_radix, gang, 0,
+ ret = find_first_radix_bit(unpin_radix, gang, 0,
ARRAY_SIZE(gang));
if (!ret)
break;
@@ -760,6 +783,7 @@
first = gang[0];
for (i = 0; i < ret; i++) {
clear_radix_bit(pinned_radix, gang[i]);
+ clear_radix_bit(unpin_radix, gang[i]);
block_group = btrfs_lookup_block_group(root->fs_info,
gang[i]);
if (block_group) {
@@ -1309,6 +1333,7 @@
if (data) {
ret = find_free_extent(trans, root, 0, 0,
search_end, 0, &prealloc_key, 0, 0, 0);
+ BUG_ON(ret);
if (ret)
return ret;
exclude_nr = info->extent_tree_prealloc_nr;
@@ -1319,6 +1344,7 @@
ret = find_free_extent(trans, root, num_blocks, search_start,
search_end, hint_block, ins,
exclude_start, exclude_nr, data);
+ BUG_ON(ret);
if (ret)
return ret;
@@ -1334,10 +1360,12 @@
if (!data) {
exclude_start = ins->objectid;
exclude_nr = ins->offset;
+ hint_block = exclude_start + exclude_nr;
ret = find_free_extent(trans, root, 0, search_start,
search_end, hint_block,
&prealloc_key, exclude_start,
exclude_nr, 0);
+ BUG_ON(ret);
if (ret)
return ret;
}
@@ -1348,6 +1376,7 @@
ret = btrfs_insert_item(trans, extent_root, ins, &extent_item,
sizeof(extent_item));
+ BUG_ON(ret);
finish_current_insert(trans, extent_root);
pending_ret = del_pending_extents(trans, extent_root);
if (ret) {
