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-rw-r--r--fs/btrfs/extent-tree.c10
1 files changed, 6 insertions, 4 deletions
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 1c591d6eae5..3af53f8313a 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -6136,7 +6136,6 @@ void btrfs_free_tree_block(struct btrfs_trans_handle *trans,
struct extent_buffer *buf,
u64 parent, int last_ref)
{
- struct btrfs_block_group_cache *cache = NULL;
int pin = 1;
int ret;
@@ -6152,17 +6151,20 @@ void btrfs_free_tree_block(struct btrfs_trans_handle *trans,
if (!last_ref)
return;
- cache = btrfs_lookup_block_group(root->fs_info, buf->start);
-
if (btrfs_header_generation(buf) == trans->transid) {
+ struct btrfs_block_group_cache *cache;
+
if (root->root_key.objectid != BTRFS_TREE_LOG_OBJECTID) {
ret = check_ref_cleanup(trans, root, buf->start);
if (!ret)
goto out;
}
+ cache = btrfs_lookup_block_group(root->fs_info, buf->start);
+
if (btrfs_header_flag(buf, BTRFS_HEADER_FLAG_WRITTEN)) {
pin_down_extent(root, cache, buf->start, buf->len, 1);
+ btrfs_put_block_group(cache);
goto out;
}
@@ -6170,6 +6172,7 @@ void btrfs_free_tree_block(struct btrfs_trans_handle *trans,
btrfs_add_free_space(cache, buf->start, buf->len);
btrfs_update_reserved_bytes(cache, buf->len, RESERVE_FREE, 0);
+ btrfs_put_block_group(cache);
trace_btrfs_reserved_extent_free(root, buf->start, buf->len);
pin = 0;
}
@@ -6184,7 +6187,6 @@ out:
* anymore.
*/
clear_bit(EXTENT_BUFFER_CORRUPT, &buf->bflags);
- btrfs_put_block_group(cache);
}
/* Can return -ENOMEM */