diff options
| -rw-r--r-- | fs/btrfs/free-space-cache.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/fs/btrfs/free-space-cache.c b/fs/btrfs/free-space-cache.c index 85404c62a1c2..835071fa39a9 100644 --- a/fs/btrfs/free-space-cache.c +++ b/fs/btrfs/free-space-cache.c @@ -920,6 +920,8 @@ static int copy_free_space_cache(struct btrfs_block_group *block_group, return ret; } +static struct lock_class_key btrfs_free_space_inode_key; + int load_free_space_cache(struct btrfs_block_group *block_group) { struct btrfs_fs_info *fs_info = block_group->fs_info; @@ -989,6 +991,14 @@ int load_free_space_cache(struct btrfs_block_group *block_group) } spin_unlock(&block_group->lock); + /* + * Reinitialize the class of struct inode's mapping->invalidate_lock for + * free space inodes to prevent false positives related to locks for normal + * inodes. + */ + lockdep_set_class(&(&inode->i_data)->invalidate_lock, + &btrfs_free_space_inode_key); + ret = __load_free_space_cache(fs_info->tree_root, inode, &tmp_ctl, path, block_group->start); btrfs_free_path(path); |