diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c index d4d89e0738ff4402911fb0f424ea9c9a43920552..cf9a6d75a48453eb8f806a098de43eff1990055d 100644 --- a/fs/btrfs/volumes.c +++ b/fs/btrfs/volumes.c @@ -3142,7 +3142,18 @@ static int btrfs_relocate_sys_chunks(struct btrfs_fs_info *fs_info) mutex_unlock(&fs_info->delete_unused_bgs_mutex); goto error; } - BUG_ON(ret == 0); /* Corruption */ + if (ret == 0) { + /* + * On the first search we would find chunk tree with + * offset -1, which is not possible. On subsequent + * loops this would find an existing item on an invalid + * offset (one less than the previous one, wrong + * alignment and size). + */ + ret = -EUCLEAN; + mutex_unlock(&fs_info->delete_unused_bgs_mutex); + goto error; + } ret = btrfs_previous_item(chunk_root, path, key.objectid, key.type);