diff options
Diffstat (limited to 'fs/btrfs/backref.c')
| -rw-r--r-- | fs/btrfs/backref.c | 19 |
1 files changed, 9 insertions, 10 deletions
diff --git a/fs/btrfs/backref.c b/fs/btrfs/backref.c index 02d7d7b2563b..f47c1528eb9a 100644 --- a/fs/btrfs/backref.c +++ b/fs/btrfs/backref.c @@ -1501,7 +1501,13 @@ int btrfs_find_all_roots(struct btrfs_trans_handle *trans, } /** - * btrfs_check_shared - tell us whether an extent is shared + * Check if an extent is shared or not + * + * @root: root inode belongs to + * @inum: inode number of the inode whose extent we are checking + * @bytenr: logical bytenr of the extent we are checking + * @roots: list of roots this extent is shared among + * @tmp: temporary list used for iteration * * btrfs_check_shared uses the backref walking code but will short * circuit as soon as it finds a root or inode that doesn't match the @@ -2541,13 +2547,6 @@ void btrfs_backref_cleanup_node(struct btrfs_backref_cache *cache, list_del(&edge->list[UPPER]); btrfs_backref_free_edge(cache, edge); - if (RB_EMPTY_NODE(&upper->rb_node)) { - BUG_ON(!list_empty(&node->upper)); - btrfs_backref_drop_node(cache, node); - node = upper; - node->lowest = 1; - continue; - } /* * Add the node to leaf node list if no other child block * cached. @@ -2624,7 +2623,7 @@ static int handle_direct_tree_backref(struct btrfs_backref_cache *cache, /* Only reloc backref cache cares about a specific root */ if (cache->is_reloc) { root = find_reloc_root(cache->fs_info, cur->bytenr); - if (WARN_ON(!root)) + if (!root) return -ENOENT; cur->root = root; } else { @@ -3117,7 +3116,7 @@ void btrfs_backref_error_cleanup(struct btrfs_backref_cache *cache, list_del_init(&lower->list); if (lower == node) node = NULL; - btrfs_backref_free_node(cache, lower); + btrfs_backref_drop_node(cache, lower); } btrfs_backref_cleanup_node(cache, node); |