diff options
Diffstat (limited to 'fs/btrfs/ctree.c')
| -rw-r--r-- | fs/btrfs/ctree.c | 26 |
1 files changed, 13 insertions, 13 deletions
diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c index 64b87894460..22629809c9c 100644 --- a/fs/btrfs/ctree.c +++ b/fs/btrfs/ctree.c @@ -2461,32 +2461,32 @@ static int key_search(struct extent_buffer *b, struct btrfs_key *key, return 0; } -/* Proposed generic search function, meant to take the place of the -* various small search helper functions throughout the code and standardize -* the search interface. Right now, it only replaces the former __inode_info -* in backref.c, and the former btrfs_find_root_ref in root-tree.c. -* -* If a null key is passed, it returns immediately after running -* btrfs_search_slot, leaving the path filled as it is and passing its -* return value upward. If a real key is passed, it will set the caller's -* path to point to the first item in the tree after its specified -* objectid, type, and offset for which objectid and type match the input. -*/ -int btrfs_find_item(struct btrfs_root *fs_root, struct btrfs_path *path, +int btrfs_find_item(struct btrfs_root *fs_root, struct btrfs_path *found_path, u64 iobjectid, u64 ioff, u8 key_type, struct btrfs_key *found_key) { int ret; struct btrfs_key key; struct extent_buffer *eb; + struct btrfs_path *path; key.type = key_type; key.objectid = iobjectid; key.offset = ioff; + if (found_path == NULL) { + path = btrfs_alloc_path(); + if (!path) + return -ENOMEM; + } else + path = found_path; + ret = btrfs_search_slot(NULL, fs_root, &key, path, 0, 0); - if ((ret < 0) || (found_key == NULL)) + if ((ret < 0) || (found_key == NULL)) { + if (path != found_path) + btrfs_free_path(path); return ret; + } eb = path->nodes[0]; if (ret && path->slots[0] >= btrfs_header_nritems(eb)) { |