diff options
Diffstat (limited to 'root-tree.c')
| -rw-r--r-- | root-tree.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/root-tree.c b/root-tree.c index cca424e3..ab01a140 100644 --- a/root-tree.c +++ b/root-tree.c @@ -143,6 +143,31 @@ int btrfs_insert_root(struct btrfs_trans_handle *trans, struct btrfs_root return ret; } +/* drop the root item for 'key' from 'root' */ +int btrfs_del_root(struct btrfs_trans_handle *trans, struct btrfs_root *root, + struct btrfs_key *key) +{ + struct btrfs_path *path; + int ret; + + path = btrfs_alloc_path(); + if (!path) + return -ENOMEM; + ret = btrfs_search_slot(trans, root, key, path, -1, 1); + if (ret < 0) + goto out; + + if (ret != 0) { + ret = -ENOENT; + goto out; + } + + ret = btrfs_del_item(trans, root, path); +out: + btrfs_free_path(path); + return ret; +} + /* * add a btrfs_root_ref item. type is either BTRFS_ROOT_REF_KEY * or BTRFS_ROOT_BACKREF_KEY. |