/* The name is used to make sure the index really points to the name you were looking for.  */
struct btrfs_dir_item* btrfs_lookup_dir_index_item(struct btrfs_trans_handle *trans, struct btrfs_root *root, struct btrfs_path *path, u64 dir, u64 objectid, const char *name, int name_len, int mod)
/* The name is used to make sure the index really points to the name you were looking for.  */
struct btrfs_dir_item* btrfs_lookup_dir_index_item(struct btrfs_trans_handle *trans, struct btrfs_root *root, struct btrfs_path *path, u64 dir, u64 objectid, const char *name, int name_len, int mod)
{
	int ret;
	struct btrfs_key key;
	int ins_len = mod < 0 ? -1 : 0;
	int cow = mod != 0;
	key.objectid = dir;
	btrfs_set_key_type(&key, BTRFS_DIR_INDEX_KEY);
	key.offset = objectid;
	ret = btrfs_search_slot(trans, root, &key, path, ins_len, cow);
	if (ret < 0)
		return ERR_PTR(ret);
	if (ret > 0)
		return ERR_PTR(-ENOENT);
	return btrfs_match_dir_item_name(root, path, name, name_len);
}