struct btrfs_root *root,
const char *name, int name_len,
u64 inode_objectid, u64 ref_objectid, u64 *index);
-int btrfs_get_inode_ref_index(struct btrfs_trans_handle *trans,
- struct btrfs_root *root,
- struct btrfs_path *path,
- const char *name, int name_len,
- u64 inode_objectid, u64 ref_objectid, int mod,
- u64 *ret_index);
int btrfs_insert_empty_inode(struct btrfs_trans_handle *trans,
struct btrfs_root *root,
struct btrfs_path *path, u64 objectid);
return 0;
}
-static struct btrfs_inode_ref *
-btrfs_lookup_inode_ref(struct btrfs_trans_handle *trans,
- struct btrfs_root *root,
- struct btrfs_path *path,
- const char *name, int name_len,
- u64 inode_objectid, u64 ref_objectid, int ins_len,
- int cow)
-{
- int ret;
- struct btrfs_key key;
- struct btrfs_inode_ref *ref;
-
- key.objectid = inode_objectid;
- key.type = BTRFS_INODE_REF_KEY;
- key.offset = ref_objectid;
-
- ret = btrfs_search_slot(trans, root, &key, path, ins_len, cow);
- if (ret < 0)
- return ERR_PTR(ret);
- if (ret > 0)
- return NULL;
- if (!find_name_in_backref(path, name, name_len, &ref))
- return NULL;
- return ref;
-}
-
/* Returns NULL if no extref found */
struct btrfs_inode_extref *
btrfs_lookup_inode_extref(struct btrfs_trans_handle *trans,
return extref;
}
-int btrfs_get_inode_ref_index(struct btrfs_trans_handle *trans,
- struct btrfs_root *root,
- struct btrfs_path *path,
- const char *name, int name_len,
- u64 inode_objectid, u64 ref_objectid, int mod,
- u64 *ret_index)
-{
- struct btrfs_inode_ref *ref;
- struct btrfs_inode_extref *extref;
- int ins_len = mod < 0 ? -1 : 0;
- int cow = mod != 0;
-
- ref = btrfs_lookup_inode_ref(trans, root, path, name, name_len,
- inode_objectid, ref_objectid, ins_len,
- cow);
- if (IS_ERR(ref))
- return PTR_ERR(ref);
-
- if (ref != NULL) {
- *ret_index = btrfs_inode_ref_index(path->nodes[0], ref);
- return 0;
- }
-
- btrfs_release_path(path);
-
- extref = btrfs_lookup_inode_extref(trans, root, path, name,
- name_len, inode_objectid,
- ref_objectid, ins_len, cow);
- if (IS_ERR(extref))
- return PTR_ERR(extref);
-
- if (extref) {
- *ret_index = btrfs_inode_extref_index(path->nodes[0], extref);
- return 0;
- }
-
- return -ENOENT;
-}
-
static int btrfs_del_inode_extref(struct btrfs_trans_handle *trans,
struct btrfs_root *root,
const char *name, int name_len,