-int btrfs_lookup_file_extent(struct btrfs_trans_handle *trans,
- struct btrfs_root *root,
- struct btrfs_path *path, u64 objectid,
- u64 offset, int mod)
-{
- int ret;
- struct btrfs_key file_key;
- int ins_len = mod < 0 ? -1 : 0;
- int cow = mod != 0;
-
- file_key.objectid = objectid;
- file_key.offset = offset;
- btrfs_set_key_type(&file_key, BTRFS_EXTENT_DATA_KEY);
- ret = btrfs_search_slot(trans, root, &file_key, path, ins_len, cow);
- return ret;
-}
-