}
 
 static int insert_extent_backref(struct btrfs_trans_handle *trans,
-                                struct btrfs_fs_info *fs_info,
                                 struct btrfs_path *path,
                                 u64 bytenr, u64 parent, u64 root_objectid,
                                 u64 owner, u64 offset, int refs_to_add)
        path->reada = READA_FORWARD;
        path->leave_spinning = 1;
        /* now insert the actual backref */
-       ret = insert_extent_backref(trans, fs_info, path, bytenr, parent,
-                                   root_objectid, owner, offset, refs_to_add);
+       ret = insert_extent_backref(trans, path, bytenr, parent, root_objectid,
+                                   owner, offset, refs_to_add);
        if (ret)
                btrfs_abort_transaction(trans, ret);
 out: