+static struct rbd_img_request *rbd_parent_request_create(
+ struct rbd_obj_request *obj_request,
+ u64 img_offset, u64 length)
+{
+ struct rbd_img_request *parent_request;
+ struct rbd_device *rbd_dev;
+
+ rbd_assert(obj_request->img_request);
+ rbd_dev = obj_request->img_request->rbd_dev;
+
+ parent_request = rbd_img_request_create(rbd_dev->parent,
+ img_offset, length, false);
+ if (!parent_request)
+ return NULL;
+
+ img_request_child_set(parent_request);
+ rbd_obj_request_get(obj_request);
+ parent_request->obj_request = obj_request;
+
+ return parent_request;
+}
+
+static void rbd_parent_request_destroy(struct kref *kref)
+{
+ struct rbd_img_request *parent_request;
+ struct rbd_obj_request *orig_request;
+
+ parent_request = container_of(kref, struct rbd_img_request, kref);
+ orig_request = parent_request->obj_request;
+
+ parent_request->obj_request = NULL;
+ rbd_obj_request_put(orig_request);
+ img_request_child_clear(parent_request);
+
+ rbd_img_request_destroy(kref);
+}
+