func: static void tracked_request_end(BdrvTrackedRequest *req)
  
  {
  
      if (req->serialising) {
  
          req->bs->serialising_in_flight--;
  
      }
  
  
  
      QLIST_REMOVE(req, list);
  
      qemu_co_queue_restart_all(&req->wait_queue);
  
  }
  