blk_mq_add_to_batch
if (!blk_mq_add_to_batch(req, iob, cmd->error != BLK_STS_OK,
if (blk_mq_add_to_batch(req, iob, false, blk_mq_end_request_batch))
!blk_mq_add_to_batch(req, iob, status != VIRTIO_BLK_S_OK,
!blk_mq_add_to_batch(req, iob,
!blk_mq_add_to_batch(req, iob,