vhost_add_used_and_signal
vhost_add_used_and_signal(&net->dev, vq, head, 0);
vhost_add_used_and_signal(&vs->dev, vq, vc->head, 0);
vhost_add_used_and_signal(&vs->dev, vq, vc->head, 0);
vhost_add_used_and_signal(&vs->dev, vq, vq_desc, 0);
vhost_add_used_and_signal(&vs->dev, vq, vc->head, 0);
vhost_add_used_and_signal(&vs->dev, vq, head, 0);
vhost_add_used_and_signal(&n->dev, vq, head, 0);
EXPORT_SYMBOL_GPL(vhost_add_used_and_signal);
void vhost_add_used_and_signal(struct vhost_dev *, struct vhost_virtqueue *,