vhost_add_used_and_signal_n
vhost_add_used_and_signal_n(vq->dev, vq,
vhost_add_used_and_signal_n(dev, vq, vq->heads,
EXPORT_SYMBOL_GPL(vhost_add_used_and_signal_n);
void vhost_add_used_and_signal_n(struct vhost_dev *, struct vhost_virtqueue *,