36 #define vhost_used_event(vq) ((__virtio16 __user *)&vq->avail->ring[vq->num])
37 #define vhost_avail_event(vq) ((__virtio16 __user *)&vq->used->ring[vq->num])
180 	vq->num = 1;  in vhost_vq_reset()
549 static int vq_access_ok(struct vhost_virtqueue *vq, unsigned int num,  in vq_access_ok()  argument
555 	return access_ok(VERIFY_READ, desc, num * sizeof *desc) &&  in vq_access_ok()
557 			 sizeof *avail + num * sizeof *avail->ring + s) &&  in vq_access_ok()
559 			sizeof *used + num * sizeof *used->ring + s);  in vq_access_ok()
581 					vq->num * sizeof *vq->used->ring + s));  in vq_log_access_ok()
588 	return vq_access_ok(vq, vq->num, vq->desc, vq->avail, vq->used) &&  in vhost_vq_access_ok()
668 		if (!s.num || s.num > 0xffff || (s.num & (s.num - 1))) {  in vhost_vring_ioctl()
672 		vq->num = s.num;  in vhost_vring_ioctl()
685 		if (s.num > 0xffff) {  in vhost_vring_ioctl()
689 		vq->last_avail_idx = s.num;  in vhost_vring_ioctl()
695 		s.num = vq->last_avail_idx;  in vhost_vring_ioctl()
731 			if (!vq_access_ok(vq, vq->num,  in vhost_vring_ioctl()
743 					   vq->num * sizeof *vq->used->ring)) {  in vhost_vring_ioctl()
1241 	if (unlikely((u16)(vq->avail_idx - last_avail_idx) > vq->num)) {  in vhost_get_vq_desc()
1249 		return vq->num;  in vhost_get_vq_desc()
1257 				&vq->avail->ring[last_avail_idx % vq->num]))) {  in vhost_get_vq_desc()
1260 		       &vq->avail->ring[last_avail_idx % vq->num]);  in vhost_get_vq_desc()
1267 	if (unlikely(head >= vq->num)) {  in vhost_get_vq_desc()
1269 		       head, vq->num);  in vhost_get_vq_desc()
1281 		if (unlikely(i >= vq->num)) {  in vhost_get_vq_desc()
1283 			       i, vq->num, head);  in vhost_get_vq_desc()
1286 		if (unlikely(++found > vq->num)) {  in vhost_get_vq_desc()
1289 			       i, vq->num, head);  in vhost_get_vq_desc()
1377 	start = vq->last_used_idx % vq->num;  in __vhost_add_used_n()
1419 	start = vq->last_used_idx % vq->num;  in vhost_add_used_n()
1420 	n = vq->num - start;  in vhost_add_used_n()