used_event        457 drivers/vhost/vringh.c 	u16 used_event;
used_event        478 drivers/vhost/vringh.c 	err = getu16(vrh, &used_event, &vring_used_event(&vrh->vring));
used_event        489 drivers/vhost/vringh.c 		notify = vring_need_event(used_event,