They are cleaned in vhost_vq_set_backend --- drivers/vhost/vhost.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c index 0395229486a9..882d0df57e24 100644 --- a/drivers/vhost/vhost.c +++ b/drivers/vhost/vhost.c @@ -1579,7 +1579,6 @@ long vhost_vring_ioctl(struct vhost_dev *d, unsigned int ioctl, void __user *arg vq->last_avail_idx = s.num; /* Forget the cached index value. */ vq->avail_idx = vq->last_avail_idx; - vq->ndescs = vq->first_desc = 0; break; case VHOST_GET_VRING_BASE: s.index = idx; -- 2.18.1