From b6fcf6604579a997a8cb75e507cfc58c91d5df9f Mon Sep 17 00:00:00 2001 From: Jason Wang Date: Fri, 20 Jan 2012 16:17:08 +0800 Subject: [PATCH] --- yaml --- r: 286945 b: refs/heads/master c: a72caae21803b74e04e2afda5e035f149d4ea118 h: refs/heads/master i: 286943: 655a7f6c2441c69fa955e955e9e723a137abd9ea v: v3 --- [refs] | 2 +- trunk/drivers/virtio/virtio_ring.c | 6 +++--- 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/[refs] b/[refs] index a2e7aeac54fd..d31eca410b21 100644 --- a/[refs] +++ b/[refs] @@ -1,2 +1,2 @@ --- -refs/heads/master: 4dbc5d9f4f791df8a5879f4a655f517adc7f56d1 +refs/heads/master: a72caae21803b74e04e2afda5e035f149d4ea118 diff --git a/trunk/drivers/virtio/virtio_ring.c b/trunk/drivers/virtio/virtio_ring.c index 78428a863b46..5aa43c3392a2 100644 --- a/trunk/drivers/virtio/virtio_ring.c +++ b/trunk/drivers/virtio/virtio_ring.c @@ -308,9 +308,9 @@ bool virtqueue_kick_prepare(struct virtqueue *_vq) bool needs_kick; START_USE(vq); - /* Descriptors and available array need to be set before we expose the - * new available array entries. */ - virtio_wmb(vq); + /* We need to expose available array entries before checking avail + * event. */ + virtio_mb(vq); old = vq->vring.avail->idx - vq->num_added; new = vq->vring.avail->idx;