---

yaml --- r: 167919 b: refs/heads/master c: 2d61ba9 h: refs/heads/master i: 167917: 61ced6b 167915: fbaac7a 167911: 560f14b 167903: 986b4ec v: v3
git-mirror · Oct 28, 2009 · 25280cf · 25280cf
1 parent 798a85b
commit 25280cf
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Showing 2 changed files with 4 additions and 1 deletion.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 0b22bd0ba0d500ab40e7673c591c594ec5447342
+refs/heads/master: 2d61ba95034f1abbdec7729d52c740870a5eddb6
diff --git a/trunk/drivers/virtio/virtio_ring.c b/trunk/drivers/virtio/virtio_ring.c
@@ -285,6 +285,9 @@ static void *vring_get_buf(struct virtqueue *_vq, unsigned int *len)
 		return NULL;
 	}
 
+	/* Only get used array entries after they have been exposed by host. */
+	rmb();
+
 	i = vq->vring.used->ring[vq->last_used_idx%vq->vring.num].id;
 	*len = vq->vring.used->ring[vq->last_used_idx%vq->vring.num].len;