repository: C:/dev/kvm-guest-drivers-windows
branch: master
commit b68b7671ab3dd07f7f16e819db2d4060bbaeb901
Author: Yan Vugenfirer <[email protected]>
Date: Sun Nov 1 15:23:20 2009 +0200
[WIN-GUEST-DRIVERS] viostor driver.Add memory read barrier - synch with fix
for Linux guests by Michael S. Tsirkin<[email protected]>
Signed-off-by: Vadim Rozenfeld<[email protected]>
diff --git a/viostor/virtio_ring.c b/viostor/virtio_ring.c
index d099bb8..2911cef 100644
--- a/viostor/virtio_ring.c
+++ b/viostor/virtio_ring.c
@@ -237,6 +237,8 @@ vring_get_buf(
return NULL;
}
+ 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;
--
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