virtio: fix typos of memory barriers

Note: this fixes a bug introduced recently in 7b21e34. Signed-off-by: Jason Wang <[email protected]> Acked-by: Michael S. Tsirkin <[email protected]> Signed-off-by: Rusty Russell <[email protected]>
maurer · Jan 27, 2012 · 4dbc5d9 · 4dbc5d9
1 parent 74ea15d
commit 4dbc5d9
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c
@@ -35,7 +35,7 @@
 #define virtio_rmb(vq) \
 	do { if ((vq)->weak_barriers) smp_rmb(); else rmb(); } while(0)
 #define virtio_wmb(vq) \
-	do { if ((vq)->weak_barriers) smp_rmb(); else rmb(); } while(0)
+	do { if ((vq)->weak_barriers) smp_wmb(); else wmb(); } while(0)
 #else
 /* We must force memory ordering even if guest is UP since host could be
  * running on another CPU, but SMP barriers are defined to barrier() in that