X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=src%2Fvnet%2Fdevices%2Fvirtio%2Fvhost_user_input.c;h=8e88695957b588d8b4f6435d00fb9acf587af2b4;hb=5b718d5cf8bd8df82e37825e0cdb6f986d9a784a;hp=291d687ab6ad76375d8282b2136bc95076f27957;hpb=86327be9751ad54cb24d16c161cacb001dc20772;p=vpp.git

diff --git a/src/vnet/devices/virtio/vhost_user_input.c b/src/vnet/devices/virtio/vhost_user_input.c
index 291d687ab6a..8e88695957b 100644
--- a/src/vnet/devices/virtio/vhost_user_input.c
+++ b/src/vnet/devices/virtio/vhost_user_input.c
@@ -641,8 +641,8 @@ VLIB_NODE_FN (vhost_user_input_node) (vlib_main_t * vm,
 
   vec_foreach (dq, rt->devices_and_queues)
   {
-    if (clib_smp_swap (&dq->interrupt_pending, 0) ||
-	(node->state == VLIB_NODE_STATE_POLLING))
+    if ((node->state == VLIB_NODE_STATE_POLLING) ||
+	clib_atomic_swap_acq_n (&dq->interrupt_pending, 0))
       {
 	vui =
 	  pool_elt_at_index (vum->vhost_user_interfaces, dq->dev_instance);