Enable atomic swap and store macro with acquire and release ordering

[vpp.git] / src / vnet / devices / virtio / vhost_user_input.c

diff --git a/src/vnet/devices/virtio/vhost_user_input.c b/src/vnet/devices/virtio/vhost_user_input.c
index 291d687..8e88695 100644 (file)
--- 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);