Avoid atomic ops when polling queues

Change-Id: I31c6a0a1d11b5b12d8a5c32c29fea9618b1a53d4
Signed-off-by: Dave Barach <dave@barachs.net>

diff --git a/src/vnet/devices/devices.h b/src/vnet/devices/devices.h
index c303cb6..ac5be22 100644 (file)
--- a/src/vnet/devices/devices.h
+++ b/src/vnet/devices/devices.h
@@ -153,10 +153,11 @@ vnet_device_input_set_interrupt_pending (vnet_main_t * vnm, u32 hw_if_index,
   vlib_node_set_interrupt_pending (vm, hw->input_node_index);
 }
 
-#define foreach_device_and_queue(var,vec) \
-  for (var = (vec); var < vec_end (vec); var++)                        \
-    if (clib_smp_swap (&((var)->interrupt_pending), 0) ||      \
-       var->mode == VNET_HW_INTERFACE_RX_MODE_POLLING)
+#define foreach_device_and_queue(var,vec)                       \
+  for (var = (vec); var < vec_end (vec); var++)                 \
+    if ((var->mode == VNET_HW_INTERFACE_RX_MODE_POLLING)        \
+        || clib_smp_swap (&((var)->interrupt_pending), 0))
+
 
 #endif /* included_vnet_vnet_device_h */