From f25e7cfa5c615e1972d5823b65ca579f951d68a5 Mon Sep 17 00:00:00 2001
From: jaszha03 <jason.zhang2@arm.com>
Date: Wed, 12 Jun 2019 16:01:19 -0500
Subject: vppinfra: refactor use of CLIB_MEMORY_BARRIER ()

All instances of test_and_set locks used the following sequence
to release the locks:

CLIB_MEMORY_BARRIER ();
p->lock = 0; // p is a generic struct with a TAS lock

Use clib_atomic_release to generate more efficient assembly code.

Type: refactor

Change-Id: Idca3a38b1cf43578108bdd1afe83b6ebc17a4c68
Signed-off-by: Jason Zhang <jason.zhang2@arm.com>
Reviewed-by: Honnappa Nagarahalli <honnappa.nagarahalli@arm.com>
Reviewed-by: Lijian Zhang <Lijian.Zhang@arm.com>
---
 src/vppinfra/elog.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

(limited to 'src/vppinfra/elog.c')

diff --git a/src/vppinfra/elog.c b/src/vppinfra/elog.c
index 489ccf436d9..caddf6f3757 100644
--- a/src/vppinfra/elog.c
+++ b/src/vppinfra/elog.c
@@ -56,8 +56,7 @@ elog_unlock (elog_main_t * em)
 {
   if (PREDICT_FALSE (em->lock != 0))
     {
-      CLIB_MEMORY_BARRIER ();
-      *em->lock = 0;
+      clib_atomic_release (em->lock);
     }
 }
 
-- 
cgit 1.2.3-korg