From a7f7e8639fb8453082330fe3241b051c0372573d Mon Sep 17 00:00:00 2001
From: Richael Zhuang <richael.zhuang@arm.com>
Date: Mon, 29 Jul 2019 14:05:59 +0800
Subject: [PATCH] env_dpdk: upgrade to C11 atomics

Replace legacy __sync builtins with C11 __atomic ones to leverage fine
memory order controlling.

Signed-off-by: Richael Zhuang <richael.zhuang@arm.com>
Change-Id: Ie799889dccba88551516b1c15452392ba5a5dae5
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/463459
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Yibo Cai <yibo.cai@arm.com>
Reviewed-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
---
 lib/env_dpdk/env.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/env_dpdk/env.c b/lib/env_dpdk/env.c
index 17d886a08..e808fae45 100644
--- a/lib/env_dpdk/env.c
+++ b/lib/env_dpdk/env.c
@@ -397,7 +397,7 @@ spdk_ring_create(enum spdk_ring_type type, size_t count, int socket_id)
 	}
 
 	snprintf(ring_name, sizeof(ring_name), "ring_%u_%d",
-		 __sync_fetch_and_add(&ring_num, 1), getpid());
+		 __atomic_fetch_add(&ring_num, 1, __ATOMIC_RELAXED), getpid());
 
 	return (struct spdk_ring *)rte_ring_create(ring_name, count, socket_id, flags);
 }