From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id 76972A0C45; Wed, 20 Oct 2021 05:03:51 +0200 (CEST) Received: from [217.70.189.124] (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 9D89D41153; Wed, 20 Oct 2021 05:03:49 +0200 (CEST) Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by mails.dpdk.org (Postfix) with ESMTP id 0AB5F41148 for ; Wed, 20 Oct 2021 05:03:48 +0200 (CEST) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 7DDA0ED1; Tue, 19 Oct 2021 20:03:47 -0700 (PDT) Received: from net-x86-dell-8268.shanghai.arm.com (net-x86-dell-8268.shanghai.arm.com [10.169.210.103]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id DF4B23F694; Tue, 19 Oct 2021 20:03:45 -0700 (PDT) From: Feifei Wang To: Cc: dev@dpdk.org, nd@arm.com, Feifei Wang , Ruifeng Wang Date: Wed, 20 Oct 2021 11:03:34 +0800 Message-Id: <20211020030335.973360-2-feifei.wang2@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20211020030335.973360-1-feifei.wang2@arm.com> References: <20210825080127.495645-1-feifei.wang2@arm.com> <20211020030335.973360-1-feifei.wang2@arm.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: [dpdk-dev] [PATCH v2 1/2] eal/common: use wait until equal API for tight loop X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" Instead of polling for mcfg->magic to be updated, use wait_until_equal API. Signed-off-by: Feifei Wang Reviewed-by: Ruifeng Wang --- lib/eal/common/eal_common_mcfg.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/lib/eal/common/eal_common_mcfg.c b/lib/eal/common/eal_common_mcfg.c index c77ba97a9f..cf4a279905 100644 --- a/lib/eal/common/eal_common_mcfg.c +++ b/lib/eal/common/eal_common_mcfg.c @@ -30,8 +30,7 @@ eal_mcfg_wait_complete(void) struct rte_mem_config *mcfg = rte_eal_get_configuration()->mem_config; /* wait until shared mem_config finish initialising */ - while (mcfg->magic != RTE_MAGIC) - rte_pause(); + rte_wait_until_equal_32(&mcfg->magic, RTE_MAGIC, __ATOMIC_RELAXED); } int -- 2.25.1