From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: ** X-Spam-Status: No, score=2.5 required=3.0 tests=BAYES_00,DKIM_ADSP_CUSTOM_MED, DKIM_INVALID,DKIM_SIGNED,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,HTML_MESSAGE,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id DD889C433ED for ; Fri, 2 Apr 2021 14:45:14 +0000 (UTC) Received: from shelob.surriel.com (shelob.surriel.com [96.67.55.147]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 6C8AB6100C for ; Fri, 2 Apr 2021 14:45:14 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 6C8AB6100C Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=kernelnewbies-bounces@kernelnewbies.org Received: from localhost ([::1] helo=shelob.surriel.com) by shelob.surriel.com with esmtp (Exim 4.94) (envelope-from ) id 1lSL2k-0003ue-Ap; Fri, 02 Apr 2021 10:45:02 -0400 Received: from mail-vs1-xe2d.google.com ([2607:f8b0:4864:20::e2d]) by shelob.surriel.com with esmtps (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 (Exim 4.94) (envelope-from ) id 1lSL2i-0003uN-3A for kernelnewbies@kernelnewbies.org; Fri, 02 Apr 2021 10:45:00 -0400 Received: by mail-vs1-xe2d.google.com with SMTP id u29so2853786vsi.12 for ; Fri, 02 Apr 2021 07:44:59 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:from:date:message-id:subject:to; bh=xbq0+8U8GBjTTtgiupfLnZEGnq0LdDnx7yfMwdZIQA0=; b=Sg6KDMgWeSqHT5jqxjtpJCLw3OTv4Hw9OLUOwEuIzE9KSCsADIQZljcFixMtJaxwmk Qp+qd5sOKnH/LtK3jNmkQiUTUQ5VQIYUsSZRyULwbOdYqh0cGQI5Xaz8mh2bRY+lM0jj kHbvispDHhtQ26Jt29BxsUgwJ0G0GsEyxtyfwAyVFUtYycwUpUI2Q1rNvWPcwd14YSWb fnt6MYnKnjXAmS1Zm6VnLI8OMvSMshTfTQC/LFNnIrCQueCmK6m1uIfmXgBLHrO/L3c3 RYkz9clmAvmTtcRTwVTmwoLKwom+Ubd21pIxGXp/ci+txMtqzgu6kZ2AaNPLNihXx9pX bh+Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:from:date:message-id:subject:to; bh=xbq0+8U8GBjTTtgiupfLnZEGnq0LdDnx7yfMwdZIQA0=; b=P3HZzonp2fJnDbk5a/4HUVpl8l+7MH0NQyp/RCduQVLT8bAX1gWfbEvUEgD5Ak+IYD ZCtU6wb1zn85NN0+MVntj8ghDh5aXVCZ0FrEK5sZGsVoJYk/qqIgXvGnjaaNE55P96m8 JfjlJC3KpJFAbByBP08nJhpxl3m728obWJRZW/tC/Btet26SyUSHIT8Y4zv8SIBV02zu s/1965MUhg3gAnCQo/RXfEA45+ECDfTR0koLKAJrWyc5ah+DU7yOH55UI/4OU6c1qfVw UcoCXjBjvcw+m0TNxspEMy1Ke2Erp15I29q0f1TnXTS/JN6OXUqxFORFEuD37RIgNxXf q8VA== X-Gm-Message-State: AOAM530W00R8Acb7MpAmPXZuS58C/EtBMLhQVHxxTFkMPA5qOPXfcwmZ lWR5ZZAN/smUdkJgV24nsisIi2yhqA9XeAZe84bXvNW2 X-Google-Smtp-Source: ABdhPJz0RKOhQ0d2aPw1lP8didkYod63CZZgcwTBMFaBKSY9nzHuNueuZvd15yh0/7iu+r+Sp5d3w+XF50zSfISNr90= X-Received: by 2002:a67:2c45:: with SMTP id s66mr9194631vss.12.1617374699015; Fri, 02 Apr 2021 07:44:59 -0700 (PDT) MIME-Version: 1.0 From: Navin P Date: Fri, 2 Apr 2021 20:15:12 +0530 Message-ID: Subject: memory order seq cst for atomics To: kernelnewbies X-BeenThere: kernelnewbies@kernelnewbies.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Learn about the Linux kernel List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============1583218374462047549==" Errors-To: kernelnewbies-bounces@kernelnewbies.org --===============1583218374462047549== Content-Type: multipart/alternative; boundary="0000000000006752e105befe64ef" --0000000000006752e105befe64ef Content-Type: text/plain; charset="UTF-8" Hi, C11 and c++11 have memory order like memory_order_seq_cst .What is the equivalent in Linux kernel ? atomic64_inc(&var) ; __SMP_mb(); Regards, Navin --0000000000006752e105befe64ef Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Hi,
=C2=A0 C11 and c++11 =C2=A0have memo= ry order like memory_order_seq_cst .What is the equivalent in Linux kernel = ?=C2=A0
atomic64_inc(&var) ;
__SMP_mb();

Regards,=
Navin

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