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=-0.6 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS autolearn=ham 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 7CA2EC46475 for ; Tue, 23 Oct 2018 16:10:50 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 32A4F20665 for ; Tue, 23 Oct 2018 16:10:50 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="H1p2xgpJ" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 32A4F20665 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728391AbeJXAet (ORCPT ); Tue, 23 Oct 2018 20:34:49 -0400 Received: from mail-pl1-f196.google.com ([209.85.214.196]:38040 "EHLO mail-pl1-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726970AbeJXAet (ORCPT ); Tue, 23 Oct 2018 20:34:49 -0400 Received: by mail-pl1-f196.google.com with SMTP id p7-v6so861963plk.5; Tue, 23 Oct 2018 09:10:48 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=subject:to:cc:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=XopQWpUn3r3x0zxHb7arPLfIlwDzk8qREyRleyVHv94=; b=H1p2xgpJNhy8jplF+wEgLd4AJnvfF/7Nrh8Ve/mkVh0Ghzaw+xyAjENbB57SonncT9 FnMttezKzu6MIMt81U9TrJxJxzO78JMJWlCTuZ7X1Ba4/qsCx7qk86Zqkryk5KIyPMJM cWWdDyYtE/DYM1uU2M9iFZDjh8z9jDK6uxDHl34nBykW5Yblu1mZauDgx1cRFrtKvwdq vM4CCnpacsFFkJ6UVBCixordRv70i4K8GZlxUgQ4A0VyqWfyfUPO+CZJDhf4bLWoBkXZ nzREiQNoxPjDn5RZm91uNEzRKNHumCooRMARiZNHtg8Qn4VLPumcbiCpc2Nau8LHAQ3V UZjg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=XopQWpUn3r3x0zxHb7arPLfIlwDzk8qREyRleyVHv94=; b=tFx2WGnu4L2TCGB8/lG6mpW3KMQ4snElWoBDtr1qNr7IQDBktM6zhRUotuHHRRrsm4 68drSqFRXmGhzVMUolj/PY5U7o9YgZC3sT1msth+uetstYLeN2rFmKH58GiGbHuf7vLU EP3YhJSpwcOzSiFOCE6LL4otg4lZ44FKrKKAJysmb8F2Ny4/SBxO0iTxVjtv62J4mcHd QaJifexudEXVp8g7oL0en1S0QMBccxNAjio3vFRkZmpABAL6suyne833sF4UYbe6KjL2 HdhZgKtcQzwuJ61JqCKqDx6ziPyrhXq843IQf56tVc9VudcvV0Q5IZWM4StZP0mhJ8BO EuIQ== X-Gm-Message-State: ABuFfojVillOgiBslkb5Drg8JR8B2WnAmoXgSVfc77cWeAAJgLvYFAUt 2Ri3a/s4HVV06L4Uusy33qLRa1mF X-Google-Smtp-Source: ACcGV62FqFdPb8pimLrzOoBdDiQszyVu/Wwb/XL2liJAtjjSV/a7mpiwLvb9DO7Ao/DFCDPmAbS2Kw== X-Received: by 2002:a17:902:603:: with SMTP id 3-v6mr17031327plg.252.1540311047772; Tue, 23 Oct 2018 09:10:47 -0700 (PDT) Received: from ?IPv6:2620:15c:2c1:200:55c7:81e6:c7d8:94b? ([2620:15c:2c1:200:55c7:81e6:c7d8:94b]) by smtp.gmail.com with ESMTPSA id 28-v6sm2832848pgm.27.2018.10.23.09.10.45 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 23 Oct 2018 09:10:45 -0700 (PDT) Subject: Re: [PATCH] bonding:avoid repeated display of same link status change To: =?UTF-8?B?TWFoZXNoIEJhbmRld2FyICjgpK7gpLngpYfgpLYg4KSs4KSC4KSh4KWH4KS1?= =?UTF-8?B?4KS+4KSwKQ==?= , mk.singh@oracle.com Cc: linux-netdev , Jay Vosburgh , Veaceslav Falico , Andy Gospodarek , "David S. Miller" , linux-kernel@vger.kernel.org References: <20181023152924.24033-1-mk.singh@oracle.com> From: Eric Dumazet Message-ID: <65f98009-1ce0-d6fd-06dc-233aa115abc9@gmail.com> Date: Tue, 23 Oct 2018 09:10:44 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.9.1 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 10/23/2018 08:54 AM, Mahesh Bandewar (महेश बंडेवार) wrote: > Atomic operations are expensive (on certain architectures) and miimon > runs quite frequently. Is the added cost of these atomic operations > even worth just to avoid *duplicate info* messages? This seems like a > overkill! atomic_read() is a simple read, no atomic operation involved. Same remark for atomic_set()