Received: by 2002:a25:6193:0:0:0:0:0 with SMTP id v141csp2854371ybb; Mon, 30 Mar 2020 14:29:38 -0700 (PDT) X-Google-Smtp-Source: ADFU+vttpdnMxwD1DO2AnGIMl94O7PGcGlbobwt+Ot8Fa6QE1O5wMx9HdZHSmKAj1kfpvGWhZga2 X-Received: by 2002:a4a:c315:: with SMTP id c21mr2367715ooq.13.1585603778046; Mon, 30 Mar 2020 14:29:38 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1585603778; cv=none; d=google.com; s=arc-20160816; b=ucVi1I7B3tOjcFV0R1ZiJb/Mdfg4u/rCHZeNnMh0E6YEJX0DHpwTzg4wZeUS/+HgAj rz9TF64pvoJJ8IJF+7DbHJLnVBpUQuQaOc4M/cynHu+dSsgCFY3WgaX7rSMWr9zC4kp1 I80IiR5CEB1GkSAtaOS/8WvOYsSO9ZoLmmJP1PgkaknQCIsmXeN1z9gI4dRLqE0sdN3A GMMNqF+u9EFRY8WnQdnUzpXXsYr0h4tBOwzPwsybkItzG8gwtn9hESJIk37p2oTwCIZ0 kf/XDwsscm2ep+Vd3FwGrwp/nR5pB3aL4WTiLdAOwMkY95iDdn4hGbIkIz1WzZj0lLtY G49A== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:mime-version:message-id:date:references :in-reply-to:subject:cc:to:from; bh=5rFtx0w6Rf8JGyh37gN1S/MiczIitpCS6WSeIxjtcgU=; b=n/FMSj0ARA3QlAzWxgCAdBRyEqmmNsoQXknEGM3jlYgmOFgUiqeYtACoXOHcJABRGb pvztnZqMofrzynyfBeMsbqMqLUPH7dZlviH895CnskCrpjyEDDLvRsRtsuGTpkyEk669 WL5Yjhr2uDoc8mlw5RqtU7jRODY3oF0ISVX/wHMMFxz/avM+g+fRYRvnbA2O0Mg+DkPI S8CnoC34C2sm76oC2QpjJzdnu/EdNTB2C425quocX93yJdEEB48gMPIyIMr/j+YNrnRR 2gbFkE0Yg0Bfs4tVjGTtztOVsbynh9IX6p9WgOcbYMXi0b2GvmcX8oq1I2uakPXNyv0X 5GRA== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id r29si7020666oth.324.2020.03.30.14.29.25; Mon, 30 Mar 2020 14:29:38 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728880AbgC3V3F (ORCPT + 99 others); Mon, 30 Mar 2020 17:29:05 -0400 Received: from Galois.linutronix.de ([193.142.43.55]:59801 "EHLO Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728715AbgC3V3F (ORCPT ); Mon, 30 Mar 2020 17:29:05 -0400 Received: from p5de0bf0b.dip0.t-ipconnect.de ([93.224.191.11] helo=nanos.tec.linutronix.de) by Galois.linutronix.de with esmtpsa (TLS1.2:DHE_RSA_AES_256_CBC_SHA256:256) (Exim 4.80) (envelope-from ) id 1jJ1xv-0006Am-UG; Mon, 30 Mar 2020 23:29:04 +0200 Received: by nanos.tec.linutronix.de (Postfix, from userid 1000) id 56365101175; Mon, 30 Mar 2020 23:29:02 +0200 (CEST) From: Thomas Gleixner To: "Michael Kerrisk \(man-pages\)" , "devi R.K" Cc: mtk.manpages@gmail.com, linux-man@vger.kernel.org, lkml , arul.jeniston@gmail.com Subject: Re: [PATCH] timerfd_create.2: Included return value 0 In-Reply-To: References: <55aa30be-5894-ae52-ffd4-5f2a82aa5ad5@gmail.com> <3cbd0919-c82a-cb21-c10f-0498433ba5d1@gmail.com> <87a73ywzbv.fsf@nanos.tec.linutronix.de> Date: Mon, 30 Mar 2020 23:29:02 +0200 Message-ID: <87wo71v8f5.fsf@nanos.tec.linutronix.de> MIME-Version: 1.0 Content-Type: text/plain X-Linutronix-Spam-Score: -1.0 X-Linutronix-Spam-Level: - X-Linutronix-Spam-Status: No , -1.0 points, 5.0 required, ALL_TRUSTED=-1,SHORTCIRCUIT=-0.0001 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Micheal, "Michael Kerrisk (man-pages)" writes: > On 3/30/20 12:50 AM, Thomas Gleixner wrote: >> That's the reason why I rejected the attempt to mitigate that particular >> 0 tick issue in timerfd as it would just scratch a particular itch but >> still not provide any guarantee. So having the '0' return documented is >> the right way to go. > > Thanks for the incredibly detailed follow-up Thomas (which all > landed in my commit message). I've applied a patch almost exactly > the same as the text I showed above (and it's pushed to Git). "timerfd_create.2: Negetive..." That first word after the colon looks weird :) >> All of 2020 is a bust, I expect. Perhaps we see us at a conference > in 2021 ;-). Let's see how that evolves and in the worst case we can meet for a beer once we gained antibodies one way or the other. For now let's stay safe and all I can offer is a virtual 'Prosit' :) Thanks, tglx