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=-8.2 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 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 A0BFBC3F68F for ; Mon, 30 Dec 2019 18:55:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 7827C2071E for ; Mon, 30 Dec 2019 18:55:11 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="T6AA3Yq/" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727611AbfL3SzL (ORCPT ); Mon, 30 Dec 2019 13:55:11 -0500 Received: from mail-pg1-f195.google.com ([209.85.215.195]:36457 "EHLO mail-pg1-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727278AbfL3SzK (ORCPT ); Mon, 30 Dec 2019 13:55:10 -0500 Received: by mail-pg1-f195.google.com with SMTP id k3so18416989pgc.3; Mon, 30 Dec 2019 10:55:10 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=cc:subject:to:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=JdJt+MkTze/hUL4TVQW3KhBaiLuTd3kBvUR3FwEU5Qw=; b=T6AA3Yq/E4xHEiE7UOJsSe1KBwiqHKjsKD3ArwTMGiohKMNoVDMofdNq01gXlwH34r T9XC5fOv6Nj+jsRWl/vRe/kOmd0Q0Hvlg7Iw6wUEh4xZsM1YHHt7FcJif9vPKTsV36jL lYERwYnk3pfk12AySePtOfArgV+PUQjhBeFvtd1DLNfclobWTW4UxjK5UTJmy/toxQuw oklCnQQ1j8Y9F/jrT/NEOS30MnrISV+pqYyzq6InronTrTowXdos+KxnZV9yKUWYJqOs 7eyOd6OceiJWsNOJs0j9EgZGZUAIaXhqZLmhmJAWmaPwleHjiMqHFV1Q1Rmpf3SpBsVR kx4Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:cc:subject:to:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=JdJt+MkTze/hUL4TVQW3KhBaiLuTd3kBvUR3FwEU5Qw=; b=aHXSi4LEWjWLln9sFvFIf4XD3F6EZg2bHhRtb63DTQEm72R87NVdeUo5ZYzfmmluDv wNRm1axUQ/p6R7CvocE+jHGTgtC377Lhxtt0QsA9+EeUYlJPih6v/sZTcSNcrLvxOoPx SVSl+Pmns0aLx66e2hXtKaPrDyEy4BOwJ+mmKONRXz1zG9p14wVl7dKHFAQO+RUamPGI uqOrCAwmX4aPuguqwEd32ZUpHOBfgkO1y0MZA5k0CGwu8YasZRdtfjyEUrw1qVpzJLfh BIX7LygcpdT0yqU7zh83EIIJlmLocdqv9hhxqkrONMevw4mzyNPnO3XJfs5ADga4mdQi pdZg== X-Gm-Message-State: APjAAAU6m23dxYWZSkEX/e1bPOcIaODzq9sfCPBM4SgKcIX2UiSwjS7k xf5YaHr6SoiBlzQ4Tjhy+SU= X-Google-Smtp-Source: APXvYqw/u/vrkEjBsO4sYGwrIEsbNFY8YSrXJiBBJg43B8OEOUKe0HXjYIYafjiDENaioXycrkGe+A== X-Received: by 2002:a62:788a:: with SMTP id t132mr73222512pfc.134.1577732109926; Mon, 30 Dec 2019 10:55:09 -0800 (PST) Received: from [192.168.178.94] ([121.98.29.40]) by smtp.gmail.com with ESMTPSA id y7sm44922524pfb.139.2019.12.30.10.55.04 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 30 Dec 2019 10:55:08 -0800 (PST) Cc: mtk.manpages@gmail.com, linux-man@vger.kernel.org, Andrew Morton , Christopher Lameter , linux-api@vger.kernel.org, LKML , linux-mm@kvack.org, Michal Hocko , Brice Goglin , Yang Shi Subject: Re: [PATCH] move_pages.2: remove ENOENT from the list of possible return values To: John Hubbard References: <20191219051347.1278026-1-jhubbard@nvidia.com> From: "Michael Kerrisk (man-pages)" Message-ID: <56530a26-e5b4-1441-521b-8dc6580f90c7@gmail.com> Date: Mon, 30 Dec 2019 19:55:00 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.3.1 MIME-Version: 1.0 In-Reply-To: <20191219051347.1278026-1-jhubbard@nvidia.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello John, On 12/19/19 6:13 AM, John Hubbard wrote: > Linux kernel commit e78bbfa82624 ("mm: stop returning -ENOENT from > sys_move_pages() if nothing got migrated") had the effect of *never* > returning -ENOENT, in any situation. So we need to update the man page > to reflect that ENOENT is not a possible return value. > > Acked-by: Michal Hocko > Cc: Brice Goglin > Cc: Yang Shi > Cc: Christoph Lameter > Signed-off-by: John Hubbard > --- > > Hi, > > This fix for the man page was ACK'd by Michal, here: > > https://lore.kernel.org/r/20191218101711.GB21485@dhcp22.suse.cz Thanks. Patch applied. Cheers, Michael > man2/move_pages.2 | 6 ------ > 1 file changed, 6 deletions(-) > > diff --git a/man2/move_pages.2 b/man2/move_pages.2 > index 2d96468fa..1bf1053f2 100644 > --- a/man2/move_pages.2 > +++ b/man2/move_pages.2 > @@ -191,12 +191,6 @@ was specified or an attempt was made to migrate pages of a kernel thread. > .B ENODEV > One of the target nodes is not online. > .TP > -.B ENOENT > -No pages were found that require moving. > -All pages are either already > -on the target node, not present, had an invalid address or could not be > -moved because they were mapped by multiple processes. > -.TP > .B EPERM > The caller specified > .B MPOL_MF_MOVE_ALL > -- Michael Kerrisk Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/ Linux/UNIX System Programming Training: http://man7.org/training/