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=-7.6 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 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 76D4BC43461 for ; Fri, 11 Sep 2020 11:42:59 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 190E521D79 for ; Fri, 11 Sep 2020 11:42:58 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="aKUfGlDZ" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725783AbgIKLmw (ORCPT ); Fri, 11 Sep 2020 07:42:52 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55322 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725779AbgIKLm3 (ORCPT ); Fri, 11 Sep 2020 07:42:29 -0400 Received: from mail-wm1-x342.google.com (mail-wm1-x342.google.com [IPv6:2a00:1450:4864:20::342]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5CF22C061757 for ; Fri, 11 Sep 2020 04:42:28 -0700 (PDT) Received: by mail-wm1-x342.google.com with SMTP id s13so4139624wmh.4 for ; Fri, 11 Sep 2020 04:42:28 -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=HKWhX36ND8UY6ly4qcDo3pMPWXTyMefHR44TJDlOz1s=; b=aKUfGlDZllAd9O6gbjL5hapkCZncVlDt1rOFQahKuvw3D0O4z2taYRv7nPaPGMVP1/ VlCwOwiFIveBfk5bVivtXPCSntStV6OUTa2dEizSeLa1YrlrbELJH6pROX6ptMx6j4Sh 5+ieoEaNNvuie4uURvwKi5gM7I+h4IpV9N3m9f7+w6CoP2kXQ+fAx+EXDfTFWcCuV1+H HHa+FzfX2cogIuQmsf/ZUvcrgbRoIH40iz1WBPlEwlhJHmUkWzPl4etpxPGpzpAxnkyH NS8XnYW6l31RrKrEirqFk5x3LWhXGaSsFk8e0KqTBa83K7Q7GgDQMaJb3JgM7VCZLv1i OcOQ== 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=HKWhX36ND8UY6ly4qcDo3pMPWXTyMefHR44TJDlOz1s=; b=lgVOjUhXzo1/o87h0uPECSvxs2PS5qJ6Ju8PQz4heG6m0C0Sfdv7s8xLWbFw/gxwgw oypaz562VXu4d9i2trruolvR+YgyT6tzleZQFZ6avCwx7mdAiGaDIqf+Pd7mm7h1gipC BgfEaInKF2V6YJ3V++O2STRy0/VuvJQ+caK2hTGINyanBfoKbL2XRgV+yLnA3AZLTNbp wtOnyYLphHx3BG2lDn/crIYgu03UrfzUvS1qRJkHpNZ691ycVgQCp1nK87XuEHArVvas C9xghEq3/+QwJidDmdyiTc3/uwjLnSR/himV//UEULD5UXhacI1NSm0+kBDdYq4INomk hngQ== X-Gm-Message-State: AOAM532ShINGwg9sL34BLbpClLQI/fCOJyBnstOT4FAj7Iy17ir0ePyY r9S0r4X59bsn+tbN/2ieAj7la7YUHz4= X-Google-Smtp-Source: ABdhPJzd3o7lESeC2M8gtWqphTKQLWi6tsRDl1j5Wt357ONNib2aJ9Oxeis9nl7KcavkIJKLBIhpIw== X-Received: by 2002:a1c:c906:: with SMTP id f6mr1921928wmb.9.1599824546860; Fri, 11 Sep 2020 04:42:26 -0700 (PDT) Received: from [192.168.1.143] ([170.253.60.68]) by smtp.gmail.com with ESMTPSA id 70sm4118472wme.15.2020.09.11.04.42.25 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 11 Sep 2020 04:42:26 -0700 (PDT) Subject: Re: [PATCH 22/24] membarrier.2: Note that glibc does not provide a wrapper To: Jakub Wilk Cc: Michael Kerrisk , linux-man@vger.kernel.org References: <20200910211344.3562-1-colomar.6.4.3@gmail.com> <20200910211344.3562-23-colomar.6.4.3@gmail.com> <20200911093333.blym5ufplu7xzhwx@jwilk.net> From: Alejandro Colomar Message-ID: <70bc7300-0553-d913-48b7-1880b8cb9e27@gmail.com> Date: Fri, 11 Sep 2020 13:42:25 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.12.0 MIME-Version: 1.0 In-Reply-To: <20200911093333.blym5ufplu7xzhwx@jwilk.net> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-man-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-man@vger.kernel.org On 2020-09-11 11:33, Jakub Wilk wrote: > * Alejandro Colomar , 2020-09-10, 23:13: >> I copied .nf and .fi from futex.2, but they made no visual difference. >> What do they actually do? > > .nf disables filling and adjusting; .fi re-enables them: > https://www.gnu.org/software/groff/manual/html_node/Filling-and-Adjusting.html > > https://www.gnu.org/software/groff/manual/html_node/Manipulating-Filling-and-Adjusting.html > > > In membarrier.2's SYNOPSIS section, there's just a single short line in > each paragraph, so it makes no difference. > > It does make a difference in futex.2. > Thanks, Jakub. Cheers, Alex