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=-9.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT 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 B4D1DC3A59F for ; Thu, 29 Aug 2019 10:07:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 8A55D2339E for ; Thu, 29 Aug 2019 10:07:03 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=rasmusvillemoes.dk header.i=@rasmusvillemoes.dk header.b="Cb7bfJXm" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727116AbfH2KHC (ORCPT ); Thu, 29 Aug 2019 06:07:02 -0400 Received: from mail-wr1-f46.google.com ([209.85.221.46]:44402 "EHLO mail-wr1-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727040AbfH2KHB (ORCPT ); Thu, 29 Aug 2019 06:07:01 -0400 Received: by mail-wr1-f46.google.com with SMTP id j11so2746501wrp.11 for ; Thu, 29 Aug 2019 03:07:00 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=rasmusvillemoes.dk; s=google; h=from:to:cc:subject:date:message-id; bh=iQI1xCVoBZXPyvLaHQcdl8AvWdq3dDpI93sRzTyhaCQ=; b=Cb7bfJXmBfQWcwD3W+VVRVcYQhD0TymkhsQv5GW09ANIkrGQ6yCj8mPki6/ij31ShW PRfuWTdA4LJ39H9VUxTygMVWQM+2uRl1SeM/KzF25SVD82h0lfLQqY9KlMDONou/meID dhps8/aWTWEdC4U/+KnG4i4XZdDAfYM1oVkkI= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id; bh=iQI1xCVoBZXPyvLaHQcdl8AvWdq3dDpI93sRzTyhaCQ=; b=GMjUjIUszxQ9gIrhIfytm/+lvjwqkNHOA6fxjYeVPb79KfMkN1rBnHCKvLVaGb7f0Q ObeaFQ2nXQ76XTFBmUBlaQOlP6HyS0sCktHMQTXd/jDd2soifDzX/XAUCIbF7QC+frfS r0fV0ZvNdP2SHJMhz4j7WqP6kGumIfxEvw+Z0K/YxMcWNKHatjAoFam4BW4HrDT4vlcA GyHB6+/8vBvKOhVgBG9bLA9vwmaMceZx68n0ZeRHbErlV1J3IWt+XgbkXV6cmv7JODaS sAGXVdvb2NxPhsUQyVqDIsewZKk+dsNy3XwTbcuLJZrG/MG4Oq5sZ44XBxXkKYmvjTN/ hmgw== X-Gm-Message-State: APjAAAU1Pg6+I+fUgUtmA/8kn4Kucj/Ti2f94MnYfcGtUg/JZxR+Mw1H E9lK2o+/hHVCbRmBFzkUcpiCF9h/YzsOiA== X-Google-Smtp-Source: APXvYqzkmgRufYY5uzwxFm8Ob1wNBrReB8H7rxoTgZoTHOlIqRHmsBgj8+Lhn8snQGFOYpwEmS6SvA== X-Received: by 2002:adf:b1d2:: with SMTP id r18mr10097510wra.237.1567073219374; Thu, 29 Aug 2019 03:06:59 -0700 (PDT) Received: from wildmoose.dk ([2a01:488:66:1000:57e6:57d1:0:1]) by smtp.gmail.com with ESMTPSA id q19sm1095240wra.89.2019.08.29.03.06.58 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 29 Aug 2019 03:06:58 -0700 (PDT) From: Rasmus Villemoes To: Michael Kerrisk Cc: linux-man@vger.kernel.org, Rasmus Villemoes Subject: [PATCH] errno.3: add some comments on EAGAIN/EWOULDBLOCK and EDEADLK/EDEADLOCK Date: Thu, 29 Aug 2019 12:06:21 +0200 Message-Id: <20190829100621.11386-1-rv@rasmusvillemoes.dk> X-Mailer: git-send-email 2.11.0 Sender: linux-man-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-man@vger.kernel.org Signed-off-by: Rasmus Villemoes --- man3/errno.3 | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/man3/errno.3 b/man3/errno.3 index 6cbbafed5..794be7c7b 100644 --- a/man3/errno.3 +++ b/man3/errno.3 @@ -94,7 +94,7 @@ must have distinct values, with the exception of .B EAGAIN and .BR EWOULDBLOCK , -which may be the same. +which may be the same. On Linux, these two always have the same value. .PP The error numbers that correspond to each symbolic name vary across UNIX systems, @@ -240,8 +240,9 @@ Connection reset (POSIX.1-2001). Resource deadlock avoided (POSIX.1-2001). .TP .B EDEADLOCK -Synonym for +On most platforms, a synonym for .BR EDEADLK . +On some (e.g. Linux mips, powerpc, sparc), it is a separate error code "File locking deadlock error". .TP .B EDESTADDRREQ Destination address required (POSIX.1-2001). -- 2.11.0