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=-9.6 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,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 F2EB2C433E2 for ; Sat, 29 Aug 2020 07:13:33 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B1CBF20738 for ; Sat, 29 Aug 2020 07:13:33 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="hONZkQDP" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726869AbgH2HNc (ORCPT ); Sat, 29 Aug 2020 03:13:32 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41908 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726083AbgH2HNa (ORCPT ); Sat, 29 Aug 2020 03:13:30 -0400 Received: from mail-pl1-x644.google.com (mail-pl1-x644.google.com [IPv6:2607:f8b0:4864:20::644]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E78BDC061236 for ; Sat, 29 Aug 2020 00:13:29 -0700 (PDT) Received: by mail-pl1-x644.google.com with SMTP id k13so677405plk.13 for ; Sat, 29 Aug 2020 00:13:29 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id; bh=Rh4ud5jTmfL5cS/C7dCchIDO5q1+ZBSwil0mqRzvrBQ=; b=hONZkQDPIqwXG3s/MO8aVRxkuNaIEvDvSn0quqaxTt1WEC9e1x7VwhTDkUfhxOdpUs WV1ddj41BrENjiR1ebhsoYjt7JUICzh0FYipgC7VzKVMhY3V+Wd5s9dxsgLvzFFWW/c2 tV5xoudkHa54lS++0fZABmcYWWIIVYea8lH8B+BC1A1gWOiKNY0bNcURbOQMpPEp/PrC UckO52T1ffr0zZqkFVo5RKDMXR3AIESxFwTMcwqTAtofDIC6JlygguoyL7y9vg/3fcL2 49aRSWMvX4fhLzHGxiwa8KgcB/mjYUr8caI53fuNBEsPBIUtS7ARm3TDYBYiXKMM/vHt ZFaQ== 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=Rh4ud5jTmfL5cS/C7dCchIDO5q1+ZBSwil0mqRzvrBQ=; b=FzjF2wo0kCaQMjruB84xNeLCmjpLYQ7agYqdyG7HsYCJbCdOgxmPIU1/TNkFrsLhS0 GWRmXh1XDn4VrzkVNrOsYjvvZnvrFkTR4amaa++3JS+U6L5NtyceCUgxFA08E+gsg09S 9v05L3Et5DiSyXS4SK7+wCMOFvKmq8LYZ6zao/5Aj30/J74qwAuuIP5DZqSGE8PeXAgX q/kg/EVQ24dnzetFuD2Ty1MY4qqFtUZt1DPrDqFrVR8A2i8e3ctQTkr4/Rc7dmgmnscb iGHlP/gdOReK83D9dglxbPvyrPHjIgHqeW1oR54r5tJ0oFYTGfmqM2vbz3J1Q0kHb6jL wQtQ== X-Gm-Message-State: AOAM533+Cd8N5WAEykUr7qn5MPOS6t8UwZBuSt/CCiG9OqHXtAGDgSn5 EfxCksVs4CYxQfuU4XtfEg== X-Google-Smtp-Source: ABdhPJx7g+ttIXoZnc1jLfVygP5yd+wFwv5JzWPQ50sx8JWo0jvLSBv4yxRHDuN6TPlGqndF42L+cw== X-Received: by 2002:a17:902:6f01:: with SMTP id w1mr1906429plk.49.1598685208899; Sat, 29 Aug 2020 00:13:28 -0700 (PDT) Received: from localhost.localdomain ([103.85.228.104]) by smtp.gmail.com with ESMTPSA id e1sm866102pjv.17.2020.08.29.00.13.21 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Sat, 29 Aug 2020 00:13:28 -0700 (PDT) From: milan.opensource@gmail.com To: mtk.manpages@gmail.com Cc: linux-kernel@vger.kernel.org, Milan Shah Subject: [PATCH] fsync.2: ERRORS: add EIO and ENOSPC Date: Sat, 29 Aug 2020 12:43:06 +0530 Message-Id: <1598685186-27499-1-git-send-email-milan.opensource@gmail.com> X-Mailer: git-send-email 2.7.4 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Milan Shah This Fix addresses Bug 194757. Ref: https://bugzilla.kernel.org/show_bug.cgi?id=194757 --- man2/fsync.2 | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/man2/fsync.2 b/man2/fsync.2 index 96401cd..f38b3e4 100644 --- a/man2/fsync.2 +++ b/man2/fsync.2 @@ -186,6 +186,19 @@ In these cases disk caches need to be disabled using or .BR sdparm (8) to guarantee safe operation. + +When +.BR fsync () +or +.BR fdatasync () +returns +.B EIO +or +.B ENOSPC +any error flags on pages in the file mapping are cleared, so subsequent synchronisation attempts +will return without error. It is +.I not +safe to retry synchronisation and assume that a non-error return means prior writes are now on disk. .SH SEE ALSO .BR sync (1), .BR bdflush (2), -- 2.7.4