From patchwork Sat Nov 5 03:23:29 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Zorro Lang X-Patchwork-Id: 13032815 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 794FAC433FE for ; Sat, 5 Nov 2022 03:23:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229555AbiKEDXg (ORCPT ); Fri, 4 Nov 2022 23:23:36 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33416 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229459AbiKEDXf (ORCPT ); Fri, 4 Nov 2022 23:23:35 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 560B82BB3D; Fri, 4 Nov 2022 20:23:34 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id E5E5A6239C; Sat, 5 Nov 2022 03:23:33 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 8AB47C433C1; Sat, 5 Nov 2022 03:23:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1667618613; bh=iFTyhbCLwJZ86uIddXIjd1QI6r33HE0t/l4RhpPte4s=; h=From:To:Cc:Subject:Date:From; b=ZEKrGfzkzsL33SDDGy4SPC34Z/J/aeq27pABFnRUO2oNheYcZOsgnByVm+WbZtohG aIGIryCdyF4P6ucQHLiJxwhc+154p/7XBeQOYjBwvYFqn0LRwPGE6z78lnbHpP8J5F BH6sXODxAJ1XWY1mge0Id+hSM+kjApXpYLVmyekn+wgvJ8KX7I4sooJntWvRj+bBip ZwaHdUyFh/kWvr4oLLvhe5ZaTRhGuwQp6k2/XYtFtc0NHUsF6Rn2/IgkYRtZuZm/4n gX/KEN6iCPE6QCRsjO8lbQJ8t6hK11oPeLDSU0zc+RoOe0qEcRmvjlgkER8V+i5OJo sFdCmjDrZx56g== From: Zorro Lang To: fstests@vger.kernel.org Cc: linux-xfs@vger.kernel.org Subject: [PATCH] nfs: test files written size as expected Date: Sat, 5 Nov 2022 11:23:29 +0800 Message-Id: <20221105032329.2067299-1-zlang@kernel.org> X-Mailer: git-send-email 2.31.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: fstests@vger.kernel.org Test nfs and its underlying fs, make sure file size as expected after writting a file, and the speculative allocation space can be shrunken. Signed-off-by: Zorro Lang --- Hi, The original bug reproducer is: 1. mount nfs3 backed by xfs 2. dd if=/dev/zero of=/nfs/10M bs=1M count=10 3. du -sh /nfs/10M 16M /nfs/10M As this was a xfs issue, so cc linux-xfs@ to get review. Thanks, Zorro tests/nfs/002 | 43 +++++++++++++++++++++++++++++++++++++++++++ tests/nfs/002.out | 2 ++ 2 files changed, 45 insertions(+) create mode 100755 tests/nfs/002 create mode 100644 tests/nfs/002.out diff --git a/tests/nfs/002 b/tests/nfs/002 new file mode 100755 index 00000000..3d29958d --- /dev/null +++ b/tests/nfs/002 @@ -0,0 +1,43 @@ +#! /bin/bash +# SPDX-License-Identifier: GPL-2.0 +# Copyright (c) 2022 Red Hat, Inc. All Rights Reserved. +# +# FS QA Test 002 +# +# Make sure nfs gets expected file size after writting a big sized file. It's +# not only testing nfs, test its underlying fs too. For example a known old bug +# on xfs (underlying fs) caused nfs get larger file size (e.g. 16M) after +# writting 10M data to a file. It's fixed by a series of patches around +# 579b62faa5fb16 ("xfs: add background scanning to clear eofblocks inodes") +# +. ./common/preamble +_begin_fstest auto rw + +# real QA test starts here +_supported_fs nfs +_require_test + +localfile=$TEST_DIR/testfile.$seq +rm -rf $localfile + +$XFS_IO_PROG -f -t -c "pwrite 0 10m" -c "fsync" $localfile >>$seqres.full 2>&1 +block_size=`stat -c '%B' $localfile` +iblocks_expected=$((10 * 1024 * 1024 / $block_size)) +# Try several times for the speculative allocated file size can be shrunken +res=1 +for ((i=0; i<10; i++));do + iblocks_real=`stat -c '%b' $localfile` + if [ "$iblocks_expected" = "$iblocks_real" ];then + res=0 + break + fi + sleep 10 +done +if [ $res -ne 0 ];then + echo "Write $iblocks_expected blocks, but get $iblocks_real blocks" +fi + +echo "Silence is golden" +# success, all done +status=0 +exit diff --git a/tests/nfs/002.out b/tests/nfs/002.out new file mode 100644 index 00000000..61705c7c --- /dev/null +++ b/tests/nfs/002.out @@ -0,0 +1,2 @@ +QA output created by 002 +Silence is golden