From patchwork Tue Dec 14 08:19:13 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Shiyang Ruan X-Patchwork-Id: 12675595 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 DE65CC43217 for ; Tue, 14 Dec 2021 08:19:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231795AbhLNITb (ORCPT ); Tue, 14 Dec 2021 03:19:31 -0500 Received: from mail.cn.fujitsu.com ([183.91.158.132]:23835 "EHLO heian.cn.fujitsu.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S231809AbhLNITb (ORCPT ); Tue, 14 Dec 2021 03:19:31 -0500 IronPort-Data: A9a23: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 IronPort-HdrOrdr: A9a23:dcTusqgAms4b8C7HRbCJZm/u83BQXuYji2hC6mlwRA09TyX4rbHLoB1/73LJYVkqNk3I5urrBEDtexLhHP1OkOws1NWZLWrbUQKTRekM0WKI+UyDJ8SRzI5g/JYlW61/Jfm1NlJikPv9iTPSL/8QhPWB74Ck7N2z80tQ X-IronPort-AV: E=Sophos;i="5.88,204,1635177600"; d="scan'208";a="118878478" Received: from unknown (HELO cn.fujitsu.com) ([10.167.33.5]) by heian.cn.fujitsu.com with ESMTP; 14 Dec 2021 16:19:27 +0800 Received: from G08CNEXMBPEKD04.g08.fujitsu.local (unknown [10.167.33.201]) by cn.fujitsu.com (Postfix) with ESMTP id ABB764D144C7; Tue, 14 Dec 2021 16:19:23 +0800 (CST) Received: from G08CNEXJMPEKD02.g08.fujitsu.local (10.167.33.202) by G08CNEXMBPEKD04.g08.fujitsu.local (10.167.33.201) with Microsoft SMTP Server (TLS) id 15.0.1497.23; Tue, 14 Dec 2021 16:19:23 +0800 Received: from G08CNEXCHPEKD09.g08.fujitsu.local (10.167.33.85) by G08CNEXJMPEKD02.g08.fujitsu.local (10.167.33.202) with Microsoft SMTP Server (TLS) id 15.0.1497.23; Tue, 14 Dec 2021 16:19:23 +0800 Received: from irides.mr.mr.mr (10.167.225.141) by G08CNEXCHPEKD09.g08.fujitsu.local (10.167.33.209) with Microsoft SMTP Server id 15.0.1497.23 via Frontend Transport; Tue, 14 Dec 2021 16:19:21 +0800 From: Shiyang Ruan To: CC: , "Darrick J . Wong" Subject: [PATCH v3 16/17] generic: add race test that mmap write to source of reflink Date: Tue, 14 Dec 2021 16:19:13 +0800 Message-ID: <20211214081914.2478122-17-ruansy.fnst@fujitsu.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20211214081914.2478122-1-ruansy.fnst@fujitsu.com> References: <20211214081914.2478122-1-ruansy.fnst@fujitsu.com> MIME-Version: 1.0 X-yoursite-MailScanner-ID: ABB764D144C7.A129D X-yoursite-MailScanner: Found to be clean X-yoursite-MailScanner-From: ruansy.fnst@fujitsu.com Precedence: bulk List-ID: X-Mailing-List: fstests@vger.kernel.org Test for races or FS corruption when mmap writing to a file that's also the source of a reflink operation. (MMAP version of generic/167,166) Signed-off-by: Shiyang Ruan Reviewed-by: Darrick J. Wong --- tests/generic/914 | 64 +++++++++++++++++++++++++++++++++++++++++++ tests/generic/914.out | 4 +++ 2 files changed, 68 insertions(+) create mode 100755 tests/generic/914 create mode 100644 tests/generic/914.out diff --git a/tests/generic/914 b/tests/generic/914 new file mode 100755 index 00000000..c51c44c7 --- /dev/null +++ b/tests/generic/914 @@ -0,0 +1,64 @@ +#! /bin/bash +# SPDX-License-Identifier: GPL-2.0 +# +# FS QA Test No. 914 +# +# Test for races or FS corruption when mmap writing to a file that's also +# the source of a reflink operation. (MMAP version of generic/167,166) +# +. ./common/preamble +_begin_fstest auto clone + +_register_cleanup "_cleanup" BUS + +# Import common functions. +. ./common/filter +. ./common/reflink + +# real QA test starts here +_require_scratch_reflink +_require_cp_reflink + +echo "Format and mount" +_scratch_mkfs > $seqres.full 2>&1 +_scratch_mount >> $seqres.full 2>&1 + +testdir=$SCRATCH_MNT/test-$seq +finished_file=/tmp/finished +rm -rf $finished_file +mkdir $testdir + +loops=1024 +nr_loops=$((loops - 1)) +blksz=65536 + +echo "Initialize file" +echo >> $seqres.full +_pwrite_byte 0x61 0 $((loops * blksz)) $testdir/file1 >> $seqres.full +_scratch_cycle_mount + +# Snapshot creator... +snappy() { + n=0 + while [ ! -e $finished_file ]; do + out="$(_cp_reflink $testdir/file1 $testdir/snap_$n 2>&1)" + res=$? + echo "$out" | grep -q "No space left" && break + test -n "$out" && echo "$out" + test $res -ne 0 && break + n=$((n + 1)) + done +} + +echo "Snapshot a file undergoing mmap rewrite" +snappy & +seq $nr_loops -1 0 | while read i; do + $XFS_IO_PROG -f -c "mmap -rw $((i * blksz)) $blksz" \ + -c "mwrite -S 0x63 $((i * blksz)) $blksz" $testdir/file1 >> $seqres.full +done +touch $finished_file +wait + +# success, all done +status=0 +exit diff --git a/tests/generic/914.out b/tests/generic/914.out new file mode 100644 index 00000000..1472055f --- /dev/null +++ b/tests/generic/914.out @@ -0,0 +1,4 @@ +QA output created by 914 +Format and mount +Initialize file +Snapshot a file undergoing mmap rewrite