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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 00E2DC433F5 for ; Tue, 7 Dec 2021 00:27:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1344696AbhLGAbY (ORCPT ); Mon, 6 Dec 2021 19:31:24 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47926 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1344456AbhLGAbY (ORCPT ); Mon, 6 Dec 2021 19:31:24 -0500 Received: from sin.source.kernel.org (sin.source.kernel.org [IPv6:2604:1380:40e1:4800::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D3F76C061746 for ; Mon, 6 Dec 2021 16:27:54 -0800 (PST) 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 sin.source.kernel.org (Postfix) with ESMTPS id 8BD4ACE17E3 for ; Tue, 7 Dec 2021 00:27:51 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 83F94C004DD; Tue, 7 Dec 2021 00:27:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1638836869; bh=Fn9v1DFC8+m+sM6/x3yZr4joV0WJoOnQE9TjKDiF2p4=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=BD6SpuutxdP22SkReTYvVPhHiG/8/LkQf6DRP7C6VtUPtilLyROuKWGavegW8mupj n+2fqXEwg0KIi61UajLVW3uB3hg+LIAL21IdlHteJhMvVRHyGubbw8C/qcLQbPvF4q npsE4TJCRNV9Ju5lrXWpa1g/yekOAAea8NXNOsuv7xIilW569mIZhdALtCHQtk90if GOQ1hsZv8a5KYRENmDHiDMpYYZzK6ZFxImLpSXhdOFS+c2NOixTC9ziwDGsNaOSuj7 /jVzXJyN+XWCpbNsNGr/PeSfN2UPd5zDJRmoXyLob4pkGZiZQF3yM3fzOOjBO03MIA IKLavxvdpFU2g== Date: Mon, 6 Dec 2021 16:27:48 -0800 From: "Darrick J. Wong" To: Shiyang Ruan Cc: fstests@vger.kernel.org Subject: Re: [PATCH v2 16/16] generic: add race test that mmap write to target of reflink Message-ID: <20211207002748.GC8442@magnolia> References: <20211125074752.274176-1-ruansy.fnst@fujitsu.com> <20211125074752.274176-17-ruansy.fnst@fujitsu.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20211125074752.274176-17-ruansy.fnst@fujitsu.com> Precedence: bulk List-ID: X-Mailing-List: fstests@vger.kernel.org On Thu, Nov 25, 2021 at 03:47:52PM +0800, Shiyang Ruan wrote: > Test for races or FS corruption when mmap writing to a file that's also > the target of a reflink operation. (MMAP version of generic/168,170) > > Signed-off-by: Shiyang Ruan Looks pretty straightforward, Reviewed-by: Darrick J. Wong --D > --- > tests/generic/915 | 64 +++++++++++++++++++++++++++++++++++++++++++ > tests/generic/915.out | 4 +++ > 2 files changed, 68 insertions(+) > create mode 100755 tests/generic/915 > create mode 100644 tests/generic/915.out > > diff --git a/tests/generic/915 b/tests/generic/915 > new file mode 100755 > index 00000000..365f304c > --- /dev/null > +++ b/tests/generic/915 > @@ -0,0 +1,64 @@ > +#! /bin/bash > +# SPDX-License-Identifier: GPL-2.0 > +# > +# FS QA Test No. 915 > +# > +# Test for races or FS corruption when mmap writing to a file that's also > +# the target of a reflink operation. (MMAP version of generic/168,170) > +# > +. ./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 > + > +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 files" > +echo >> $seqres.full > +_pwrite_byte 0x61 0 $((loops * blksz)) $testdir/file1 >> $seqres.full > +_pwrite_byte 0x62 0 $((loops * blksz)) $testdir/file2 >> $seqres.full > +_scratch_cycle_mount > + > +# mmap overwriter... > +overwrite() { > + while [ ! -e $finished_file ]; do > + 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/file2 >> $seqres.full > + done > + done > +} > + > +echo "Reflink and mmap write the target" > +overwrite & > +seq 1 10 | while read j; do > + seq 0 $nr_loops | while read i; do > + _reflink_range $testdir/file1 $((i * blksz)) \ > + $testdir/file2 $((i * blksz)) $blksz >> $seqres.full > + [ $? -ne 0 ] && exit > + done > +done > +touch $finished_file > +wait > + > +# success, all done > +status=0 > +exit > diff --git a/tests/generic/915.out b/tests/generic/915.out > new file mode 100644 > index 00000000..4e77847b > --- /dev/null > +++ b/tests/generic/915.out > @@ -0,0 +1,4 @@ > +QA output created by 915 > +Format and mount > +Initialize files > +Reflink and mmap write the target > -- > 2.34.0 > > >