From patchwork Tue Dec 14 08:19:01 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Shiyang Ruan X-Patchwork-Id: 12675579 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 C73C9C433EF for ; Tue, 14 Dec 2021 08:19:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231800AbhLNITZ (ORCPT ); Tue, 14 Dec 2021 03:19:25 -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 S231797AbhLNITY (ORCPT ); Tue, 14 Dec 2021 03:19:24 -0500 IronPort-Data: A9a23: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 IronPort-HdrOrdr: A9a23:rpQykK3LKFjTlf2tStxvuAqjBI4kLtp133Aq2lEZdPU1SL39qynKppkmPHDP5gr5J0tLpTntAsi9qBDnhPtICOsqTNSftWDd0QPGEGgI1/qB/9SPIU3D398Y/aJhXow7M9foEGV95PyQ3CCIV/om3/mLmZrFudvj X-IronPort-AV: E=Sophos;i="5.88,204,1635177600"; d="scan'208";a="118878462" Received: from unknown (HELO cn.fujitsu.com) ([10.167.33.5]) by heian.cn.fujitsu.com with ESMTP; 14 Dec 2021 16:19:21 +0800 Received: from G08CNEXMBPEKD04.g08.fujitsu.local (unknown [10.167.33.201]) by cn.fujitsu.com (Postfix) with ESMTP id 5F6EA4D144C5; Tue, 14 Dec 2021 16:19:19 +0800 (CST) Received: from G08CNEXCHPEKD09.g08.fujitsu.local (10.167.33.85) by G08CNEXMBPEKD04.g08.fujitsu.local (10.167.33.201) with Microsoft SMTP Server (TLS) id 15.0.1497.23; Tue, 14 Dec 2021 16:19:19 +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 16:19:17 +0800 From: Shiyang Ruan To: CC: , "Darrick J . Wong" Subject: [PATCH v3 04/17] generic: add mmap CoW test for holes&destination extents Date: Tue, 14 Dec 2021 16:19:01 +0800 Message-ID: <20211214081914.2478122-5-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: 5F6EA4D144C5.A22EA 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 Ensuring that copy on write in mmap mode works when the CoW range originally covers multiple extents, some holes, some not. (MMAP version of generic/191,190) Signed-off-by: Shiyang Ruan Reviewed-by: Darrick J. Wong --- tests/generic/903 | 59 +++++++++++++++++++++++++++++++++++++++++++ tests/generic/903.out | 12 +++++++++ 2 files changed, 71 insertions(+) create mode 100755 tests/generic/903 create mode 100644 tests/generic/903.out diff --git a/tests/generic/903 b/tests/generic/903 new file mode 100755 index 00000000..d0de3f26 --- /dev/null +++ b/tests/generic/903 @@ -0,0 +1,59 @@ +#! /bin/bash +# SPDX-License-Identifier: GPL-2.0 +# +# FS QA Test No. 903 +# +# Ensuring that copy on write in mmap mode works when the CoW +# range originally covers multiple extents, some holes, some not. +# (MMAP version of generic/191,190) +# - Create a file and truncate a second file. +# - Reflink the odd blocks of the first file into the second file. +# - mmap CoW across the halfway mark, starting with the unwritten extent. +# - Check that the files are now different where we say they're different. +# +. ./common/preamble +_begin_fstest auto quick clone + +# Import common functions. +. ./common/filter +. ./common/reflink + +# real QA test starts here +_require_scratch_reflink +_require_xfs_io_command "falloc" + +echo "Format and mount" +_scratch_mkfs > $seqres.full 2>&1 +_scratch_mount >> $seqres.full 2>&1 + +testdir=$SCRATCH_MNT/test-$seq +mkdir $testdir + +echo "Create the original files" +blksz=65536 +nr=64 +filesize=$((blksz * nr)) +_weave_reflink_holes $blksz $nr $testdir/file1 $testdir/file3 >> $seqres.full +_scratch_cycle_mount + +echo "Compare files" +md5sum $testdir/file1 | _filter_scratch +md5sum $testdir/file3 | _filter_scratch +md5sum $testdir/file3.chk | _filter_scratch + +echo "mmap CoW across the transition" +cowoff=$((filesize / 4)) +cowsz=$((filesize / 2)) +mmapsz=$((cowoff + cowsz)) +_mwrite_byte 0x63 $cowoff $cowsz $mmapsz $testdir/file3 >> $seqres.full +_mwrite_byte 0x63 $cowoff $cowsz $mmapsz $testdir/file3.chk >> $seqres.full +_scratch_cycle_mount + +echo "Compare files" +md5sum $testdir/file1 | _filter_scratch +md5sum $testdir/file3 | _filter_scratch +md5sum $testdir/file3.chk | _filter_scratch + +# success, all done +status=0 +exit diff --git a/tests/generic/903.out b/tests/generic/903.out new file mode 100644 index 00000000..bf57acc7 --- /dev/null +++ b/tests/generic/903.out @@ -0,0 +1,12 @@ +QA output created by 903 +Format and mount +Create the original files +Compare files +bdbcf02ee0aa977795a79d25fcfdccb1 SCRATCH_MNT/test-903/file1 +fa50dba51826899c372464a153cb2117 SCRATCH_MNT/test-903/file3 +fa50dba51826899c372464a153cb2117 SCRATCH_MNT/test-903/file3.chk +mmap CoW across the transition +Compare files +bdbcf02ee0aa977795a79d25fcfdccb1 SCRATCH_MNT/test-903/file1 +09101629908f9bdd5d178e7ce20bb1bb SCRATCH_MNT/test-903/file3 +09101629908f9bdd5d178e7ce20bb1bb SCRATCH_MNT/test-903/file3.chk