From patchwork Tue Dec 14 08:19:00 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Shiyang Ruan X-Patchwork-Id: 12675567 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 5014FC433F5 for ; Tue, 14 Dec 2021 08:19:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231790AbhLNITW (ORCPT ); Tue, 14 Dec 2021 03:19:22 -0500 Received: from mail.cn.fujitsu.com ([183.91.158.132]:12969 "EHLO heian.cn.fujitsu.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S231789AbhLNITW (ORCPT ); Tue, 14 Dec 2021 03:19:22 -0500 IronPort-Data: A9a23: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 IronPort-HdrOrdr: A9a23:SGeBvKqUCur+o3POnHpH2G4aV5oXeYIsimQD101hICG9E/bo8/xG+c536faaslgssQ4b8+xoVJPgfZq+z+8R3WByB8bAYOCOggLBQ72KhrGSoQEIdRefysdtkY9kc4VbTOb7FEVGi6/BizWQIpINx8am/cmT6dvj8w== X-IronPort-AV: E=Sophos;i="5.88,204,1635177600"; d="scan'208";a="118878455" 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 G08CNEXMBPEKD06.g08.fujitsu.local (unknown [10.167.33.206]) by cn.fujitsu.com (Postfix) with ESMTP id 04E464D144C4; Tue, 14 Dec 2021 16:19:19 +0800 (CST) Received: from G08CNEXCHPEKD09.g08.fujitsu.local (10.167.33.85) by G08CNEXMBPEKD06.g08.fujitsu.local (10.167.33.206) with Microsoft SMTP Server (TLS) id 15.0.1497.23; Tue, 14 Dec 2021 16:19:17 +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 03/17] generic: add mmap CoW test for unwritten&destination extents Date: Tue, 14 Dec 2021 16:19:00 +0800 Message-ID: <20211214081914.2478122-4-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: 04E464D144C4.A3BC8 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 unwritten, some not. (MMAP version of generic/189,188) Signed-off-by: Shiyang Ruan Reviewed-by: Darrick J. Wong --- tests/generic/902 | 59 +++++++++++++++++++++++++++++++++++++++++++ tests/generic/902.out | 12 +++++++++ 2 files changed, 71 insertions(+) create mode 100755 tests/generic/902 create mode 100644 tests/generic/902.out diff --git a/tests/generic/902 b/tests/generic/902 new file mode 100755 index 00000000..457b039a --- /dev/null +++ b/tests/generic/902 @@ -0,0 +1,59 @@ +#! /bin/bash +# SPDX-License-Identifier: GPL-2.0 +# +# FS QA Test No. 902 +# +# Ensuring that copy on write in mmap mode works when the CoW +# range originally covers multiple extents, some unwritten, some not. +# (MMAP version of generic/189,188) +# - Create a file and fallocate 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_unwritten $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/902.out b/tests/generic/902.out new file mode 100644 index 00000000..bc951255 --- /dev/null +++ b/tests/generic/902.out @@ -0,0 +1,12 @@ +QA output created by 902 +Format and mount +Create the original files +Compare files +bdbcf02ee0aa977795a79d25fcfdccb1 SCRATCH_MNT/test-902/file1 +fa50dba51826899c372464a153cb2117 SCRATCH_MNT/test-902/file3 +fa50dba51826899c372464a153cb2117 SCRATCH_MNT/test-902/file3.chk +mmap CoW across the transition +Compare files +bdbcf02ee0aa977795a79d25fcfdccb1 SCRATCH_MNT/test-902/file1 +09101629908f9bdd5d178e7ce20bb1bb SCRATCH_MNT/test-902/file3 +09101629908f9bdd5d178e7ce20bb1bb SCRATCH_MNT/test-902/file3.chk