From patchwork Thu Nov 11 08:51:03 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Shiyang Ruan X-Patchwork-Id: 12614417 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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 38206C433FE for ; Thu, 11 Nov 2021 08:51:31 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 23C2761267 for ; Thu, 11 Nov 2021 08:51:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232543AbhKKIyS (ORCPT ); Thu, 11 Nov 2021 03:54:18 -0500 Received: from mail.cn.fujitsu.com ([183.91.158.132]:31067 "EHLO heian.cn.fujitsu.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S232530AbhKKIyI (ORCPT ); Thu, 11 Nov 2021 03:54:08 -0500 IronPort-Data: A9a23:gbwtM6nBCpbZwXTv0HZNCoDo5gydJERdPkR7XQ2eYbTBsI5bp2EAyzYZWWyFb/qIYWOnKoxzYITj/EkGuMTczoBgGVFt+CA2RRqmi+KfW43BcR2Y0wB+jyH7ZBs+qZ1YM7EsFehsJpPnjkrrYueJQUVUj/nSH+OlUbacZ0ideCc/IMsfoUM68wIGqt4w6TSJK1vlVeLa+6UzCnf8s9JHGj58B5a4lf9alK+aVAX0EbAJTasjUFf2zxH5BX+ETE27ByOQroJ8RoZWSwtfpYxV8F81/z91Yj+kur39NEMXQL/OJhXIgX1TM0SgqkEa4HVsjeBgb7xBAatUo2zhc9RZ0shEs4ehDwkvJbHklvkfUgVDDmd1OqguFLrveCHg65XPlxaeG5fr67A0ZK0sBqUW4fp6Gn1V3eIXJSpLbR2Zge+yhrWhRYFRam4LRCXwFNpH/Cg+kneCVrB7Ka0vip7ivbdwtArcTOgTdRoGW/ckVA== IronPort-HdrOrdr: A9a23:TIeHc6uUXQ7mz6KlUawfYdvW7skDStV00zEX/kB9WHVpm62j5qSTdZEguCMc5wx+ZJheo7q90cW7IE80lqQFhLX5X43SPzUO0VHARO5fBODZsl/d8kPFltJ15ONJdqhSLJnKB0FmsMCS2mKFOudl7N6Z0K3Av4vj80s= X-IronPort-AV: E=Sophos;i="5.87,225,1631548800"; d="scan'208";a="117214030" Received: from unknown (HELO cn.fujitsu.com) ([10.167.33.5]) by heian.cn.fujitsu.com with ESMTP; 11 Nov 2021 16:51:18 +0800 Received: from G08CNEXMBPEKD05.g08.fujitsu.local (unknown [10.167.33.204]) by cn.fujitsu.com (Postfix) with ESMTP id 8BCC84D10A13 for ; Thu, 11 Nov 2021 16:51:13 +0800 (CST) Received: from G08CNEXCHPEKD09.g08.fujitsu.local (10.167.33.85) by G08CNEXMBPEKD05.g08.fujitsu.local (10.167.33.204) with Microsoft SMTP Server (TLS) id 15.0.1497.23; Thu, 11 Nov 2021 16:51:13 +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; Thu, 11 Nov 2021 16:51:12 +0800 From: Shiyang Ruan To: Subject: [PATCH 10/13] generic: add mmap CoW test for delalloc&source extents Date: Thu, 11 Nov 2021 16:51:03 +0800 Message-ID: <20211111085106.937684-11-ruansy.fnst@fujitsu.com> X-Mailer: git-send-email 2.33.0 In-Reply-To: <20211111085106.937684-1-ruansy.fnst@fujitsu.com> References: <20211111085106.937684-1-ruansy.fnst@fujitsu.com> MIME-Version: 1.0 X-yoursite-MailScanner-ID: 8BCC84D10A13.AF6EA 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 to the source file when the CoW range covers delalloc blocks and regular shared blocks. (MMAP version of generic/293,295) Signed-off-by: Shiyang Ruan --- common/reflink | 3 ++ tests/generic/918 | 64 +++++++++++++++++++++++++++++++++++++++++++ tests/generic/918.out | 12 ++++++++ 3 files changed, 79 insertions(+) create mode 100755 tests/generic/918 create mode 100644 tests/generic/918.out diff --git a/common/reflink b/common/reflink index 84173d59..e304ddc8 100644 --- a/common/reflink +++ b/common/reflink @@ -431,4 +431,7 @@ _sweave_reflink_holes_delalloc() { _pwrite_byte 0x64 $((blksz * i)) $blksz $sfile _pwrite_byte 0x64 $((blksz * i)) $blksz $sfile.chk done + # make sure we actually got delalloc block + $FILEFRAG_PROG -v $sfile 2>&1 | grep -q delalloc || \ + _notrun "test requires delayed allocation writes" } diff --git a/tests/generic/918 b/tests/generic/918 new file mode 100755 index 00000000..f7767a8e --- /dev/null +++ b/tests/generic/918 @@ -0,0 +1,64 @@ +#! /bin/bash +# SPDX-License-Identifier: GPL-2.0 +# +# FS QA Test No. xxx +# +# Ensuring that copy on write in mmap mode to the source file when the +# CoW range covers delalloc blocks and regular shared blocks. +# (MMAP version of generic/293,295) +# - Create two files. +# - Truncate the first file. +# - Write the odd blocks of the first file. +# - Reflink the odd blocks of the first file into the second file. +# - Write the even blocks of the first file. +# - mmap CoW the first file across the halfway mark, starting with the +# regular 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)) +_sweave_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 $testdir/file1.chk | _filter_scratch + +echo "mmap CoW across the transition" +cowoff=$((filesize / 4)) +cowsz=$((filesize / 2)) +_sweave_reflink_holes_delalloc $blksz $nr $testdir/file1 >> $seqres.full +mmapsz=$((cowoff + cowsz)) +_mwrite_byte 0x63 $cowoff $cowsz $mmapsz $testdir/file1 >> $seqres.full +_mwrite_byte 0x63 $cowoff $cowsz $mmapsz $testdir/file1.chk >> $seqres.full +_scratch_cycle_mount + +echo "Compare files" +md5sum $testdir/file1 | _filter_scratch +md5sum $testdir/file3 | _filter_scratch +md5sum $testdir/file1.chk | _filter_scratch + +# success, all done +status=0 +exit diff --git a/tests/generic/918.out b/tests/generic/918.out new file mode 100644 index 00000000..465ade08 --- /dev/null +++ b/tests/generic/918.out @@ -0,0 +1,12 @@ +QA output created by 918 +Format and mount +Create the original files +Compare files +b8a8a88d4c143f79900c4b4e79aa3e37 SCRATCH_MNT/test-918/file1 +ce2023f765eba19677517c511886d5c9 SCRATCH_MNT/test-918/file3 +b8a8a88d4c143f79900c4b4e79aa3e37 SCRATCH_MNT/test-918/file1.chk +mmap CoW across the transition +Compare files +35e2170e14665b780c6dec328d6a263b SCRATCH_MNT/test-918/file1 +ce2023f765eba19677517c511886d5c9 SCRATCH_MNT/test-918/file3 +35e2170e14665b780c6dec328d6a263b SCRATCH_MNT/test-918/file1.chk