From patchwork Thu Nov 11 08:50:58 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Shiyang Ruan X-Patchwork-Id: 12614403 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 267FFC433EF for ; Thu, 11 Nov 2021 08:51:16 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0CA6B61267 for ; Thu, 11 Nov 2021 08:51:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232446AbhKKIyE (ORCPT ); Thu, 11 Nov 2021 03:54:04 -0500 Received: from mail.cn.fujitsu.com ([183.91.158.132]:34979 "EHLO heian.cn.fujitsu.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S232022AbhKKIyD (ORCPT ); Thu, 11 Nov 2021 03:54:03 -0500 IronPort-Data: A9a23:qjFhFKCmMPhh6RVW/zXhw5YqxClBgxIJ4g17XOLfVwO80WxzhjAFmmMaUGiBaf2Da2f9fNggat/n9UxSuJKAx9UxeLYW3SszFioV86IpJjg4wn/YZnrUdouaJK5ex512huLocYZkERcwmj/3auK49CAljfnVLlbBILWs1h5ZFFYMpBgJ2UoLd94R2uaEsPDha++/kYqaT/73ZDdJ7wVJ3lc8sMpvnv/AUMPa41v0tnRmDRxCUcS3e3M9VPrzLonpR5f0rxU9IwK0ewrD5OnREmLx9BFrBM6nk6rgbwsBRbu60Qqm0yIQAvb9xEMZ4HFaPqUTbZLwbW9NljyPhME3xtNWqbS+VAUoIrbR3u8aVnG0FgknZPIcoeOfeCTXXcu7iheun2HX6/t1EEwtIZYw5Ol6GydN+OYeJTRLaQqM799aaprTpvJE35xldZe0ethE/CwI8N0QNt5+KbirfkkAzYIwMO8Mu/1z IronPort-HdrOrdr: A9a23:NPWU/K8VqD+2vAlzmIpuk+DkI+orL9Y04lQ7vn2ZKCYlFvBw8vrCoB1173HJYUkqMk3I9ergBEDiewK4yXcW2/hzAV7KZmCP11dAR7sSj7cKrQeBJwTOssZZ1YpFN5N1EcDMCzFB5vrS0U2VFMkBzbC8nJyVuQ== X-IronPort-AV: E=Sophos;i="5.87,225,1631548800"; d="scan'208";a="117214014" Received: from unknown (HELO cn.fujitsu.com) ([10.167.33.5]) by heian.cn.fujitsu.com with ESMTP; 11 Nov 2021 16:51:12 +0800 Received: from G08CNEXMBPEKD04.g08.fujitsu.local (unknown [10.167.33.201]) by cn.fujitsu.com (Postfix) with ESMTP id 9F6FD4D10A18 for ; Thu, 11 Nov 2021 16:51:11 +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; Thu, 11 Nov 2021 16:51:12 +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 16:51:10 +0800 From: Shiyang Ruan To: Subject: [PATCH 05/13] generic: add mmap CoW test for delalloc&destination extents Date: Thu, 11 Nov 2021 16:50:58 +0800 Message-ID: <20211111085106.937684-6-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: 9F6FD4D10A18.A0F1D 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 delalloc, some not. (MMAP version of generic/195,194) Also, add a check to make sure the delalloc block accutally exists. Signed-off-by: Shiyang Ruan --- common/reflink | 3 +++ tests/generic/913 | 61 +++++++++++++++++++++++++++++++++++++++++++ tests/generic/913.out | 12 +++++++++ 3 files changed, 76 insertions(+) create mode 100755 tests/generic/913 create mode 100644 tests/generic/913.out diff --git a/common/reflink b/common/reflink index ee60398e..38210673 100644 --- a/common/reflink +++ b/common/reflink @@ -296,6 +296,9 @@ _weave_reflink_holes_delalloc() { _pwrite_byte 0x62 $((blksz * i)) $blksz $dfile _pwrite_byte 0x62 $((blksz * i)) $blksz $dfile.chk done + # make sure we actually got delalloc block + $FILEFRAG_PROG -v $dfile 2>&1 | grep -q delalloc || \ + _notrun "test requires delayed allocation writes" } # Create a file of interleaved regular blocks and reflinked blocks diff --git a/tests/generic/913 b/tests/generic/913 new file mode 100755 index 00000000..c02886fa --- /dev/null +++ b/tests/generic/913 @@ -0,0 +1,61 @@ +#! /bin/bash +# SPDX-License-Identifier: GPL-2.0 +# +# FS QA Test No. xxx +# +# Ensuring that copy on write in mmap mode works when the CoW +# range originally covers multiple extents, some delalloc, some not. +# (MMAP version of generic/195,194) +# - Create a file. +# - Reflink the odd blocks of the first file into the second file. +# - Buffered write the even blocks of 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)) +_weave_reflink_holes_delalloc $blksz $nr $testdir/file3 >> $seqres.full +mmapsz=$((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/913.out b/tests/generic/913.out new file mode 100644 index 00000000..1f08400e --- /dev/null +++ b/tests/generic/913.out @@ -0,0 +1,12 @@ +QA output created by 913 +Format and mount +Create the original files +Compare files +bdbcf02ee0aa977795a79d25fcfdccb1 SCRATCH_MNT/test-913/file1 +fa50dba51826899c372464a153cb2117 SCRATCH_MNT/test-913/file3 +fa50dba51826899c372464a153cb2117 SCRATCH_MNT/test-913/file3.chk +mmap CoW across the transition +Compare files +bdbcf02ee0aa977795a79d25fcfdccb1 SCRATCH_MNT/test-913/file1 +55968a95dfc0120df4e8485576514320 SCRATCH_MNT/test-913/file3 +55968a95dfc0120df4e8485576514320 SCRATCH_MNT/test-913/file3.chk