From patchwork Tue Dec 14 08:19:06 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Shiyang Ruan X-Patchwork-Id: 12675585 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 72718C4332F for ; Tue, 14 Dec 2021 08:19:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231793AbhLNIT0 (ORCPT ); Tue, 14 Dec 2021 03:19:26 -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 S231795AbhLNITZ (ORCPT ); Tue, 14 Dec 2021 03:19:25 -0500 IronPort-Data: A9a23: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 IronPort-HdrOrdr: A9a23:ouJUC6BuQYHue2vlHemQ55DYdb4zR+YMi2TDtnoBLSC9F/b0qynAppomPGDP4gr5NEtApTniAtjkfZq/z+8X3WB5B97LMzUO01HYTr2Kg7GD/xTQXwX69sN4kZxrarVCDrTLZmRSvILX5xaZHr8brOW6zA== X-IronPort-AV: E=Sophos;i="5.88,204,1635177600"; d="scan'208";a="118878463" 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 140E44D144DA; Tue, 14 Dec 2021 16:19:21 +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 16:19:20 +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 16:19:19 +0800 From: Shiyang Ruan To: CC: , "Darrick J . Wong" Subject: [PATCH v3 09/17] generic: add mmap CoW test for unwritten&source extents Date: Tue, 14 Dec 2021 16:19:06 +0800 Message-ID: <20211214081914.2478122-10-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: 140E44D144DA.A37C9 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 unwritten and regular shared blocks. (MMAP version of generic/289,290) Signed-off-by: Shiyang Ruan Reviewed-by: Darrick J. Wong --- tests/generic/907 | 62 +++++++++++++++++++++++++++++++++++++++++++ tests/generic/907.out | 12 +++++++++ 2 files changed, 74 insertions(+) create mode 100755 tests/generic/907 create mode 100644 tests/generic/907.out diff --git a/tests/generic/907 b/tests/generic/907 new file mode 100755 index 00000000..61c9293a --- /dev/null +++ b/tests/generic/907 @@ -0,0 +1,62 @@ +#! /bin/bash +# SPDX-License-Identifier: GPL-2.0 +# +# FS QA Test No. 907 +# +# Ensuring that copy on write in mmap mode to the source file when the +# CoW range covers unwritten and regular shared blocks. +# (MMAP version of generic/289,290) +# - Create two files. +# - fallocate the first file. +# - Write the odd blocks of the first file. +# - Reflink the odd blocks of the first file into the second 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_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 $testdir/file1.chk | _filter_scratch + +echo "mmap CoW across the transition" +cowoff=$((filesize / 4)) +cowsz=$((filesize / 2)) +mmapsz=$((cowoff + cowsz)) +_mwrite_byte 0x63 $cowoff $cowsz $mmapsz $testdir/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/907.out b/tests/generic/907.out new file mode 100644 index 00000000..c18b849c --- /dev/null +++ b/tests/generic/907.out @@ -0,0 +1,12 @@ +QA output created by 907 +Format and mount +Create the original files +Compare files +b8a8a88d4c143f79900c4b4e79aa3e37 SCRATCH_MNT/test-907/file1 +ce2023f765eba19677517c511886d5c9 SCRATCH_MNT/test-907/file3 +b8a8a88d4c143f79900c4b4e79aa3e37 SCRATCH_MNT/test-907/file1.chk +mmap CoW across the transition +Compare files +e8cf59797f0b3758c8878c368bb4cf7e SCRATCH_MNT/test-907/file1 +ce2023f765eba19677517c511886d5c9 SCRATCH_MNT/test-907/file3 +e8cf59797f0b3758c8878c368bb4cf7e SCRATCH_MNT/test-907/file1.chk