From patchwork Tue Dec 14 08:18:59 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Shiyang Ruan X-Patchwork-Id: 12675573 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 9B8D0C433EF for ; Tue, 14 Dec 2021 08:19:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231796AbhLNITY (ORCPT ); Tue, 14 Dec 2021 03:19:24 -0500 Received: from mail.cn.fujitsu.com ([183.91.158.132]:65312 "EHLO heian.cn.fujitsu.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S231789AbhLNITX (ORCPT ); Tue, 14 Dec 2021 03:19:23 -0500 IronPort-Data: A9a23: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 IronPort-HdrOrdr: A9a23:Oji5l6FLgCsvo1kRpLqE1MeALOsnbusQ8zAXPiFKOHhom6mj+vxG88506faKslwssR0b+OxoW5PwJE80l6QFgrX5VI3KNGbbUQCTXeNfBOXZowHIKmnX8+5x8eNaebFiNduYNzNHpPe/zA6mM9tI+rW6zJw= X-IronPort-AV: E=Sophos;i="5.88,204,1635177600"; d="scan'208";a="118878457" 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 G08CNEXMBPEKD05.g08.fujitsu.local (unknown [10.167.33.204]) by cn.fujitsu.com (Postfix) with ESMTP id 956E14D144C3; Tue, 14 Dec 2021 16:19:18 +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; 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 16:19:16 +0800 From: Shiyang Ruan To: CC: , "Darrick J . Wong" Subject: [PATCH v3 02/17] generic: add mmap CoW test for regular&destination extents Date: Tue, 14 Dec 2021 16:18:59 +0800 Message-ID: <20211214081914.2478122-3-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: 956E14D144C3.A0395 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 regular, some not. (MMAP version of generic/197,196) Signed-off-by: Shiyang Ruan Reviewed-by: Darrick J. Wong --- tests/generic/901 | 59 +++++++++++++++++++++++++++++++++++++++++++ tests/generic/901.out | 12 +++++++++ 2 files changed, 71 insertions(+) create mode 100755 tests/generic/901 create mode 100644 tests/generic/901.out diff --git a/tests/generic/901 b/tests/generic/901 new file mode 100755 index 00000000..b9f4fbc0 --- /dev/null +++ b/tests/generic/901 @@ -0,0 +1,59 @@ +#! /bin/bash +# SPDX-License-Identifier: GPL-2.0 +# +# FS QA Test No. 901 +# +# Ensuring that copy on write in mmap mode works when the CoW +# range originally covers multiple extents, some regular, some not. +# (MMAP version of generic/197,196) +# - Create two files. +# - 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_regular $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/901.out b/tests/generic/901.out new file mode 100644 index 00000000..c3983e87 --- /dev/null +++ b/tests/generic/901.out @@ -0,0 +1,12 @@ +QA output created by 901 +Format and mount +Create the original files +Compare files +bdbcf02ee0aa977795a79d25fcfdccb1 SCRATCH_MNT/test-901/file1 +d3959a68638c50af07f0258e032cb554 SCRATCH_MNT/test-901/file3 +d3959a68638c50af07f0258e032cb554 SCRATCH_MNT/test-901/file3.chk +mmap CoW across the transition +Compare files +bdbcf02ee0aa977795a79d25fcfdccb1 SCRATCH_MNT/test-901/file1 +55968a95dfc0120df4e8485576514320 SCRATCH_MNT/test-901/file3 +55968a95dfc0120df4e8485576514320 SCRATCH_MNT/test-901/file3.chk