From patchwork Thu Nov 25 07:47:38 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Shiyang Ruan X-Patchwork-Id: 12638569 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 4D4FCC433FE for ; Thu, 25 Nov 2021 07:52:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234384AbhKYHzV (ORCPT ); Thu, 25 Nov 2021 02:55:21 -0500 Received: from mail.cn.fujitsu.com ([183.91.158.132]:17619 "EHLO heian.cn.fujitsu.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S234396AbhKYHxU (ORCPT ); Thu, 25 Nov 2021 02:53:20 -0500 IronPort-Data: A9a23:YFUcDqw4/YyrircMdSB6t+crxCrEfRIJ4+MujC/XYbTApDMg3jBTxmFKUT2PPa2KZGamfYokboSy8UxU78XQm4AxHQtv/xmBbVoQ95OdWo7xwmQcns+qBpSaChohtq3yU/GYRCwPZiKa9kjF3oTJ9yEmjPjRHOekUYYoBwgqLeNaYHZ44f5cs75h6mJYqYDR7zKl4bsekeWGULOW82Ic3lYv1k62gEgHUMIeF98vlgdWifhj5DcynpSOZX4VDfnZw3DQGuG4EgMmLtsvwo1V/kuBl/ssItij1LjmcEwWWaOUNg+L4pZUc/H6xEEc+WppieBmXBYfQR4/ZzGhhc14zs5c85K2UhsBMLDOmfgGTl9TFCQW0ahuoeaYcSnn75PDp6HBWz62qxl0N2k4JpEV4fpsKX9B+OZeKz0XaB2HweWsz9qGpkNE7ig4BJCzetpB5Tc7lneEZcvKiKvrG83ijeK0Fh9q7iyWIcvjWg== IronPort-HdrOrdr: A9a23:rWZi36lMjYqiY3WKame1JQHLJ87pDfIC3DAbv31ZSRFFG/FwWfrPoBxRviWE8Qr5OUtQ/uxoV5PwI080maQa3WAxB8bbYOCEghrNEGgB1/qG/9XgcxeOjdK1vJ0IG8ND4bbLfDtHZLHBjDVQfexA/DD8ysqVbJ/lvhFQpF1RGttdBnxCZzpyryZNKzV7OQ== X-IronPort-AV: E=Sophos;i="5.87,262,1631548800"; d="scan'208";a="117890678" Received: from unknown (HELO cn.fujitsu.com) ([10.167.33.5]) by heian.cn.fujitsu.com with ESMTP; 25 Nov 2021 15:47:59 +0800 Received: from G08CNEXMBPEKD05.g08.fujitsu.local (unknown [10.167.33.204]) by cn.fujitsu.com (Postfix) with ESMTP id 71F744D138C7 for ; Thu, 25 Nov 2021 15:47:57 +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, 25 Nov 2021 15:47:57 +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, 25 Nov 2021 15:47:55 +0800 From: Shiyang Ruan To: Subject: [PATCH v2 02/16] generic: add mmap CoW test for regular&destination extents Date: Thu, 25 Nov 2021 15:47:38 +0800 Message-ID: <20211125074752.274176-3-ruansy.fnst@fujitsu.com> X-Mailer: git-send-email 2.34.0 In-Reply-To: <20211125074752.274176-1-ruansy.fnst@fujitsu.com> References: <20211125074752.274176-1-ruansy.fnst@fujitsu.com> MIME-Version: 1.0 X-yoursite-MailScanner-ID: 71F744D138C7.AF4B3 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