From patchwork Thu Nov 25 07:47:39 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Shiyang Ruan X-Patchwork-Id: 12638593 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 D63BAC433EF for ; Thu, 25 Nov 2021 07:55:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240032AbhKYH7K (ORCPT ); Thu, 25 Nov 2021 02:59:10 -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 S243442AbhKYH5W (ORCPT ); Thu, 25 Nov 2021 02:57:22 -0500 IronPort-Data: A9a23:9ilqJ661n3ll57OGi4nuhAxRtCTFchMFZxGqfqrLsXjdYENS0DAAzWtKXj+BPP2OZmqmLtFyb4W+8UoEvZ/dzNRkSFY5pCpnJ55ogZCbXIzGdC8cHM8zwvXrFRsht4NHAjX5BJhcokT0+1H9bdANkVEmjfvRH+OmVbadUsxMbVQMpBkJ2EsLd9ER0tYAbeiRW2thiPuqyyHtEAbNNw1cbgr435m+RCZH55wejt+3UmsWPpintHeG/5Uc4Ql2yauZdxMUSaEMdgK2qnqq8V23wo/Z109F5tKNmbC9fFAIQ6LJIE6FjX8+t6qK20AE/3JtlP1gcqd0hUR/0l1lm/hr1dxLro32RwEyIoXCheYcTwJFVSp5OMWq/ZeeeCfv4JTNnxaun3zEhq8G4FsNFYMD5utsHXpm6/MVMnYOYwqFiubwx6i0ItSALOxLwNLDZdtZ4y8/i2qCS6tOfHwKeI2Sjfcw4dv6rpsm8S7iWvck IronPort-HdrOrdr: A9a23:ohvOB65q9ofXVn3mmQPXwObXdLJyesId70hD6qm+c3xomofyrbHWoB17726StN9/YgBDpTntAse9qFLnhOZICOoqTNOftWvdyQ6VxIAL1/qY/9SIIUSXndK1vp0QEJSWf+edMbEVt6fHCXODeerIuOP3lpxA2d2utUuFNjsGV0nchD0XNjqm X-IronPort-AV: E=Sophos;i="5.87,262,1631548800"; d="scan'208";a="117890683" 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 G08CNEXMBPEKD06.g08.fujitsu.local (unknown [10.167.33.206]) by cn.fujitsu.com (Postfix) with ESMTP id BA42E4D138C8 for ; Thu, 25 Nov 2021 15:47:57 +0800 (CST) Received: from G08CNEXCHPEKD09.g08.fujitsu.local (10.167.33.85) by G08CNEXMBPEKD06.g08.fujitsu.local (10.167.33.206) with Microsoft SMTP Server (TLS) id 15.0.1497.23; Thu, 25 Nov 2021 15:47:56 +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 15:47:56 +0800 From: Shiyang Ruan To: Subject: [PATCH v2 03/16] generic: add mmap CoW test for unwritten&destination extents Date: Thu, 25 Nov 2021 15:47:39 +0800 Message-ID: <20211125074752.274176-4-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: BA42E4D138C8.A058B 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 unwritten, some not. (MMAP version of generic/189,188) Signed-off-by: Shiyang Ruan Reviewed-by: Darrick J. Wong --- tests/generic/902 | 59 +++++++++++++++++++++++++++++++++++++++++++ tests/generic/902.out | 12 +++++++++ 2 files changed, 71 insertions(+) create mode 100755 tests/generic/902 create mode 100644 tests/generic/902.out diff --git a/tests/generic/902 b/tests/generic/902 new file mode 100755 index 00000000..457b039a --- /dev/null +++ b/tests/generic/902 @@ -0,0 +1,59 @@ +#! /bin/bash +# SPDX-License-Identifier: GPL-2.0 +# +# FS QA Test No. 902 +# +# Ensuring that copy on write in mmap mode works when the CoW +# range originally covers multiple extents, some unwritten, some not. +# (MMAP version of generic/189,188) +# - Create a file and fallocate a second file. +# - 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_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 $testdir/file3.chk | _filter_scratch + +echo "mmap CoW across the transition" +cowoff=$((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/902.out b/tests/generic/902.out new file mode 100644 index 00000000..bc951255 --- /dev/null +++ b/tests/generic/902.out @@ -0,0 +1,12 @@ +QA output created by 902 +Format and mount +Create the original files +Compare files +bdbcf02ee0aa977795a79d25fcfdccb1 SCRATCH_MNT/test-902/file1 +fa50dba51826899c372464a153cb2117 SCRATCH_MNT/test-902/file3 +fa50dba51826899c372464a153cb2117 SCRATCH_MNT/test-902/file3.chk +mmap CoW across the transition +Compare files +bdbcf02ee0aa977795a79d25fcfdccb1 SCRATCH_MNT/test-902/file1 +09101629908f9bdd5d178e7ce20bb1bb SCRATCH_MNT/test-902/file3 +09101629908f9bdd5d178e7ce20bb1bb SCRATCH_MNT/test-902/file3.chk