From patchwork Fri Aug 5 07:21:47 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Darrick J. Wong" X-Patchwork-Id: 9264843 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 6B8986048B for ; Fri, 5 Aug 2016 07:22:07 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 5655B282F5 for ; Fri, 5 Aug 2016 07:22:07 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 4AD6A28410; Fri, 5 Aug 2016 07:22:07 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id E004E282F5 for ; Fri, 5 Aug 2016 07:22:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751447AbcHEHWD (ORCPT ); Fri, 5 Aug 2016 03:22:03 -0400 Received: from userp1040.oracle.com ([156.151.31.81]:51771 "EHLO userp1040.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750732AbcHEHWB (ORCPT ); Fri, 5 Aug 2016 03:22:01 -0400 Received: from userv0021.oracle.com (userv0021.oracle.com [156.151.31.71]) by userp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id u757LooS017410 (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Fri, 5 Aug 2016 07:21:51 GMT Received: from aserv0121.oracle.com (aserv0121.oracle.com [141.146.126.235]) by userv0021.oracle.com (8.13.8/8.13.8) with ESMTP id u757Lntc016605 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Fri, 5 Aug 2016 07:21:50 GMT Received: from abhmp0008.oracle.com (abhmp0008.oracle.com [141.146.116.14]) by aserv0121.oracle.com (8.13.8/8.13.8) with ESMTP id u757LmZc021661; Fri, 5 Aug 2016 07:21:49 GMT Received: from localhost (/24.21.211.40) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Fri, 05 Aug 2016 00:21:48 -0700 Date: Fri, 5 Aug 2016 00:21:47 -0700 From: "Darrick J. Wong" To: david@fromorbit.com, eguan@redhat.com Cc: linux-btrfs@vger.kernel.org, fstests@vger.kernel.org, xfs@oss.sgi.com, dedekind1@gmail.com, mfasheh@suse.de Subject: [PATCH] generic: test accurate shared extent reporting Message-ID: <20160805072147.GG25565@birch.djwong.org> MIME-Version: 1.0 Content-Disposition: inline User-Agent: Mutt/1.5.24 (2015-08-30) X-Source-IP: userv0021.oracle.com [156.151.31.71] Sender: linux-btrfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Ensure that we can create a file with a single extent, reflink two blocks out of the middle of that extent, and the resulting fiemap reports two shared extents, instead of lazily reporting the entire huge extent as shared. Signed-off-by: Darrick J. Wong --- tests/generic/929 | 89 +++++++++++++++++++++++++++++++++++++++++++++++++ tests/generic/929.out | 17 +++++++++ tests/generic/group | 1 + 3 files changed, 107 insertions(+) create mode 100755 tests/generic/929 create mode 100644 tests/generic/929.out -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html diff --git a/tests/generic/929 b/tests/generic/929 new file mode 100755 index 0000000..9793be0 --- /dev/null +++ b/tests/generic/929 @@ -0,0 +1,89 @@ +#! /bin/bash +# FS QA Test No. 929 +# +# Check that bmap/fiemap accurately report shared extents. +# +#----------------------------------------------------------------------- +# Copyright (c) 2016 Oracle, Inc. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- +# + +seq=`basename $0` +seqres=$RESULT_DIR/$seq +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 7 15 + +_cleanup() +{ + cd / + rm -rf $tmp.* + wait +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_require_scratch_reflink +_require_fiemap + +echo "Format and mount" +_scratch_mkfs > $seqres.full 2>&1 +_scratch_mount >> $seqres.full 2>&1 + +testdir=$SCRATCH_MNT/test-$seq +mkdir $testdir + +blocks=5 +blksz=65536 +sz=$((blocks * blksz)) + +echo "Create the original files" +$XFS_IO_PROG -f -c "falloc 0 $sz" $testdir/file1 >> $seqres.full +_pwrite_byte 0x61 0 $sz $testdir/file1 >> $seqres.full +_scratch_cycle_mount + +echo "file1 extents and holes" +_count_extents $testdir/file1 +_count_holes $testdir/file1 + +_reflink_range $testdir/file1 $blksz $testdir/file2 $((blksz * 3)) $blksz >> $seqres.full +_reflink_range $testdir/file1 $((blksz * 3)) $testdir/file2 $blksz $blksz >> $seqres.full +_scratch_cycle_mount + +echo "Compare files" +md5sum $testdir/file1 | _filter_scratch +md5sum $testdir/file2 | _filter_scratch + +echo "file1 extents and holes" +_count_extents $testdir/file1 +_count_holes $testdir/file1 +echo "file2 extents and holes" +_count_extents $testdir/file2 +_count_holes $testdir/file2 +echo "file1 shared extents" +$XFS_IO_PROG -c 'fiemap -v' $testdir/file1 | awk '{print $5}' | grep '0x.*[2367aAbBfF]...$' -c + +# success, all done +status=0 +exit diff --git a/tests/generic/929.out b/tests/generic/929.out new file mode 100644 index 0000000..e290f4c --- /dev/null +++ b/tests/generic/929.out @@ -0,0 +1,17 @@ +QA output created by 929 +Format and mount +Create the original files +file1 extents and holes +1 +0 +Compare files +17af09af790a9b4c79cddf72f6b642cb SCRATCH_MNT/test-929/file1 +79418df9c55ab7f58781cb7b9e7d5d91 SCRATCH_MNT/test-929/file2 +file1 extents and holes +5 +0 +file2 extents and holes +2 +2 +file1 shared extents +2 diff --git a/tests/generic/group b/tests/generic/group index 18b9775..732f6f6 100644 --- a/tests/generic/group +++ b/tests/generic/group @@ -375,3 +375,4 @@ 370 auto quick richacl 927 auto quick clone 928 auto quick clone dedupe +929 auto quick clone