From patchwork Fri Jan 17 09:36:49 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Koen De Wit X-Patchwork-Id: 3503151 Return-Path: X-Original-To: patchwork-linux-btrfs@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 9BF55C02DC for ; Fri, 17 Jan 2014 09:37:37 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 8A7E820142 for ; Fri, 17 Jan 2014 09:37:36 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 07856200D0 for ; Fri, 17 Jan 2014 09:37:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752118AbaAQJh2 (ORCPT ); Fri, 17 Jan 2014 04:37:28 -0500 Received: from userp1040.oracle.com ([156.151.31.81]:49285 "EHLO userp1040.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752039AbaAQJhW (ORCPT ); Fri, 17 Jan 2014 04:37:22 -0500 Received: from ucsinet22.oracle.com (ucsinet22.oracle.com [156.151.31.94]) by userp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id s0H9bINt003713 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Fri, 17 Jan 2014 09:37:19 GMT Received: from userz7021.oracle.com (userz7021.oracle.com [156.151.31.85]) by ucsinet22.oracle.com (8.14.5+Sun/8.14.5) with ESMTP id s0H9bIro008897 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Fri, 17 Jan 2014 09:37:18 GMT Received: from abhmp0004.oracle.com (abhmp0004.oracle.com [141.146.116.10]) by userz7021.oracle.com (8.14.4+Sun/8.14.4) with ESMTP id s0H9bHLm012186; Fri, 17 Jan 2014 09:37:17 GMT Received: from koen-obi.uk.oracle.com (/10.175.35.51) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Fri, 17 Jan 2014 01:37:17 -0800 From: Koen De Wit To: xfs@oss.sgi.com Cc: linux-btrfs@vger.kernel.org, Koen De Wit , Eric Sandeen Subject: [PATCH RESEND] xfstests: btrfs/027: simple sparse copy testcase for btrfs Date: Fri, 17 Jan 2014 10:36:49 +0100 Message-Id: <1389951409-26029-1-git-send-email-koen.de.wit@oracle.com> X-Mailer: git-send-email 1.7.1 X-Source-IP: ucsinet22.oracle.com [156.151.31.94] Sender: linux-btrfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org X-Spam-Status: No, score=-7.2 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Tests file clone functionality of btrfs ("reflinks"): - Reflink a file - Reflink the reflinked file - Modify the original file - Modify the reflinked file [sandeen: add helpers, make several mostly-cosmetic changes to the original testcase] Signed-off-by: Koen De Wit Signed-off-by: Eric Sandeen --- Originally submitted as test 297, btrfs/308 diff --git a/common/rc b/common/rc index a585eb5..4157cc4 100644 --- a/common/rc +++ b/common/rc @@ -2078,6 +2078,27 @@ _require_ugid_map() fi } +_require_cp_reflink() +{ + cp --help | grep -q reflink || \ + _notrun "This test requires a cp with --reflink support." +} + +# Given 2 files, verify that they have the same mapping but different +# inodes - i.e. an undisturbed reflink +# Silent if so, make noise if not +_verify_reflink() +{ + # not a hard link or symlink? + cmp -s <(stat -c '%i' $1) <(stat -c '%i' $2) \ + && echo "$1 and $2 are not reflinks: same inode number" + + # same mapping? + diff -u <($XFS_IO_PROG -c "fiemap" $1 | grep -v $1) \ + <($XFS_IO_PROG -c "fiemap" $2 | grep -v $2) \ + || echo "$1 and $2 are not reflinks: different extents" +} + _create_loop_device() { file=$1 diff --git a/tests/btrfs/027 b/tests/btrfs/027 new file mode 100644 index 0000000..ec0d5b4 --- /dev/null +++ b/tests/btrfs/027 @@ -0,0 +1,90 @@ +#! /bin/bash +# FS QA Test No. 027 +# +# Tests file clone functionality of btrfs ("reflinks"): +# - Reflink a file +# - Reflink the reflinked file +# - Modify the original file +# - Modify the reflinked file +# +#----------------------------------------------------------------------- +# Copyright (c) 2014, Oracle and/or its affiliates. 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` +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -f $tmp.* +} + +# get standard environment, filters and checks +. common/rc +. common/filter + +# real QA test starts here +_supported_fs btrfs +_supported_os Linux + +_require_xfs_io_fiemap +_require_cp_reflink + +TESTDIR1=$TEST_DIR/test-$seq +rm -rf $TESTDIR1 +mkdir $TESTDIR1 + +_checksum_files() { + for F in original copy1 copy2 + do + md5sum $TESTDIR1/$F | _filter_test_dir + done +} + +rm -f $seqres.full + +echo "Create the original file and reflink to copy1, copy2" +$XFS_IO_PROG -f -c 'pwrite -S 0x61 0 9000' $TESTDIR1/original \ + >> $seqres.full 2>&1 +cp --reflink $TESTDIR1/original $TESTDIR1/copy1 +cp --reflink $TESTDIR1/copy1 $TESTDIR1/copy2 +_verify_reflink $TESTDIR1/original $TESTDIR1/copy1 +_verify_reflink $TESTDIR1/original $TESTDIR1/copy2 +echo "Original md5sums:" +_checksum_files + +echo "Overwrite original file with new data" +$XFS_IO_PROG -c 'pwrite -S 0x62 0 9000' $TESTDIR1/original \ + >> $seqres.full 2>&1 +echo "md5sums after overwriting original:" +_checksum_files + +echo "Overwrite copy1 with different new data" +$XFS_IO_PROG -c 'pwrite -S 0x63 0 9000' $TESTDIR1/copy1 \ + >> $seqres.full 2>&1 +echo "md5sums after overwriting copy1:" +_checksum_files + +# success, all done +status=0 +exit diff --git a/tests/btrfs/027.out b/tests/btrfs/027.out new file mode 100644 index 0000000..13023bf --- /dev/null +++ b/tests/btrfs/027.out @@ -0,0 +1,16 @@ +QA output created by 027 +Create the original file and reflink to copy1, copy2 +Original md5sums: +42d69d1a6d333a7ebdf64792a555e392 TEST_DIR/test-027/original +42d69d1a6d333a7ebdf64792a555e392 TEST_DIR/test-027/copy1 +42d69d1a6d333a7ebdf64792a555e392 TEST_DIR/test-027/copy2 +Overwrite original file with new data +md5sums after overwriting original: +4a847a25439532bf48b68c9e9536ed5b TEST_DIR/test-027/original +42d69d1a6d333a7ebdf64792a555e392 TEST_DIR/test-027/copy1 +42d69d1a6d333a7ebdf64792a555e392 TEST_DIR/test-027/copy2 +Overwrite copy1 with different new data +md5sums after overwriting copy1: +4a847a25439532bf48b68c9e9536ed5b TEST_DIR/test-027/original +e271cd47d9f62ebc96cb4e67ae4d16db TEST_DIR/test-027/copy1 +42d69d1a6d333a7ebdf64792a555e392 TEST_DIR/test-027/copy2 diff --git a/tests/btrfs/group b/tests/btrfs/group index 87e7bca..379f95b 100644 --- a/tests/btrfs/group +++ b/tests/btrfs/group @@ -27,3 +27,4 @@ 022 auto 023 auto 024 auto quick +027 auto quick