From patchwork Thu Feb 11 23:42:34 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: 8285841 Return-Path: X-Original-To: patchwork-linux-btrfs@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id BCD709F6DA for ; Thu, 11 Feb 2016 23:44:31 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 89F9D2034C for ; Thu, 11 Feb 2016 23:44:30 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 4730B20306 for ; Thu, 11 Feb 2016 23:44:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752025AbcBKXms (ORCPT ); Thu, 11 Feb 2016 18:42:48 -0500 Received: from aserp1040.oracle.com ([141.146.126.69]:20002 "EHLO aserp1040.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752006AbcBKXml (ORCPT ); Thu, 11 Feb 2016 18:42:41 -0500 Received: from userv0022.oracle.com (userv0022.oracle.com [156.151.31.74]) by aserp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id u1BNgbEm025509 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 11 Feb 2016 23:42:37 GMT Received: from userv0121.oracle.com (userv0121.oracle.com [156.151.31.72]) by userv0022.oracle.com (8.14.4/8.13.8) with ESMTP id u1BNgbXp030301 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Thu, 11 Feb 2016 23:42:37 GMT Received: from abhmp0010.oracle.com (abhmp0010.oracle.com [141.146.116.16]) by userv0121.oracle.com (8.13.8/8.13.8) with ESMTP id u1BNgaid007128; Thu, 11 Feb 2016 23:42:36 GMT Received: from localhost (/10.145.178.207) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Thu, 11 Feb 2016 15:42:36 -0800 Subject: [PATCH 29/32] reflink: test reflink+cow+enospc all at the same time From: "Darrick J. Wong" To: david@fromorbit.com, darrick.wong@oracle.com Cc: linux-btrfs@vger.kernel.org, fstests@vger.kernel.org, xfs@oss.sgi.com Date: Thu, 11 Feb 2016 15:42:34 -0800 Message-ID: <20160211234234.2202.62281.stgit@birch.djwong.org> In-Reply-To: <20160211233916.2202.40961.stgit@birch.djwong.org> References: <20160211233916.2202.40961.stgit@birch.djwong.org> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 X-Source-IP: userv0022.oracle.com [156.151.31.74] Sender: linux-btrfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org X-Spam-Status: No, score=-7.1 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 Set up an impossibly small filesystem and try to reflink and rewrite a file on it to see what happens when we ENOSPC. Basically generic/16[67] but with a constrained fs size. Signed-off-by: Darrick J. Wong --- tests/generic/166 | 6 ++- tests/generic/167 | 6 ++- tests/generic/333 | 99 +++++++++++++++++++++++++++++++++++++++++++++++++ tests/generic/333.out | 4 ++ tests/generic/334 | 98 +++++++++++++++++++++++++++++++++++++++++++++++++ tests/generic/334.out | 4 ++ tests/generic/group | 2 + 7 files changed, 217 insertions(+), 2 deletions(-) create mode 100755 tests/generic/333 create mode 100644 tests/generic/333.out create mode 100755 tests/generic/334 create mode 100644 tests/generic/334.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/166 b/tests/generic/166 index 9b177be..a1e4ff4 100755 --- a/tests/generic/166 +++ b/tests/generic/166 @@ -69,7 +69,11 @@ _scratch_remount snappy() { n=0 while [ ! -e $testdir/finished ]; do - _cp_reflink $testdir/file1 $testdir/snap_$n || break + out="$(_cp_reflink $testdir/file1 $testdir/snap_$n 2>&1)" + res=$? + echo "$out" | grep -q "No space left" && break + test -n "$out" && echo "$out" + test $res -ne 0 && break n=$((n + 1)) done } diff --git a/tests/generic/167 b/tests/generic/167 index ef8e75b..76969c1 100755 --- a/tests/generic/167 +++ b/tests/generic/167 @@ -68,7 +68,11 @@ _scratch_remount snappy() { n=0 while [ ! -e $testdir/finished ]; do - _cp_reflink $testdir/file1 $testdir/snap_$n || break + out="$(_cp_reflink $testdir/file1 $testdir/snap_$n 2>&1)" + res=$? + echo "$out" | grep -q "No space left" && break + test -n "$out" && echo "$out" + test $res -ne 0 && break n=$((n + 1)) done } diff --git a/tests/generic/333 b/tests/generic/333 new file mode 100755 index 0000000..b8a1ea8 --- /dev/null +++ b/tests/generic/333 @@ -0,0 +1,99 @@ +#! /bin/bash +# FS QA Test No. 333 +# +# Test for races or FS corruption when trying to hit ENOSPC while DIO writing +# to a file that's also the source of a reflink operation. +# +#----------------------------------------------------------------------- +# 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_cp_reflink +_require_odirect + +echo "Format and mount" +_scratch_mkfs_sized $((400 * 1048576)) > $seqres.full 2>&1 +_scratch_mount >> $seqres.full 2>&1 + +testdir=$SCRATCH_MNT/test-$seq +mkdir $testdir + +loops=1024 +nr_loops=$((loops - 1)) +blksz=65536 + +echo "Initialize file" +echo > $seqres.full +_pwrite_byte 0x61 0 $((loops * blksz)) $testdir/file1 >> $seqres.full +_scratch_remount + +# Snapshot creator... +snappy() { + n=0 + while [ ! -e $testdir/finished ]; do + out="$(_cp_reflink $testdir/file1 $testdir/snap_$n 2>&1)" + res=$? + echo $out | grep -q "No space left" && break + test -n "$out" && echo $out + test $res -ne 0 && break + n=$((n + 1)) + done + touch $testdir/abort +} + +echo "Snapshot a file undergoing directio rewrite" +snappy & +seq 1 1000 | while read j; do + seq $nr_loops -1 0 | while read i; do + out="$(_pwrite_byte 0x63 $((i * blksz)) $blksz -d $testdir/file1 2>&1)" + echo $out >> $seqres.full + echo $out | grep -q "No space left" && touch $testdir/abort + echo $out | grep -qi "error" && touch $testdir/abort + test -e $testdir/abort && break + done + test -e $testdir/abort && break +done +touch $testdir/finished +wait + +# success, all done +status=0 +exit diff --git a/tests/generic/333.out b/tests/generic/333.out new file mode 100644 index 0000000..3354c98 --- /dev/null +++ b/tests/generic/333.out @@ -0,0 +1,4 @@ +QA output created by 333 +Format and mount +Initialize file +Snapshot a file undergoing directio rewrite diff --git a/tests/generic/334 b/tests/generic/334 new file mode 100755 index 0000000..89601be --- /dev/null +++ b/tests/generic/334 @@ -0,0 +1,98 @@ +#! /bin/bash +# FS QA Test No. 334 +# +# Test for races or FS corruption when trying to hit ENOSPC while writing +# to a file that's also the source of a reflink operation. +# +#----------------------------------------------------------------------- +# 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_cp_reflink + +echo "Format and mount" +_scratch_mkfs_sized $((400 * 1048576)) > $seqres.full 2>&1 +_scratch_mount >> $seqres.full 2>&1 + +testdir=$SCRATCH_MNT/test-$seq +mkdir $testdir + +loops=1024 +nr_loops=$((loops - 1)) +blksz=65536 + +echo "Initialize file" +echo > $seqres.full +_pwrite_byte 0x61 0 $((loops * blksz)) $testdir/file1 >> $seqres.full +_scratch_remount + +# Snapshot creator... +snappy() { + n=0 + while [ ! -e $testdir/finished ]; do + out="$(_cp_reflink $testdir/file1 $testdir/snap_$n 2>&1)" + res=$? + echo $out | grep -q "No space left" && break + test -n "$out" && echo $out + test $res -ne 0 && break + n=$((n + 1)) + done + touch $testdir/abort +} + +echo "Snapshot a file undergoing buffered rewrite" +snappy & +seq 1 1000 | while read j; do + seq $nr_loops -1 0 | while read i; do + out="$(_pwrite_byte 0x63 $((i * blksz)) $blksz $testdir/file1 2>&1)" + echo $out >> $seqres.full + echo $out | grep -q "No space left" && touch $testdir/abort + echo $out | grep -qi "error" && touch $testdir/abort + test -e $testdir/abort && break + done + test -e $testdir/abort && break +done +touch $testdir/finished +wait + +# success, all done +status=0 +exit diff --git a/tests/generic/334.out b/tests/generic/334.out new file mode 100644 index 0000000..c2c40fd --- /dev/null +++ b/tests/generic/334.out @@ -0,0 +1,4 @@ +QA output created by 334 +Format and mount +Initialize file +Snapshot a file undergoing buffered rewrite diff --git a/tests/generic/group b/tests/generic/group index e7ed475..e3c4e8a 100644 --- a/tests/generic/group +++ b/tests/generic/group @@ -335,3 +335,5 @@ 330 auto quick clone 331 auto quick clone 332 auto quick clone +333 auto quick clone +334 auto quick clone