From patchwork Wed Oct 7 05:14:18 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Darrick J. Wong" X-Patchwork-Id: 7342581 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 AE8359F1B9 for ; Wed, 7 Oct 2015 05:16:00 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id A552620266 for ; Wed, 7 Oct 2015 05:15:59 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 64DC22026F for ; Wed, 7 Oct 2015 05:15:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753212AbbJGFPz (ORCPT ); Wed, 7 Oct 2015 01:15:55 -0400 Received: from aserp1040.oracle.com ([141.146.126.69]:40890 "EHLO aserp1040.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752551AbbJGFOZ (ORCPT ); Wed, 7 Oct 2015 01:14:25 -0400 Received: from userv0021.oracle.com (userv0021.oracle.com [156.151.31.71]) by aserp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id t975ELQc021367 (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Wed, 7 Oct 2015 05:14:21 GMT Received: from userv0121.oracle.com (userv0121.oracle.com [156.151.31.72]) by userv0021.oracle.com (8.13.8/8.13.8) with ESMTP id t975ELRk007651 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Wed, 7 Oct 2015 05:14:21 GMT Received: from abhmp0003.oracle.com (abhmp0003.oracle.com [141.146.116.9]) by userv0121.oracle.com (8.13.8/8.13.8) with ESMTP id t975EKsY024477; Wed, 7 Oct 2015 05:14:20 GMT Received: from localhost (/24.21.154.84) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Tue, 06 Oct 2015 22:14:19 -0700 Subject: [PATCH 11/12] reflink: test what happens when we hit resource limits From: "Darrick J. Wong" To: david@fromorbit.com, darrick.wong@oracle.com Cc: Anna.Schumaker@netapp.com, linux-ext4@vger.kernel.org, linux-btrfs@vger.kernel.org, fstests@vger.kernel.org, xfs@oss.sgi.com Date: Tue, 06 Oct 2015 22:14:18 -0700 Message-ID: <20151007051418.3260.71528.stgit@birch.djwong.org> In-Reply-To: <20151007051257.3260.73072.stgit@birch.djwong.org> References: <20151007051257.3260.73072.stgit@birch.djwong.org> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 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-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, T_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 Add a few horrible opt-in stress tests to see what happens if we try to reflink the same block billions of times, and what happens if we run out of space while reflinking a file. Signed-off-by: Darrick J. Wong --- tests/generic/840 | 106 +++++++++++++++++++++++++++++++++++++++++++++++++ tests/generic/840.out | 0 tests/generic/841 | 85 +++++++++++++++++++++++++++++++++++++++ tests/generic/841.out | 5 ++ tests/generic/group | 2 + 5 files changed, 198 insertions(+) create mode 100755 tests/generic/840 create mode 100644 tests/generic/840.out create mode 100755 tests/generic/841 create mode 100644 tests/generic/841.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/840 b/tests/generic/840 new file mode 100755 index 0000000..50ccae9 --- /dev/null +++ b/tests/generic/840 @@ -0,0 +1,106 @@ +#! /bin/bash +# FS QA Test No. 840 +# +# Try to hit the maximum reference count (eek!) +# +# This test runs extremely slowly, so it's not automatically run anywhere. +# +#----------------------------------------------------------------------- +# Copyright (c) 2015, 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 $0` +seqres=$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 15 + +_cleanup() +{ + cd / + rm -rf $tmp.* $TESTDIR1 +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/attr + +# real QA test starts here +_require_test +_require_scratch +_require_scratch_reflink +_require_test_reflink +_supported_os Linux + +_require_xfs_io_command "reflink" +_require_cp_reflink + +rm -f $seqres.full + +echo "Format and mount" +_scratch_mkfs > $seqres.full 2>&1 +_scratch_mount >> $seqres.full 2>&1 + +TESTDIR=$SCRATCH_MNT/test-$seq +rm -rf $TESTDIR +mkdir $TESTDIR + +# Well let's hope the maximum reflink count is (less than (ha!)) 2^32... + +echo "Create a one block file" +BLKSZ="$(stat -f $TESTDIR -c '%S')" +$XFS_IO_PROG -f -c "pwrite -S 0x61 0 $BLKSZ" $TESTDIR/file1 >> $seqres.full +$XFS_IO_PROG -f -c "pwrite -S 0x62 0 $BLKSZ" $TESTDIR/file2 >> $seqres.full + +$XFS_IO_PROG -f -c "reflink $TESTDIR/file1 0 0 $BLKSZ" $TESTDIR/file2 >> $seqres.full + +nr=32 +fnr=32 +for i in $(seq 0 $fnr); do + echo " ++ Reflink size $i, $(( (2 ** i) * BLKSZ)) bytes" | tee -a $seqres.full + $XFS_IO_PROG -f -c "reflink $TESTDIR/file1 0 $(( (2 ** i) * BLKSZ)) $(( (2 ** i) * BLKSZ ))" $TESTDIR/file1 >> $seqres.full || break +done + +nrf=$((nr - fnr)) +echo "Clone $((2 ** nrf)) files" +for i in $(seq 0 $((2 ** nrf)) ); do + cp --reflink=always $TESTDIR/file1 $TESTDIR/file1-$i +done + +echo "Check scratch fs" +umount $SCRATCH_MNT +$XFS_DB_PROG -c 'agf 0' -c 'addr rlroot' -c p $SCRATCH_DEV +_check_scratch_fs + +echo "Remove big file and recheck" +_scratch_mount >> $seqres.full 2>&1 +#rm -rf $TESTDIR/file1 +umount $SCRATCH_MNT +_check_scratch_fs + +echo "Remove all files and recheck" +_scratch_mount >> $seqres.full 2>&1 +#rm -rf $TESTDIR/file2 +umount $SCRATCH_MNT +_check_scratch_fs + +# success, all done +status=0 +exit diff --git a/tests/generic/840.out b/tests/generic/840.out new file mode 100644 index 0000000..e69de29 diff --git a/tests/generic/841 b/tests/generic/841 new file mode 100755 index 0000000..5cc534e --- /dev/null +++ b/tests/generic/841 @@ -0,0 +1,85 @@ +#! /bin/bash +# FS QA Test No. 841 +# +# Try to run out of space while cloning? +# +#----------------------------------------------------------------------- +# Copyright (c) 2015, 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` +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 15 + +_cleanup() +{ + cd / + rm -rf $tmp.* $TESTDIR1 +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/attr + +# real QA test starts here +_require_scratch +_require_scratch_reflink +_require_test_reflink +_supported_os Linux + +_require_xfs_io_command "reflink" +_require_cp_reflink + +rm -f $seqres.full + +echo "Format and mount" +_scratch_mkfs > $seqres.full 2>&1 +_scratch_mount >> $seqres.full 2>&1 + +TESTDIR=$SCRATCH_MNT/test-$seq +rm -rf $TESTDIR +mkdir $TESTDIR + +BLKSZ="$(stat -f $TESTDIR -c '%S')" +NR_FREE="$(stat -f -c '%f' $TESTDIR)" +echo "Create a big file" +touch $TESTDIR/file0 $TESTDIR/file1 +$XFS_IO_PROG -f -c "pwrite -S 0x61 0 $((BLKSZ * NR_FREE))" $TESTDIR/bigfile >> $seqres.full 2>&1 +_scratch_remount +sz="$(stat -c '%s' $TESTDIR/bigfile)" + +blks="$((sz / BLKSZ))" +echo "Try to reflink" +seq 0 $blks | while read lblk; do + fname="$TESTDIR/file$((lblk % 2))" + out="$($XFS_IO_PROG -f -c "reflink $TESTDIR/bigfile $((lblk * BLKSZ)) $((lblk * BLKSZ)) $BLKSZ" $fname 2>&1)" + echo "$out" >> $seqres.full + test "$out" = "reflink: No space left on device" && break +done + +echo "Check scratch fs" +umount $SCRATCH_MNT +_check_scratch_fs + +# success, all done +status=0 +exit diff --git a/tests/generic/841.out b/tests/generic/841.out new file mode 100644 index 0000000..33c46fd --- /dev/null +++ b/tests/generic/841.out @@ -0,0 +1,5 @@ +QA output created by 841 +Format and mount +Create a big file +Try to reflink +Check scratch fs diff --git a/tests/generic/group b/tests/generic/group index daaf23a..d4f05a9 100644 --- a/tests/generic/group +++ b/tests/generic/group @@ -246,3 +246,5 @@ 837 auto quick clone 838 auto quick clone 839 auto quick clone +840 clone_stress +841 clone_stress