From patchwork Fri Nov 13 21:38:02 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: 7614651 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 [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id B9A34BF90C for ; Fri, 13 Nov 2015 21:38:50 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 9EA932073E for ; Fri, 13 Nov 2015 21:38:49 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 74896207C3 for ; Fri, 13 Nov 2015 21:38:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752061AbbKMVij (ORCPT ); Fri, 13 Nov 2015 16:38:39 -0500 Received: from userp1040.oracle.com ([156.151.31.81]:23194 "EHLO userp1040.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752005AbbKMVii (ORCPT ); Fri, 13 Nov 2015 16:38:38 -0500 Received: from userv0022.oracle.com (userv0022.oracle.com [156.151.31.74]) by userp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id tADLc4JA019451 (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Fri, 13 Nov 2015 21:38:04 GMT Received: from aserv0122.oracle.com (aserv0122.oracle.com [141.146.126.236]) by userv0022.oracle.com (8.13.8/8.13.8) with ESMTP id tADLc3hJ012257 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Fri, 13 Nov 2015 21:38:04 GMT Received: from abhmp0005.oracle.com (abhmp0005.oracle.com [141.146.116.11]) by aserv0122.oracle.com (8.13.8/8.13.8) with ESMTP id tADLc3de026766; Fri, 13 Nov 2015 21:38:03 GMT Received: from localhost (/71.198.20.188) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Fri, 13 Nov 2015 13:38:03 -0800 Subject: [PATCH 12/12] reflink: test what happens when we hit resource limits From: "Darrick J. Wong" To: david@fromorbit.com, darrick.wong@oracle.com Cc: fstests@vger.kernel.org, xfs@oss.sgi.com, hch@infradead.org, tao.peng@primarydata.com, linux-ext4@vger.kernel.org, Anna.Schumaker@netapp.com, linux-btrfs@vger.kernel.org Date: Fri, 13 Nov 2015 13:38:02 -0800 Message-ID: <20151113213802.31124.74408.stgit@birch.djwong.org> In-Reply-To: <20151113213643.31124.80975.stgit@birch.djwong.org> References: <20151113213643.31124.80975.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=-7.2 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 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/175 | 99 +++++++++++++++++++++++++++++++++++++++++++++++++ tests/generic/175.out | 0 tests/generic/176 | 81 ++++++++++++++++++++++++++++++++++++++++ tests/generic/176.out | 5 ++ tests/generic/group | 2 + 5 files changed, 187 insertions(+) create mode 100755 tests/generic/175 create mode 100644 tests/generic/175.out create mode 100755 tests/generic/176 create mode 100644 tests/generic/176.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/175 b/tests/generic/175 new file mode 100755 index 0000000..a7da533 --- /dev/null +++ b/tests/generic/175 @@ -0,0 +1,99 @@ +#! /bin/bash +# FS QA Test No. 175 +# +# 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 +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_require_scratch_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')" +_pwrite_byte 0x61 0 $BLKSZ "$TESTDIR/file1" >> "$seqres.full" +_pwrite_byte 0x62 0 $BLKSZ "$TESTDIR/file2" >> "$seqres.full" +_cp_reflink "$TESTDIR/file1" "$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" + n=$(( (2 ** i) * BLKSZ)) + _reflink_range "$TESTDIR/file1" 0 "$TESTDIR/file1" $n $n >> "$seqres.full" || break +done + +nrf=$((nr - fnr)) +echo "Clone $((2 ** nrf)) files" +seq 0 $((2 ** nrf)) | while read i; do + _cp-reflink "$TESTDIR/file1" "$TESTDIR/file1-$i" +done + +echo "Check scratch fs" +umount "$SCRATCH_MNT" +_check_scratch_fs + +echo "Remove big file and recheck" +_scratch_mount >> "$seqres.full" 2>&1 +umount "$SCRATCH_MNT" +_check_scratch_fs + +echo "Remove all files and recheck" +_scratch_mount >> "$seqres.full" 2>&1 +umount "$SCRATCH_MNT" +_check_scratch_fs + +# success, all done +status=0 +exit diff --git a/tests/generic/175.out b/tests/generic/175.out new file mode 100644 index 0000000..e69de29 diff --git a/tests/generic/176 b/tests/generic/176 new file mode 100755 index 0000000..bf930b7 --- /dev/null +++ b/tests/generic/176 @@ -0,0 +1,81 @@ +#! /bin/bash +# FS QA Test No. 176 +# +# 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 +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_require_scratch_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" +_pwrite_byte 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$((lblk % 2))" + out="$(_reflink_range "$TESTDIR/bigfile" $((lblk * BLKSZ)) "$fname" $((lblk * BLKSZ)) $BLKSZ 2>&1)" + echo "$fname: $out" >> "$seqres.full" + echo "$out" | grep -q "No space left on device" && break +done + +echo "Check scratch fs" +umount "$SCRATCH_MNT" +_check_scratch_fs + +# success, all done +status=0 +exit diff --git a/tests/generic/176.out b/tests/generic/176.out new file mode 100644 index 0000000..eec98eb --- /dev/null +++ b/tests/generic/176.out @@ -0,0 +1,5 @@ +QA output created by 176 +Format and mount +Create a big file +Try to reflink +Check scratch fs diff --git a/tests/generic/group b/tests/generic/group index 09a7828..8a40797 100644 --- a/tests/generic/group +++ b/tests/generic/group @@ -177,6 +177,8 @@ 172 auto quick clone 173 auto quick clone 174 auto quick clone +175 clone_stress +176 clone_stress 184 metadata auto quick 192 atime auto 193 metadata auto quick