From patchwork Fri Feb 27 11:30:23 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Eryu Guan X-Patchwork-Id: 5900141 Return-Path: X-Original-To: patchwork-fstests@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 5597BBF440 for ; Fri, 27 Feb 2015 11:31:38 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 69FC8202E5 for ; Fri, 27 Feb 2015 11:31:37 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B2FA42028D for ; Fri, 27 Feb 2015 11:31:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751899AbbB0Lbf (ORCPT ); Fri, 27 Feb 2015 06:31:35 -0500 Received: from mx1.redhat.com ([209.132.183.28]:42266 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751105AbbB0Lbf (ORCPT ); Fri, 27 Feb 2015 06:31:35 -0500 Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id t1RBVYuN016629 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL) for ; Fri, 27 Feb 2015 06:31:35 -0500 Received: from localhost (dhcp-12-136.nay.redhat.com [10.66.12.136]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id t1RBVWkX016147; Fri, 27 Feb 2015 06:31:34 -0500 From: Eryu Guan To: fstests@vger.kernel.org Cc: Eryu Guan , Eric Sandeen Subject: [PATCH 3/5] generic: test hardlink to unlinked file Date: Fri, 27 Feb 2015 19:30:23 +0800 Message-Id: <1425036625-23361-4-git-send-email-eguan@redhat.com> In-Reply-To: <1425036625-23361-1-git-send-email-eguan@redhat.com> References: <1425036625-23361-1-git-send-email-eguan@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 Sender: fstests-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: fstests@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 Kernel commit aae8a97 fs: Don't allow to create hardlink for deleted file disabled hardlink to unlinked file. Test the race between link and unlink, which could end up adding link count to an unlinked file and leading to fs corruption on xfs. Test case was originally written by Eric Sandeen. Cc: Eric Sandeen Signed-off-by: Eryu Guan --- tests/generic/072 | 99 +++++++++++++++++++++++++++++++++++++++++++++++++++ tests/generic/072.out | 2 ++ tests/generic/group | 1 + 3 files changed, 102 insertions(+) create mode 100755 tests/generic/072 create mode 100644 tests/generic/072.out diff --git a/tests/generic/072 b/tests/generic/072 new file mode 100755 index 0000000..5628400 --- /dev/null +++ b/tests/generic/072 @@ -0,0 +1,99 @@ +#! /bin/bash +# FS QA Test No. 072 +# +# Test hardlink to unlinked file. +# +# Regression test for commit: +# aae8a97 fs: Don't allow to create hardlink for deleted file +# +#----------------------------------------------------------------------- +# Copyright (c) 2015 Red Hat 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 15 + +_cleanup() +{ + cd / + rm -f $tmp.* +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter + +# real QA test starts here + +# Modify as appropriate. +_supported_fs generic +_supported_os Linux +_require_test + +link_unlink_storm() +{ + local src=$1 + local target=$2 + + while true; do + ln -f $src $target >/dev/null 2>&1 + rm -f $target >/dev/null 2>&1 + done +} + +rm -f $seqres.full +nr_cpu=`$here/src/feature -o` +echo "Silence is golden" + +# create, open & unlinked files so unlinked inode list is not empty +for i in `seq 1 64`; do + testfile=$TEST_DIR/$seq.unlinked.$i + touch $testfile + tail -f $testfile & + tail_pids="$tail_pids $!" + rm -f $testfile +done + +# start link/unlink storm +src=$TEST_DIR/$seq.target +touch $testfile +for i in `seq 1 $nr_cpu`; do + target=$TEST_DIR/$seq.target.link.$i + link_unlink_storm $src $target & + link_pids="$link_pids $!" +done + +# remove & re-create target to race with link/unlink +while true; do + rm -f $src + touch $src +done & +sleep 5 +kill $! >/dev/null 2>&1 + +kill $tail_pids $link_pids >/dev/null 2>&1 +wait $tail_pids $link_pids + +# all done, no oops/hang expected, _check_filesystems checks TEST_DEV after test +status=0 +exit diff --git a/tests/generic/072.out b/tests/generic/072.out new file mode 100644 index 0000000..590bbc6 --- /dev/null +++ b/tests/generic/072.out @@ -0,0 +1,2 @@ +QA output created by 072 +Silence is golden diff --git a/tests/generic/group b/tests/generic/group index f41cc3b..7265b18 100644 --- a/tests/generic/group +++ b/tests/generic/group @@ -74,6 +74,7 @@ 069 rw udf auto quick 070 attr udf auto quick stress 071 auto quick quota +072 auto metadata 074 rw udf auto 075 rw udf auto quick 076 metadata rw udf auto quick stress