From patchwork Wed Jun 19 12:06:08 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Filipe Manana X-Patchwork-Id: 11003959 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 4485014DB for ; Wed, 19 Jun 2019 12:06:15 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 3399D20602 for ; Wed, 19 Jun 2019 12:06:15 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 27958285D5; Wed, 19 Jun 2019 12:06:15 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.0 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id A3FEA20602 for ; Wed, 19 Jun 2019 12:06:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727591AbfFSMGO (ORCPT ); Wed, 19 Jun 2019 08:06:14 -0400 Received: from mail.kernel.org ([198.145.29.99]:45784 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726246AbfFSMGO (ORCPT ); Wed, 19 Jun 2019 08:06:14 -0400 Received: from localhost.localdomain (bl8-197-74.dsl.telepac.pt [85.241.197.74]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 1E906206E0; Wed, 19 Jun 2019 12:06:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1560945972; bh=2e25v3tLR34fEEuDqNA8PPtm5zwHn9CHWXs3JAkzQRs=; h=From:To:Cc:Subject:Date:From; b=N1lKytHt55tDO6Rg/f5A8F9eewrcTBM1ed41kykMy9dh5weckXtcGKD1Dnc9mWCVo AKd9FFUNyVYEmUL69S0sAIPaLVZ9kxzIxE4nBpkN/AY5A4ohLPLbDC/NtmK9gxh/ER MEN/RZ/75VfwJQyvKPp/WJO9wf7UOjj9r/rcVOxc= From: fdmanana@kernel.org To: fstests@vger.kernel.org Cc: linux-btrfs@vger.kernel.org, Filipe Manana Subject: [PATCH 1/2] generic: test dir fsync after deleting dentry post eviction of its inode Date: Wed, 19 Jun 2019 13:06:08 +0100 Message-Id: <20190619120608.9872-1-fdmanana@kernel.org> X-Mailer: git-send-email 2.11.0 Sender: fstests-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: fstests@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Filipe Manana Test that if we fsync a file, evict its inode, unlink it and then fsync its parent directory, after a power failure the file does not exists. This is motivated by a bug found in btrfs, which is fixed by the following patch for the linux kernel: "Btrfs: fix fsync not persisting dentry deletions due to inode evictions" Signed-off-by: Filipe Manana --- tests/generic/557 | 79 +++++++++++++++++++++++++++++++++++++++++++++++++++ tests/generic/557.out | 2 ++ tests/generic/group | 1 + 3 files changed, 82 insertions(+) create mode 100755 tests/generic/557 create mode 100644 tests/generic/557.out diff --git a/tests/generic/557 b/tests/generic/557 new file mode 100755 index 00000000..64a4dbf7 --- /dev/null +++ b/tests/generic/557 @@ -0,0 +1,79 @@ +#! /bin/bash +# SPDX-License-Identifier: GPL-2.0 +# Copyright (C) 2019 SUSE Linux Products GmbH. All Rights Reserved. +# +# FSQA Test No. 557 +# +# Test that if we fsync a file, evict its inode, unlink it and then fsync its +# parent directory, after a power failure the file does not exists. +# +seq=`basename $0` +seqres=$RESULT_DIR/$seq +echo "QA output created by $seq" +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + _cleanup_flakey + cd / + rm -f $tmp.* +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/dmflakey + +# real QA test starts here +_supported_fs generic +_supported_os Linux +_require_scratch +_require_dm_target flakey + +rm -f $seqres.full + +_scratch_mkfs >>$seqres.full 2>&1 +_require_metadata_journaling $SCRATCH_DEV +_init_flakey +_mount_flakey + +# Create our test directory with one file in it and fsync the file. +mkdir $SCRATCH_MNT/dir +touch $SCRATCH_MNT/dir/foo +$XFS_IO_PROG -c "fsync" $SCRATCH_MNT/dir/foo + +# Keep an open file descriptor on our directory while we evict inodes. We just +# want to evict the file's inode, the directory's inode must not be evicted. +( + cd $SCRATCH_MNT/dir + while true; do + : + done +) & +pid=$! +# Wait a bit to give time to background process to chdir to our test directory. +sleep 0.1 + +# Trigger eviction of the file's inode. +echo 2 > /proc/sys/vm/drop_caches + +# Unlink our file and fsync the parent directory. After a power failure we don't +# expect to see the file anymore, since we fsync'ed the parent directory. +unlink $SCRATCH_MNT/dir/foo +$XFS_IO_PROG -c "fsync" $SCRATCH_MNT/dir + +# Kill the background process using our test directory. +kill $pid +wait $pid + +# Simulate a power failure and then check file foo does not exists anymore. +_flakey_drop_and_remount + +[ -f $SCRATCH_MNT/dir/foo ] && echo "File foo still exists" + +_unmount_flakey +echo "Silence is golden" +status=0 +exit diff --git a/tests/generic/557.out b/tests/generic/557.out new file mode 100644 index 00000000..1f1ae1d4 --- /dev/null +++ b/tests/generic/557.out @@ -0,0 +1,2 @@ +QA output created by 557 +Silence is golden diff --git a/tests/generic/group b/tests/generic/group index 0867e455..543c0627 100644 --- a/tests/generic/group +++ b/tests/generic/group @@ -559,3 +559,4 @@ 554 auto quick copy_range swap 555 auto quick cap 556 auto quick casefold +557 auto quick log