From patchwork Thu Jan 12 03:13:37 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Filipe Manana X-Patchwork-Id: 9525615 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 5DEF4601AE for ; Thu, 19 Jan 2017 12:10:21 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 4D0C028480 for ; Thu, 19 Jan 2017 12:10:21 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 420CF28503; Thu, 19 Jan 2017 12:10:21 +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=-3.5 required=2.0 tests=BAYES_00, DATE_IN_PAST_96_XX, 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 B0CFF28480 for ; Thu, 19 Jan 2017 12:10:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752360AbdASMKU (ORCPT ); Thu, 19 Jan 2017 07:10:20 -0500 Received: from mail.kernel.org ([198.145.29.136]:38602 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752233AbdASMKT (ORCPT ); Thu, 19 Jan 2017 07:10:19 -0500 Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 769D52034F; Thu, 19 Jan 2017 12:10:13 +0000 (UTC) Received: from debian3.lan (bl12-226-64.dsl.telepac.pt [85.245.226.64]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 7254A2038F; Thu, 19 Jan 2017 12:10:11 +0000 (UTC) From: fdmanana@kernel.org To: fstests@vger.kernel.org Cc: linux-btrfs@vger.kernel.org, Filipe Manana , Robbie Ko Subject: [PATCH v4 2/3] fstests: test btrfs incremental send after moving a directory Date: Thu, 12 Jan 2017 03:13:37 +0000 Message-Id: <1484190817-17326-1-git-send-email-fdmanana@kernel.org> X-Mailer: git-send-email 2.7.0.rc3 X-Virus-Scanned: ClamAV using ClamSMTP 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 an incremental send operation works after moving a directory into a new parent directory, deleting its previous parent directory and creating a new inode that has the same inode number as the old parent. This issue is fixed by the following patch for the linux kernel: "Btrfs: incremental send, do not delay rename when parent inode is new" Signed-off-by: Robbie Ko Signed-off-by: Filipe Manana --- v4: Improved changelog and added comments to the test that explain what is being tested and the problem. tests/btrfs/134 | 126 ++++++++++++++++++++++++++++++++++++++++++++++++++++ tests/btrfs/134.out | 6 +++ tests/btrfs/group | 1 + 3 files changed, 133 insertions(+) create mode 100755 tests/btrfs/134 create mode 100644 tests/btrfs/134.out diff --git a/tests/btrfs/134 b/tests/btrfs/134 new file mode 100755 index 0000000..e4b4c6d --- /dev/null +++ b/tests/btrfs/134 @@ -0,0 +1,126 @@ +#! /bin/bash +# FS QA Test No. btrfs/134 +# +# Test that an incremental send operation works after moving a directory into +# a new parent directory, deleting its previous parent directory and creating +# a new inode that has the same inode number as the old parent. +# +#----------------------------------------------------------------------- +# Copyright (C) 2017 Synology Inc. All Rights Reserved. +# Author: Robbie Ko +# +# 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" + +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -fr $send_files_dir + rm -f $tmp.* +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter + +# real QA test starts here +_supported_fs btrfs +_supported_os Linux +_require_test +_require_scratch +_require_fssum + +send_files_dir=$TEST_DIR/btrfs-test-$seq + +rm -f $seqres.full +rm -fr $send_files_dir +mkdir $send_files_dir + +_scratch_mkfs >>$seqres.full 2>&1 +_scratch_mount + +mkdir $SCRATCH_MNT/dir257 +mkdir $SCRATCH_MNT/dir258 +mkdir $SCRATCH_MNT/dir259 +mv $SCRATCH_MNT/dir257 $SCRATCH_MNT/dir258/dir257 + +# Filesystem looks like: +# +# . (ino 256, gen 3) +# |--- dir258/ (ino 258, gen 7) +# | |--- dir257/ (ino 257, gen 7) +# | +# |--- dir259/ (ino 259, gen 7) +# +$BTRFS_UTIL_PROG subvolume snapshot -r $SCRATCH_MNT \ + $SCRATCH_MNT/mysnap1 > /dev/null + +mv $SCRATCH_MNT/dir258/dir257 $SCRATCH_MNT/dir257 +rmdir $SCRATCH_MNT/dir258 +rmdir $SCRATCH_MNT/dir259 +# Remount the filesystem so that the next created inodes will have the numbers +# 258 and 259. This is because when a filesystem is mounted, btrfs sets the +# subvolume's inode counter to a value corresponding to the highest inode number +# in the subvolume plus 1. This inode counter is used to assign a unique number +# to each new inode and it's incremented by 1 after very inode creation. +# Note: we unmount and then mount instead of doing a mount with "-o remount" +# because otherwise the inode counter remains at value 260. +_scratch_unmount +_scratch_mount +touch $SCRATCH_MNT/file258 +mkdir $SCRATCH_MNT/new_dir259 +mv $SCRATCH_MNT/dir257 $SCRATCH_MNT/new_dir259/dir257 + +# Filesystem now looks like: +# +# . (ino 256, gen 3) +# |--- file258 (ino 258, gen 10) +# | +# |--- new_dir259/ (ino 259, gen 10) +# |--- dir257/ (ino 257, gen 7) +# +$BTRFS_UTIL_PROG subvolume snapshot -r $SCRATCH_MNT \ + $SCRATCH_MNT/mysnap2 > /dev/null + +$FSSUM_PROG -A -f -w $send_files_dir/1.fssum $SCRATCH_MNT/mysnap1 +$FSSUM_PROG -A -f -w $send_files_dir/2.fssum \ + -x $SCRATCH_MNT/mysnap2/mysnap1 $SCRATCH_MNT/mysnap2 + +$BTRFS_UTIL_PROG send $SCRATCH_MNT/mysnap1 -f \ + $send_files_dir/1.snap 2>&1 1>/dev/null | _filter_scratch +$BTRFS_UTIL_PROG send -p $SCRATCH_MNT/mysnap1 $SCRATCH_MNT/mysnap2 \ + -f $send_files_dir/2.snap 2>&1 1>/dev/null | _filter_scratch + +# Now recreate the filesystem by receiving both send streams and verify we get +# the same content that the original filesystem had. +_scratch_unmount +_scratch_mkfs >>$seqres.full 2>&1 +_scratch_mount + +$BTRFS_UTIL_PROG receive $SCRATCH_MNT -f $send_files_dir/1.snap > /dev/null +$FSSUM_PROG -r $send_files_dir/1.fssum $SCRATCH_MNT/mysnap1 +$BTRFS_UTIL_PROG receive $SCRATCH_MNT -f $send_files_dir/2.snap > /dev/null +$FSSUM_PROG -r $send_files_dir/2.fssum $SCRATCH_MNT/mysnap2 + +status=0 +exit diff --git a/tests/btrfs/134.out b/tests/btrfs/134.out new file mode 100644 index 0000000..75b30a1 --- /dev/null +++ b/tests/btrfs/134.out @@ -0,0 +1,6 @@ +QA output created by 134 +At subvol SCRATCH_MNT/mysnap1 +At subvol SCRATCH_MNT/mysnap2 +At subvol mysnap1 +OK +OK diff --git a/tests/btrfs/group b/tests/btrfs/group index 0cdd413..f33befb 100644 --- a/tests/btrfs/group +++ b/tests/btrfs/group @@ -135,3 +135,4 @@ 131 auto quick 132 auto enospc 133 auto quick send +134 auto quick send