From: Filipe David Borba Manana Date: Tue, 27 May 2014 02:07:42 +0000 (+1000) Subject: btrfs: test for btrfs send when nested subvols/snapshots exist X-Git-Tag: v2022.05.01~3122 X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=45d1fac1303acfa102384f48111dc3a458b93493;p=users%2Fhch%2Fxfstests-dev.git btrfs: test for btrfs send when nested subvols/snapshots exist Regression test for a btrfs incremental send issue where the difference between the snapshots used by the incremental send consists of one of these cases: 1) First snapshot has a directory with name X and in the second snapshot that directory doesn't exist anymore but a subvolume/snapshot with the same name (X) exists; 2) First snapshot has a subvolume/snapshot with name X and in the second snapshot that subvolume/snapshot doesn't exist anymore (might have been replaced by a directory with the same name or not). This issue is fixed by the following linux kernel btrfs patches: Btrfs: send, don't error in the presence of subvols/snapshots Btrfs: set dead flag on the right root when destroying snapshot Signed-off-by: Filipe David Borba Manana Reviewed-by: Dave Chinner Signed-off-by: Dave Chinner --- diff --git a/tests/btrfs/054 b/tests/btrfs/054 new file mode 100755 index 000000000..215861c31 --- /dev/null +++ b/tests/btrfs/054 @@ -0,0 +1,109 @@ +#! /bin/bash +# FS QA Test No. btrfs/054 +# +# Regression test for a btrfs incremental send issue where the difference +# between the snapshots used by the incremental send consists of one of +# these cases: +# +# 1) First snapshot has a directory with name X and in the second snapshot +# that directory doesn't exist anymore but a subvolume/snapshot with +# the same name (X) exists; +# +# 2) First snapshot has a subvolume/snapshot with name X and in the second +# snapshot that subvolume/snapshot doesn't exist anymore (might have been +# replaced by a directory with the same name or not). +# +# This issue is fixed by the following linux kernel btrfs patches: +# +# Btrfs: send, don't error in the presence of subvols/snapshots +# Btrfs: set dead flag on the right root when destroying snapshot +# +#----------------------------------------------------------------------- +# Copyright (c) 2014 Filipe Manana. 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" + +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + rm -fr $send_files_dir + rm -fr $tmp +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/attr + +# real QA test starts here +_supported_fs btrfs +_supported_os Linux +_require_scratch +_need_to_be_root + +send_files_dir=$TEST_DIR/btrfs-test-$seq + +rm -f $seqres.full +rm -fr $send_files_dir +mkdir $send_files_dir + +_scratch_mkfs >/dev/null 2>&1 +_scratch_mount + +mkdir $SCRATCH_MNT/testdir +_run_btrfs_util_prog subvolume create $SCRATCH_MNT/first_subvol + +_run_btrfs_util_prog subvolume snapshot -r $SCRATCH_MNT $SCRATCH_MNT/mysnap1 + +# Replace the directory testdir with a subvolume that has the same name. +rmdir $SCRATCH_MNT/testdir +_run_btrfs_util_prog subvolume create $SCRATCH_MNT/testdir + +# Delete the subvolume first_subvol and create a directory with the same name. +_run_btrfs_util_prog subvolume delete $SCRATCH_MNT/first_subvol +mkdir $SCRATCH_MNT/first_subvol + +_run_btrfs_util_prog subvolume snapshot -r $SCRATCH_MNT $SCRATCH_MNT/mysnap2 + +_run_btrfs_util_prog send $SCRATCH_MNT/mysnap1 -f $send_files_dir/1.snap +_run_btrfs_util_prog send $SCRATCH_MNT/mysnap2 -p $SCRATCH_MNT/mysnap1 \ + -f $send_files_dir/2.snap + +_scratch_unmount +_check_scratch_fs + +_scratch_mkfs >/dev/null 2>&1 +_scratch_mount + +_run_btrfs_util_prog receive $SCRATCH_MNT -f $send_files_dir/1.snap +[ -e $SCRATCH_MNT/first_subvol ] && \ + echo "Subvolume first_subvol was not supposed to be replicated by full send!" + +_run_btrfs_util_prog receive $SCRATCH_MNT -f $send_files_dir/2.snap +[ -e $SCRATCH_MNT/testdir ] && \ + echo "Directory testdir was supposed to be deleted after incremental send!" + +_check_scratch_fs + +status=0 +exit diff --git a/tests/btrfs/054.out b/tests/btrfs/054.out new file mode 100644 index 000000000..03e258bb9 --- /dev/null +++ b/tests/btrfs/054.out @@ -0,0 +1 @@ +QA output created by 054 diff --git a/tests/btrfs/group b/tests/btrfs/group index ea49c5c99..b668485c0 100644 --- a/tests/btrfs/group +++ b/tests/btrfs/group @@ -56,3 +56,4 @@ 051 auto quick 052 auto quick 053 auto quick +054 auto quick