tests/generic/505

#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2018 Huawei.  All Rights Reserved.
#
# FS QA Test 505
#
# This testcase is trying to test recovery flow of generic filesystem, w/ below
# steps, once uid or gid changes, after we fsync that file, we can expect that
# uid/gid can be recovered after sudden power-cuts.
# 1. touch testfile;
# 1.1 sync (optional)
# 2. chown 100 testfile;
# 3. chgrp 100 testfile;
# 4. xfs_io -f testfile -c "fsync";
# 5. godown;
# 6. umount;
# 7. mount;
# 8. check uid/gid
#
. ./common/preamble
_begin_fstest shutdown auto quick metadata

# Import common functions.
. ./common/filter


_require_scratch
_require_scratch_shutdown

_scratch_mkfs >/dev/null 2>&1
_require_metadata_journaling $SCRATCH_DEV

testfile=$SCRATCH_MNT/testfile
stat_opt='-c "uid: %u, gid: %g"'

do_check()
{
	_scratch_mount

	touch $testfile

	if [ "$1" == "sync" ]; then
		_scratch_sync
	fi

	chown 100 $testfile
	chgrp 100 $testfile

	before=`stat "$stat_opt" $testfile`

	$XFS_IO_PROG -f $testfile -c "fsync" | _filter_xfs_io

	_scratch_shutdown | tee -a $seqres.full
	_scratch_cycle_mount

	after=`stat "$stat_opt" $testfile`

	# check inode's uid/gid
	if [ "$before" != "$after" ]; then
		echo "Before: $before"
		echo "After : $after"
	fi
	echo "Before: $before" >> $seqres.full
	echo "After : $after" >> $seqres.full

	rm $testfile
	_scratch_unmount
}

echo "Silence is golden"
do_check
do_check sync

status=0
exit