#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2020 Red Hat, Inc.. All Rights Reserved.
#
# FS QA Test 539
#
# https://bugzilla.kernel.org/show_bug.cgi?id=211605
# Verify that the warnings are not printed on remount if the mount option has
# the same value as during the mount
#
# Regression test for commit:
# xfs: Skip repetitive warnings about mount options

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

# remove previous $seqres.full before test
rm -f $seqres.full

_require_check_dmesg
_supported_fs xfs
_require_scratch

log_tag()
{
	echo "fstests $seqnum [tag]" > /dev/kmsg
}

dmesg_since_test_tag()
{
	dmesg | tac | sed -ne "0,\#fstests $seqnum \[tag\]#p" | \
		tac
}

check_dmesg_for_since_tag()
{
	dmesg_since_test_tag | egrep -q "$1"
}

echo "Silence is golden."


# Skip old kernels that did not print the warning yet
log_tag
_scratch_mkfs > $seqres.full 2>&1
_scratch_mount -o attr2
_scratch_unmount
check_dmesg_for_since_tag "XFS: attr2 mount option is deprecated" || \
	_notrun "Deprecation warning are not printed at all."

# Test mount with default options (attr2 and noikeep) and remount with
# 2 groups of options
# 1) the defaults (attr2, noikeep)
# 2) non defaults (noattr2, ikeep)
_scratch_mount
for VAR in {attr2,noikeep}; do
	log_tag
	_scratch_remount $VAR
	check_dmesg_for_since_tag "XFS: $VAR mount option is deprecated." && \
		echo "Should not be able to find deprecation warning for $VAR"
done
for VAR in {noattr2,ikeep}; do
	log_tag
	_scratch_remount $VAR
	check_dmesg_for_since_tag "XFS: $VAR mount option is deprecated" || \
		echo "Could not find deprecation warning for $VAR"
done
_scratch_unmount

# success, all done
status=0
exit