#! /bin/bash
# SPDX-License-Identifier: GPL-2.0

#
# FS QA Test No. 080
#
# Verify that mtime is updated when writing to mmap-ed pages
#
seq=`basename $0`
seqres=$RESULT_DIR/$seq
echo "QA output created by $seq"

here=`pwd`
tmp=/tmp/$$
status=0
trap "_cleanup; exit \$status" 0 1 2 3 15

_cleanup()
{
	cd /
	rm -f $tmp.*
	rm -f $testfile
}

# get standard environment, filters and checks
. ./common/rc
. ./common/filter

# real QA test starts here
_supported_fs generic
_require_test

echo "Silence is golden."
rm -f $seqres.full

# pattern the file.
testfile=$TEST_DIR/mmap_mtime_testfile
$XFS_IO_PROG -f -c "pwrite 0 4k" -c fsync $testfile >> $seqres.full

# sample timestamps.
mtime1=`stat -c %Y $testfile`
ctime1=`stat -c %Z $testfile`
echo "before mwrite: $mtime1 $ctime1" >> $seqres.full

# map read followed by map write to trigger timestamp change
sleep 2
$XFS_IO_PROG -c "mmap 0 4k" -c "mread 0 4k" -c "mwrite 0 4k" $testfile \
	>> $seqres.full

# sample and verify that timestamps have changed.
mtime2=`stat -c %Y $testfile`
ctime2=`stat -c %Z $testfile`
echo "after mwrite : $mtime2 $ctime2" >> $seqres.full

if [ "$mtime1" == "$mtime2" ]; then
	echo "mtime not updated"
	let status=$status+1
fi
if [ "$ctime1" == "$ctime2" ]; then
	echo "ctime not updated"
	let status=$status+1
fi

exit