#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2020 Facebook  All Rights Reserved.
#
# FS QA Test 604
#
# Evicting dirty inodes can take a long time during umount.
# Check that a new mount racing with such a delayed umount succeeds.
#
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
. ./common/filter

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

# real QA test starts here

# Modify as appropriate.
_supported_fs generic
_require_scratch

_scratch_mkfs > /dev/null 2>&1
_scratch_mount
for i in $(seq 0 500); do
	$XFS_IO_PROG -c "pwrite 0 4K" $SCRATCH_MNT/$i >/dev/null 2>&1
done
_scratch_unmount &
_scratch_mount
wait

echo "Silence is golden"

# success, all done
status=0
exit