#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (C) 2014 Red Hat Inc. All rights reserved.
#
# FSQA Test No. btrfs/067
#
# Run btrfs subvolume create/mount/umount/delete and btrfs defrag
# operation simultaneously, with fsstress running in background.
#
. ./common/preamble
_begin_fstest auto subvol defrag compress scrub

_cleanup()
{
	cd /
	rm -rf $tmp.*
	if [ ! -z "$stop_file" ] && [ ! -z "$subvol_pid" ]; then
		_btrfs_kill_stress_subvolume_pid $subvol_pid $stop_file
	fi
	if [ ! -z "$defrag_pid" ]; then
		_btrfs_kill_stress_defrag_pid $defrag_pid
	fi
	if [ ! -z "$fsstress_pid" ]; then
		kill $fsstress_pid &> /dev/null
		wait $fsstress_pid &> /dev/null
	fi
}

. ./common/filter

_supported_fs btrfs
# we check scratch dev after each loop
_require_scratch_nocheck
_require_scratch_dev_pool 4
_btrfs_get_profile_configs

stop_file=$TEST_DIR/$seq.stop.$$

run_test()
{
	local mkfs_opts=$1
	local with_compress=$2
	local subvol_mnt=$TEST_DIR/$seq.mnt

	echo "Test $mkfs_opts with $with_compress" >>$seqres.full

	_scratch_pool_mkfs $mkfs_opts >>$seqres.full 2>&1
	# make sure we created btrfs with desired options
	if [ $? -ne 0 ]; then
		echo "mkfs $mkfs_opts failed"
		return
	fi
	_scratch_mount >>$seqres.full 2>&1

	args=`_scale_fsstress_args -p 20 -n 100 $FSSTRESS_AVOID -d $SCRATCH_MNT/stressdir`
	echo "Run fsstress $args" >>$seqres.full
	$FSSTRESS_PROG $args >>$seqres.full &
	fsstress_pid=$!

	echo -n "Start subvolume worker: " >>$seqres.full
	_btrfs_stress_subvolume $SCRATCH_DEV $SCRATCH_MNT subvol_$$ $subvol_mnt $stop_file >/dev/null 2>&1 &
	subvol_pid=$!
	echo "$subvol_pid" >>$seqres.full

	echo -n "Start defrag worker: " >>$seqres.full
	_btrfs_stress_defrag $SCRATCH_MNT $with_compress >/dev/null 2>&1 &
	defrag_pid=$!
	echo "$defrag_pid" >>$seqres.full

	echo "Wait for fsstress to exit and kill all background workers" >>$seqres.full
	wait $fsstress_pid
	unset fsstress_pid

	_btrfs_kill_stress_subvolume_pid $subvol_pid $stop_file
	unset subvol_pid
	_btrfs_kill_stress_defrag_pid $defrag_pid
	unset defrag_pid

	echo "Scrub the filesystem" >>$seqres.full
	$BTRFS_UTIL_PROG scrub start -B $SCRATCH_MNT >>$seqres.full 2>&1
	if [ $? -ne 0 ]; then
		echo "Scrub find errors in \"$mkfs_opts\" test" | tee -a $seqres.full
	fi

	# in case the subvolume is still mounted
	$UMOUNT_PROG $subvol_mnt >/dev/null 2>&1
	_scratch_unmount
	# we called _require_scratch_nocheck instead of _require_scratch
	# do check after test for each profile config
	_check_scratch_fs
}

echo "Silence is golden"
for t in "${_btrfs_profile_configs[@]}"; do
	run_test "$t" nocompress
	run_test "$t" compress
done

status=0
exit