#! /bin/bash
# FSQA Test No. 269
#
# Run fsstress and ENSPC hitters in parallel, check fs consistency an the end
#
#-----------------------------------------------------------------------
# Copyright (c) 2006 Silicon Graphics, Inc.  All Rights Reserved.
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation.
#
# This program is distributed in the hope that it would be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write the Free Software Foundation,
# Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
#
#-----------------------------------------------------------------------
#
# creator
owner=dmonakhov@openvz.org

seq=`basename $0`
echo "QA output created by $seq"

here=`pwd`
tmp=/tmp/$$
status=1	# failure is the default!
trap "rm -f $tmp.*; exit \$status" 0 1 2 3 15

# get standard environment, filters and checks
. ./common.rc
. ./common.filter
# Disable all sync operations to get higher load
FSSTRESS_AVOID="$FSSTRESS_AVOID -ffsync=0 -fsync=0 -ffdatasync=0"
_workout()
{
	echo ""
	echo "Run fsstress"
	echo ""
	num_iterations=10
	enospc_time=2
	out=$SCRATCH_MNT/fsstress.$$
	args="-p128 -n999999999 -f setattr=1 $FSSTRESS_AVOID -d $out"
	echo "fsstress $args" >> $here/$seq.full
	$FSSTRESS_PROG $args > /dev/null 2>&1 &
	pid=$!
	echo "Run dd writers in parallel"
	for ((i=0; i < num_iterations; i++))
	do
		# File will be opened with O_TRUNC each time
		dd if=/dev/zero of=$SCRATCH_MNT/SPACE_CONSUMER bs=1M \
			>> $here/$seq.full 2>&1
		sleep $enospc_time
	done
	kill $pid
	wait $pid
}

# real QA test starts here
_supported_fs generic
_supported_os Linux
_need_to_be_root
_require_scratch

_scratch_mkfs_sized $((512 * 1024 * 1024)) >> $seq.full 2>&1
_scratch_mount

if ! _workout; then
	umount $SCRATCH_DEV 2>/dev/null
	exit
fi

if ! _scratch_unmount; then
	echo "failed to umount"
	status=1
	exit
fi
_check_scratch_fs
status=$?
exit