#! /bin/bash
# FSQA Test No. 167
#
# unwritten extent conversion test
#
#-----------------------------------------------------------------------
# Copyright (c) 2007 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
#
#-----------------------------------------------------------------------
#

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

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

_cleanup()
{
	$KILLALL_PROG -r -q -TERM fsstress 2> /dev/null
	sync	# ensures all fsstress processes died
}

workout()
{
	procs=100
	nops=15000
	FSSTRESS_ARGS=`_scale_fsstress_args -d $SCRATCH_MNT -p $procs -n $nops \
	    $FSSTRESS_AVOID`
	$FSSTRESS_PROG $FSSTRESS_ARGS >> $seqres.full &
	sleep 2
}

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

# real QA test starts here
_supported_fs xfs
_supported_os Linux

[ -n "$KILLALL_PROG" ] || _notrun "killall executable not found"

_require_scratch
_scratch_mkfs_xfs >/dev/null 2>&1
_scratch_mount

# fast devices can consume disk space at a rate of 1GB every 5s via the
# background workload. With 50 test loops, at 1 second per loop, that means we
# need at least 10GB of disk space to ensure this test will not fail with ENOSPC
# errors.
_require_fs_space $SCRATCH_MNT 10485760

# fast devices can consume disk space at a rate of 1GB every 5s via the
# background workload. With 50 test loops, at 1 second per loop, that means we
# need at least 10GB of disk space to ensure this test will not fail with ENOSPC
# errors.
_require_fs_space $SCRATCH_MNT 10485760

TEST_FILE=$SCRATCH_MNT/test_file
TEST_PROG=$here/src/unwritten_sync
LOOPS=50

echo "*** test unwritten extent conversion under heavy I/O"

workout

rm -f $TEST_FILE
$TEST_PROG $LOOPS $TEST_FILE

echo "     *** test done"

status=0
exit