#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2007 Silicon Graphics, Inc.  All Rights Reserved.
#
# FSQA Test No. 167
#
# unwritten extent conversion test
#
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
	wait	# 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

_require_command "$KILLALL_PROG" killall
_require_xfs_io_command "falloc"

_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

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