#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2018 Oracle, Inc.  All Rights Reserved.
#
# FS QA Test No. 511
#
# Test a specific sequence of fsx operations that causes an mmap read past
# eof to return nonzero contents.
#
seq=`basename $0`
seqres=$RESULT_DIR/$seq
echo "QA output created by $seq"
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/punch

# real QA test starts here
_supported_fs generic
_require_scratch
_require_xfs_io_command "falloc" "-k"
_require_xfs_io_command "fzero"

rm -f $seqres.full

_scratch_mkfs_sized $((1024 * 1024 * 256)) >>$seqres.full 2>&1
_scratch_mount

$XFS_IO_PROG -fc "pwrite 0 256m" -c fsync $SCRATCH_MNT/file >>$seqres.full 2>&1
rm -f $SCRATCH_MNT/file

cat >> $tmp.fsxops << ENDL
truncate 0x0 0x1f0d6 0x380e1
write 0x1ad87 0x6c99 0x180d6
zero_range 0x14426 0xd3aa 0x21a20 keep_size
mapread 0x1f69a 0x2386 0x21a20
ENDL

victim=$SCRATCH_MNT/a
touch $victim
$here/ltp/fsx --replay-ops $tmp.fsxops $victim > $tmp.output 2>&1 || cat $tmp.output

echo "Silence is golden"
status=0
exit