#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2015 Oracle, Inc.  All Rights Reserved.
#
# FS QA Test No. 161
#
# Test for race between delete a file while rewriting its reflinked twin
#
. ./common/preamble
_begin_fstest auto quick clone

_register_cleanup "_cleanup" BUS

# Override the default cleanup function.
_cleanup()
{
    cd /
    rm -rf $tmp.*
    wait
}

# Import common functions.
. ./common/filter
. ./common/reflink

# real QA test starts here
_require_scratch_reflink
_require_cp_reflink

echo "Format and mount"
_scratch_mkfs > $seqres.full 2>&1
_scratch_mount >> $seqres.full 2>&1

testdir=$SCRATCH_MNT/test-$seq
mkdir $testdir

loops=4096
blksz=65536

echo "Initialize files"
echo >> $seqres.full
_pwrite_byte 0x61 0 $((loops * blksz)) $testdir/file1 >> $seqres.full
_cp_reflink $testdir/file1 $testdir/file2
_scratch_cycle_mount

echo "Delete while rewriting"
rm -rf $testdir/file1 &
_pwrite_byte 0x62 0 $((loops * blksz)) $testdir/file1 >> $seqres.full
wait

# success, all done
status=0
exit