#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2016 Red Hat Inc. All Rights Reserved.
#
# FS QA Test 020
#
# Reproducer from kernel commit 3fe6e52
#    ovl: override creds with the ones from the superblock mounter
# Testing ovl copyup/namespace/cred issue.
#
seq=`basename $0`
seqres=$RESULT_DIR/$seq
echo "QA output created by $seq"

here=`pwd`
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/filter

# remove previous $seqres.full before test
rm -f $seqres.full

# real QA test starts here

require_unshare() {
	unshare -f -r "$@" true &>/dev/null || \
		_notrun "unshare $@: not supported"
}

# Modify as appropriate.
_supported_fs overlay
_require_scratch
require_unshare -m -p -U

# Remove all files from previous tests
_scratch_mkfs

lowerdir=$OVL_BASE_SCRATCH_MNT/$OVL_LOWER
mkdir -p $lowerdir/dir

_scratch_mount

unshare -m -p -f -U -r bash -c \
	"touch $SCRATCH_MNT/dir/{1,2,3}; rm -fR $SCRATCH_MNT/*"

echo "Silence is golden"

# success, all done
status=0
exit