#! /bin/bash
# SPDX-License-Identifier: GPL-2.0-or-later
# Copyright (c) 2022 Oracle.  All Rights Reserved.
#
# FS QA Test No. 753
#
# Populate a XFS filesystem and fuzz every cntbt field.
# Try online repair and, if necessary, offline repair,
# to test the most likely usage pattern.

. ./common/preamble
_begin_fstest dangerous_fuzzers dangerous_bothrepair

_register_cleanup "_cleanup" BUS

# Import common functions.
. ./common/filter
. ./common/populate
. ./common/fuzzy

# real QA test starts here
_supported_fs xfs
_require_scratch_xfs_fuzz_fields
_disable_dmesg_check

echo "Format and populate"
_scratch_populate_cached nofill > $seqres.full 2>&1

path="$(_scratch_xfs_find_agbtree_height 'cnt' 2)" || \
	_fail "could not find two-level cntbt"

echo "Fuzz cntbt"
_scratch_xfs_fuzz_metadata '' 'both'  "$path" 'addr cntroot' 'addr ptrs[1]' >> $seqres.full
echo "Done fuzzing cntbt"

# success, all done
status=0
exit