#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2008 Christoph Hellwig.
#
# FS QA Test No. 199
#
# Check that the features2 location fixups work correctly.  We check both
# a regular read-write mount of a filesystem and the case where the
# filesystem is first mounted read-only and then later remounted read-write,
# which is the usual case for the root filesystem.
#
. ./common/preamble
_begin_fstest mount auto quick

# Override the default cleanup function.
_cleanup()
{
	cd /
	_scratch_unmount >/dev/null 2>&1
}

# Import common functions.
. ./common/filter

# real QA test starts here
_supported_fs xfs

_require_scratch

# clear any mkfs options so that we can directly specify the options we need to
# be able to test the features bitmask behaviour correctly.
MKFS_OPTIONS=
_scratch_mkfs_xfs -m crc=0 -l lazy-count=1 >/dev/null 2>&1

# Grab the initial configuration. This checks mkfs sets the fields properly, and
# gives us the values the resultant tests should be the same as for testing at
# the end of the test. We don't hard code feature values, because that makes the
# test break every time we change mkfs feature defaults.
f2=`_scratch_xfs_get_sb_field features2`
bf2=`_scratch_xfs_get_sb_field bad_features2`

#
# Now clear the normal flags
#
echo "Clearing features2:"
_scratch_xfs_db -x  -c 'sb' -c 'write features2 0'

_scratch_mount
_scratch_unmount
rwf2=`_scratch_xfs_get_sb_field features2`

#
# Clear the normal flags again for the second rount.
#
echo "Clearing features2:"
_scratch_xfs_db -x  -c 'sb' -c 'write features2 0'

#
# And print the flags after a mount ro and remount rw
#
_scratch_mount -o ro
_scratch_mount -o remount,rw
_scratch_unmount
rof2=`_scratch_xfs_get_sb_field features2`

[ "$f2" != "$bf2" ] && echo "mkfs: features2 $f2 != bad_features2 $bf2"
[ "$f2" != "$rwf2" ] && echo "mount rw: old features2 $f2 != new features2 $rwf2"
[ "$f2" != "$rof2" ] && echo "ro->rw: old features2 $f2 != new features2 $rof2"

# success, all done
echo "*** done"
status=0