#! /bin/bash
# FS QA Test 417
#
# Test orphan inode / unlinked list processing on RO mount & RW transition
#
# A filesystem that crashes with open but unlinked inodes should
# be consistent after a ro, ro->rw, or rw mount cycle.
#
#-----------------------------------------------------------------------
# Copyright (c) 2017 Red Hat, Inc.  All Rights Reserved.
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation.
#
# This program is distributed in the hope that it would be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write the Free Software Foundation,
# Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
#-----------------------------------------------------------------------
#

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
_supported_fs generic
_supported_os Linux
_require_scratch
_require_scratch_shutdown
_require_metadata_journaling $SCRATCH_DEV
_require_test_program "multi_open_unlink"


function create_dirty_orphans() {

	_scratch_mount

	num_files=200
	num_eas=1
	ea_val_size=512

	# sleep for ages and we will kill this pid when we are ready
	delay=100

	echo "open and unlink $num_files files with EAs"
	src/multi_open_unlink -f $SCRATCH_MNT/test_file \
		-n $num_files -s $delay -e $num_eas -v $ea_val_size &
	pid=$!

	# time to create and unlink all the files
	sleep 3

	echo "godown"
	_scratch_shutdown -v -f >> $seqres.full

	# kill the multi_open_unlink
	kill $pid 2>/dev/null
	wait $pid 2>/dev/null
	pid=""

	_scratch_unmount
}

# Does a regular rw mount handle the orphan list?
echo "mount dirty orphans rw, then unmount"
create_dirty_orphans
_scratch_mount
_scratch_unmount
# We should be clean at this point
echo "check fs consistency"
_check_scratch_fs

# Does a ro mount handle the orphan list?
echo "mount dirty orphans ro, then unmount"
create_dirty_orphans
_scratch_mount -o ro
_scratch_unmount
# We should be clean at this point
echo "check fs consistency"
_check_scratch_fs

# Does a mount with ro->rw transition handle orphan list?
echo "mount dirty orphans ro and remount rw, then unmount"
create_dirty_orphans
_scratch_mount -o ro
_scratch_remount rw
_scratch_unmount
# We should be clean at this point
echo "check fs consistency"
_check_scratch_fs

# success, all done
status=0
exit