tests/shared/001

#! /bin/bash
# FS QA Test No. 001
#
# Test truncate orphan inodes when mounting extN.
# ext4 used to hit WARNING, this commit fixed the issue
#
# 721e3eb ext4: lock i_mutex when truncating orphan inodes
#
#-----------------------------------------------------------------------
# Copyright (c) 2015 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

# real QA test starts here
_supported_fs ext2 ext3 ext4
_supported_os Linux
_require_scratch

rm -f $seqres.full
echo "Silence is golden"

_scratch_mkfs_sized $((16*1024*1024)) >>$seqres.full 2>&1
_scratch_mount

# create a file and get its inode number, usually it's 12, but to be accurate
testfile=$SCRATCH_MNT/testfile
touch $testfile
inode=`ls -i $testfile | awk '{print $1}'`

# add the inode in orphan inode list
_scratch_unmount
debugfs -w -R "set_super_value last_orphan $inode" $SCRATCH_DEV \
	>>$seqres.full 2>&1

# mount again to truncate orphan inode, _check_dmesg will catch the WARNING
_scratch_mount

status=0
exit