#! /bin/bash
# FS QA Test No. 236
#
# Check ctime updated or not if file linked
# See also http://marc.info/?l=linux-btrfs&m=127434439020230&w=2
#
#-----------------------------------------------------------------------
# Copyright (c) 2010 FUJITSU LIMITED. 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
#
#-----------------------------------------------------------------------
#
# creator
owner=shiwh@cn.fujitsu.com

seq=`basename $0`
echo "QA output created by $seq"

_cleanup()
{
	rm -f $TEST_DIR/ouch*
}

here=`pwd`
status=1	# failure is the default!
trap "_cleanup; exit \$status" 0 1 2 3 15

# get standard environment, filters and checks
. ./common.rc

# real QA test starts here
_supported_fs generic
# only Linux supports fallocate
_supported_os Linux

rm -f $TEST_DIR/ouch*

# create a file and get its ctime
touch $TEST_DIR/ouch
ctime=`stat -c %Z $TEST_DIR/ouch`
sleep 1

# create a link to a file and get existing file's ctime
link $TEST_DIR/ouch $TEST_DIR/ouch2
ctime2=`stat -c %Z $TEST_DIR/ouch`

# check ctime updated
if [ $ctime2 -le $ctime ]; then
	echo "ctime: $ctime -> $ctime2 "
	echo "Fatal error: ctime not updated after link"
	_cleanup
	exit 1
fi

echo "Test over."
# success, all done
status=0
exit