#! /bin/bash
# FS QA Test No. 216
#
# log size mkfs test - ensure the log size scaling works for small filesystems
#
#-----------------------------------------------------------------------
# Copyright (c) 2008 Silicon Graphics, 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 xfs
_supported_os Linux

_require_scratch
_scratch_mkfs_xfs >/dev/null 2>&1
_scratch_mount

_require_loop
LOOP_DEV=$SCRATCH_MNT/test_fs
LOOP_MNT=$SCRATCH_MNT/test_fs_dir

_do_mkfs()
{
	for i in $*; do
		echo -n "fssize=${i}g "
		$MKFS_XFS_PROG -f -b size=4096 -l version=2 \
			-d name=$LOOP_DEV,size=${i}g |grep log
		mount -o loop -t xfs $LOOP_DEV $LOOP_MNT
		echo "test write" > $LOOP_MNT/test
		umount $LOOP_MNT > /dev/null 2>&1
	done
}
# make large holey file
$XFS_IO_PROG -f -c "truncate 256g" $LOOP_DEV

#make loopback mount dir
mkdir $LOOP_MNT

# walk over standard sizes (up to 256GB)
_do_mkfs 1 2 4 8 16 32 64 128 256

status=0
exit
