#! /bin/bash
# FS QA Test No. 223
#
# File alignment tests
#
#-----------------------------------------------------------------------
# Copyright (c) 2010 Eric Sandeen.  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!

_cleanup()
{
    rm -f $tmp.*
}

trap "_cleanup ; exit \$status" 0 1 2 3 15

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

# real QA test starts here
_supported_fs generic
_supported_os Linux

_require_scratch
_require_xfs_io_command "falloc"

rm -f $seqres.full

BLOCKSIZE=4096

for SUNIT_K in 8 16 32 64 128; do
	let SUNIT_BYTES=$SUNIT_K*1024
	let SUNIT_BLOCKS=$SUNIT_BYTES/$BLOCKSIZE

	echo "=== mkfs with su $SUNIT_BLOCKS blocks x 4 ==="
	export MKFS_OPTIONS=""
	_scratch_mkfs_geom $SUNIT_BYTES 4 $BLOCKSIZE >> $seqres.full 2>&1
	_scratch_mount

	for SIZE_MULT in 1 2 8 64 256; do
		let SIZE=$SIZE_MULT*$SUNIT_BYTES

		echo "=== Testing size ${SIZE_MULT}*${SUNIT_K}k on ${SUNIT_K}k stripe ==="
		for FILE in 1 2 3 4; do
			$XFS_IO_PROG -f -c "falloc 0 $SIZE" \
				$SCRATCH_MNT/file-$FILE-$SIZE-falloc \
					>> $seqres.full 2>&1
			$XFS_IO_PROG -f -c "pwrite -b $SIZE 0 $SIZE" \
				$SCRATCH_MNT/file-$FILE-$SIZE-write \
					>> $seqres.full 2>&1
			src/t_stripealign $SCRATCH_MNT/file-$FILE-$SIZE-falloc \
				$SUNIT_BLOCKS | _filter_scratch
			src/t_stripealign $SCRATCH_MNT/file-$FILE-$SIZE-write \
				$SUNIT_BLOCKS | _filter_scratch
		done
	done

	echo "=== Testing size 1g falloc on ${SUNIT_K}k stripe ==="
	$XFS_IO_PROG -f -c "falloc 0 1g" \
	    $SCRATCH_MNT/file-1g-falloc >> $seqres.full 2>&1
	src/t_stripealign $SCRATCH_MNT/file-1g-falloc $SUNIT_BLOCKS \
	    | _filter_scratch

	rm -f $SCRATCH_MNT/file-1g-falloc | _filter_scratch

	echo "=== Testing size 1073745920 falloc on ${SUNIT_K}k stripe ==="
	$XFS_IO_PROG -f -c "falloc 0 1073745920" \
		$SCRATCH_MNT/file-1073745920-falloc >> $seqres.full 2>&1
	src/t_stripealign $SCRATCH_MNT/file-1073745920-falloc \
		$SUNIT_BLOCKS | _filter_scratch

	_scratch_unmount
done

status=0
exit
