Archipelago » qemu

#!/bin/bash

#

# Test for AIO allocation on the same cluster

#

# Copyright (C) 2009 Red Hat, Inc.

#

# 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; either version 2 of the License, or

# (at your option) any later version.

#

# This program is distributed in the hope that it will 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, see <http://www.gnu.org/licenses/>.

#

# creator

owner=kwolf@redhat.com

seq=`basename $0`

echo "QA output created by $seq"

here=`pwd`

tmp=/tmp/$$

status=1	# failure is the default!

_cleanup()

{

	_cleanup_test_img

}

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

# get standard environment, filters and checks

. ./common.rc

. ./common.filter

_supported_fmt generic

_supported_proto generic

_supported_os Linux

size=6G

echo

echo "creating image"

_make_test_img $size

echo

echo "overlapping I/O"

for i in `seq 1 10`; do

    let mb=1024*1024

    let off1=$i*$mb

    let off2=$off1+512

    # Note that we filter away the actual offset.  That's because qemu

    # may re-order the two aio requests.  We only want to make sure the

    # filesystem isn't corrupted afterwards anyway.

    $QEMU_IO -c "aio_write $off1 1M" -c "aio_write $off2 1M" $TEST_IMG | \

    	_filter_qemu_io | \

	sed -e 's/bytes at offset [0-9]*/bytes at offset XXX/g'

done

echo

echo "checking image for errors"

_check_test_img

# success, all done

echo "*** done"

rm -f $seq.full

status=0