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#!/bin/bash
#
# qcow2 pattern test, empty and compressed image - 4k cluster patterns
#
# 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
. ./common.pattern
# much of this could be generic for any format supporting compression.
_supported_fmt qcow qcow2
_supported_os Linux
TEST_OFFSETS="0 4294967296"
TEST_OPS="writev read write readv"
CLUSTER_SIZE=4096
_make_test_img 6G
echo "Testing empty image"
echo
for offset in $TEST_OFFSETS; do
echo "At offset $offset:"
for op in $TEST_OPS; do
io_test $op $offset $CLUSTER_SIZE 8
done
_check_test_img
done
echo "Compressing image"
echo
mv $TEST_IMG $TEST_IMG.orig
$QEMU_IMG convert -f $IMGFMT -O $IMGFMT -c $TEST_IMG.orig $TEST_IMG
echo "Testing compressed image"
echo
for offset in $TEST_OFFSETS; do
echo "With offset $offset:"
for op in read readv; do
io_test $op $offset $CLUSTER_SIZE 8
done
_check_test_img
done
echo "Testing compressed image with odd offsets"
echo
for offset in $TEST_OFFSETS; do
# Some odd offset (1 sector), so tests will write to areas occupied partly
# by old (compressed) data and empty clusters
offset=$((offset + 512))
echo "With offset $offset:"
for op in $TEST_OPS; do
io_test $op $offset $CLUSTER_SIZE 8
done
_check_test_img
done
# success, all done
echo "*** done"
rm -f $seq.full
status=0
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