qemu-iotests: Test commit block job where top has two parents

#!/bin/bash

#

# Test commit block job where top has two parents

#

# Copyright (C) 2017 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`

status=1 # failure is the default!

MIG_SOCKET="${TEST_DIR}/migrate"

_cleanup()

{

    rm -f "${TEST_IMG}.mid"

    rm -f "${TEST_IMG}.ovl2"

    rm -f "${TEST_IMG}.ovl3"

    _cleanup_test_img

    _cleanup_qemu

}

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

# get standard environment, filters and checks

. ./common.rc

. ./common.filter

. ./common.qemu

_supported_fmt qcow2

_unsupported_imgopts compat=0.10

_supported_proto file

_supported_os Linux

size=64M

echo

echo === Preparing and starting VM ===

echo

TEST_IMG="${TEST_IMG}.base" _make_test_img $size

TEST_IMG="${TEST_IMG}.mid" _make_test_img -b "${TEST_IMG}.base"

_make_test_img -b "${TEST_IMG}.mid"

TEST_IMG="${TEST_IMG}.ovl2" _make_test_img -b "${TEST_IMG}.mid"

$QEMU_IO -c 'write -P 0x55 1M 64k' "${TEST_IMG}.mid" | _filter_qemu_io

qemu_comm_method="qmp"

qmp_pretty="y"

_launch_qemu \

    -blockdev "driver=${IMGFMT},file.driver=file,file.filename=${TEST_IMG}.base,node-name=base" \

    -blockdev "driver=${IMGFMT},file.driver=file,file.filename=${TEST_IMG}.mid,node-name=mid,backing=base" \

    -blockdev "driver=${IMGFMT},file.driver=file,file.filename=${TEST_IMG},node-name=top,backing=mid" \

    -blockdev "driver=${IMGFMT},file.driver=file,file.filename=${TEST_IMG}.ovl2,node-name=top2,backing=mid"

h=$QEMU_HANDLE

_send_qemu_cmd $h "{ 'execute': 'qmp_capabilities' }" '^}'

echo

echo === Perform commit job ===

echo

_send_qemu_cmd $h \

    "{ 'execute': 'block-commit',

       'arguments': { 'job-id': 'commit0',

                      'device': 'top',

                      'base':'$TEST_IMG.base',

                      'top': '$TEST_IMG.mid' } }" \

    "BLOCK_JOB_COMPLETED"

_send_qemu_cmd $h "" "^}"

echo

echo === Check that both top and top2 point to base now ===

echo

_send_qemu_cmd $h "{ 'execute': 'query-named-block-nodes' }" "^}" |

    _filter_generated_node_ids

_send_qemu_cmd $h "{ 'execute': 'quit' }" "^}"

wait=1 _cleanup_qemu

_img_info

TEST_IMG="$TEST_IMG.ovl2" _img_info

echo

echo === Preparing and starting VM with -drive ===

echo

TEST_IMG="${TEST_IMG}.base" _make_test_img $size

TEST_IMG="${TEST_IMG}.mid" _make_test_img -b "${TEST_IMG}.base"

_make_test_img -b "${TEST_IMG}.mid"

TEST_IMG="${TEST_IMG}.ovl2" _make_test_img -b "${TEST_IMG}.mid"

TEST_IMG="${TEST_IMG}.ovl3" _make_test_img -b "${TEST_IMG}.ovl2"

$QEMU_IO -c 'write -P 0x55 1M 64k' "${TEST_IMG}.mid" | _filter_qemu_io

qemu_comm_method="qmp"

qmp_pretty="y"

_launch_qemu \

    -drive "driver=${IMGFMT},file=${TEST_IMG},node-name=top,backing.node-name=mid" \

    -drive "driver=${IMGFMT},file=${TEST_IMG}.ovl3,node-name=top2,backing.backing=mid"

h=$QEMU_HANDLE

_send_qemu_cmd $h "{ 'execute': 'qmp_capabilities' }" '^}'

echo

echo === Perform commit job ===

echo

_send_qemu_cmd $h \

    "{ 'execute': 'block-commit',

       'arguments': { 'job-id': 'commit0',

                      'device': 'top',

                      'base':'$TEST_IMG.base',

                      'top': '$TEST_IMG.mid' } }" \

    "BLOCK_JOB_COMPLETED"

_send_qemu_cmd $h "" "^}"

echo

echo === Check that both top and top2 point to base now ===

echo

_send_qemu_cmd $h "{ 'execute': 'query-named-block-nodes' }" "^}" |

    _filter_generated_node_ids

_send_qemu_cmd $h "{ 'execute': 'quit' }" "^}"

wait=1 _cleanup_qemu

_img_info

TEST_IMG="$TEST_IMG.ovl2" _img_info

# success, all done

echo "*** done"

rm -f $seq.full

status=0

188 rw auto quick

189 rw auto

190 rw auto quick

191 rw auto

192 rw auto quick

194 rw auto migration quick

195 rw auto quick