This test shows that external snapshots and incremental backups are friends.
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsement...@virtuozzo.com> --- tests/qemu-iotests/254 | 52 ++++++++++++++++++++++++++++++++++++++ tests/qemu-iotests/254.out | 52 ++++++++++++++++++++++++++++++++++++++ tests/qemu-iotests/group | 1 + 3 files changed, 105 insertions(+) create mode 100755 tests/qemu-iotests/254 create mode 100644 tests/qemu-iotests/254.out diff --git a/tests/qemu-iotests/254 b/tests/qemu-iotests/254 new file mode 100755 index 0000000000..33cb80a512 --- /dev/null +++ b/tests/qemu-iotests/254 @@ -0,0 +1,52 @@ +#!/usr/bin/env python +# +# Test external snapshot with bitmap copying. +# +# Copyright (c) 2019 Virtuozzo International GmbH. 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; 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/>. +# + +import iotests +from iotests import qemu_img_create, file_path, log + +disk, top = file_path('disk', 'top') +size = 1024 * 1024 + +qemu_img_create('-f', iotests.imgfmt, disk, str(size)) + +vm = iotests.VM().add_drive(disk, opts='node-name=base') +vm.launch() + +vm.qmp_log('block-dirty-bitmap-add', node='drive0', name='bitmap0') + +vm.hmp_qemu_io('drive0', 'write 0 512K') + +vm.qmp_log('transaction', indent=2, actions=[ + {'type': 'blockdev-snapshot-sync', + 'data': {'device': 'drive0', 'snapshot-file': top, + 'snapshot-node-name': 'snap'}}, + {'type': 'block-dirty-bitmap-add', + 'data': {'node': 'snap', 'name': 'bitmap0'}}, + {'type': 'block-dirty-bitmap-merge', + 'data': {'node': 'snap', 'target': 'bitmap0', + 'bitmaps': [{'node': 'base', 'name': 'bitmap0'}]}} +], filters=[iotests.filter_qmp_testfiles]) + +result = vm.qmp('query-block')['return'][0] +log("query-block: device = {}, node-name = {}, dirty-bitmaps:".format( + result['device'], result['inserted']['node-name'])) +log(result['dirty-bitmaps'], indent=2) + +vm.shutdown() diff --git a/tests/qemu-iotests/254.out b/tests/qemu-iotests/254.out new file mode 100644 index 0000000000..d7394cf002 --- /dev/null +++ b/tests/qemu-iotests/254.out @@ -0,0 +1,52 @@ +{"execute": "block-dirty-bitmap-add", "arguments": {"name": "bitmap0", "node": "drive0"}} +{"return": {}} +{ + "execute": "transaction", + "arguments": { + "actions": [ + { + "data": { + "device": "drive0", + "snapshot-file": "TEST_DIR/PID-top", + "snapshot-node-name": "snap" + }, + "type": "blockdev-snapshot-sync" + }, + { + "data": { + "name": "bitmap0", + "node": "snap" + }, + "type": "block-dirty-bitmap-add" + }, + { + "data": { + "bitmaps": [ + { + "name": "bitmap0", + "node": "base" + } + ], + "node": "snap", + "target": "bitmap0" + }, + "type": "block-dirty-bitmap-merge" + } + ] + } +} +{ + "return": {} +} +query-block: device = drive0, node-name = snap, dirty-bitmaps: +[ + { + "busy": false, + "count": 524288, + "granularity": 65536, + "name": "bitmap0", + "persistent": false, + "recording": true, + "status": "active" + } +] diff --git a/tests/qemu-iotests/group b/tests/qemu-iotests/group index 00e474ab0a..5552d0153c 100644 --- a/tests/qemu-iotests/group +++ b/tests/qemu-iotests/group @@ -250,3 +250,4 @@ 248 rw auto quick 249 rw auto quick 252 rw auto backing quick +254 rw auto backing quick -- 2.18.0
