Add test to check new possibility of block-dirty-bitmap-merge command to merge allocation map of some node to target dirty bitmap.
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsement...@virtuozzo.com> --- .../tests/allocation-map-to-bitmap | 64 +++++++++++++++++++ .../tests/allocation-map-to-bitmap.out | 9 +++ 2 files changed, 73 insertions(+) create mode 100755 tests/qemu-iotests/tests/allocation-map-to-bitmap create mode 100644 tests/qemu-iotests/tests/allocation-map-to-bitmap.out diff --git a/tests/qemu-iotests/tests/allocation-map-to-bitmap b/tests/qemu-iotests/tests/allocation-map-to-bitmap new file mode 100755 index 0000000000..bd67eed884 --- /dev/null +++ b/tests/qemu-iotests/tests/allocation-map-to-bitmap @@ -0,0 +1,64 @@ +#!/usr/bin/env python3 +# +# Test parallels load bitmap +# +# Copyright (c) 2021 Virtuozzo International GmbH. +# +# 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 json +import iotests +from iotests import qemu_nbd_popen, qemu_img_pipe, log, file_path, qemu_img_create, qemu_io + +iotests.script_initialize(supported_fmts=['qcow2']) + +nbd_sock = file_path('nbd-sock', base_dir=iotests.sock_dir) +disk = iotests.file_path('disk') +bitmap = 'bitmap0' +nbd_opts = f'driver=nbd,server.type=unix,server.path={nbd_sock}' \ + f',x-dirty-bitmap=qemu:dirty-bitmap:{bitmap}' + +qemu_img_create('-f', 'qcow2', disk, '1M') + +qemu_io('-c', 'write 0 512', disk) # first 64K qcow2 cluster becomes allocated +qemu_io('-c', 'write 150K 100K', disk) # 3rd and 4th clusters become allocated + +vm = iotests.VM().add_drive(disk) +vm.launch() +vm.qmp_log('block-dirty-bitmap-add', node='drive0', name=bitmap, + persistent=True) +vm.qmp_log('block-dirty-bitmap-merge', node='drive0', target=bitmap, + bitmaps=[{'node': 'drive0', 'allocation-map': 'top'}]) +vm.shutdown() + +with qemu_nbd_popen('--read-only', f'--socket={nbd_sock}', + f'--bitmap={bitmap}', '-f', iotests.imgfmt, disk): + out = qemu_img_pipe('map', '--output=json', '--image-opts', nbd_opts) + chunks = json.loads(out) + cluster = 64 * 1024 + + log('dirty clusters (cluster size is 64K):') + for c in chunks: + assert c['start'] % cluster == 0 + assert c['length'] % cluster == 0 + if c['data']: + continue + + a = c['start'] // cluster + b = (c['start'] + c['length']) // cluster + if b - a > 1: + log(f'{a}-{b-1}') + else: + log(a) diff --git a/tests/qemu-iotests/tests/allocation-map-to-bitmap.out b/tests/qemu-iotests/tests/allocation-map-to-bitmap.out new file mode 100644 index 0000000000..6cfc42aa4e --- /dev/null +++ b/tests/qemu-iotests/tests/allocation-map-to-bitmap.out @@ -0,0 +1,9 @@ +{"execute": "block-dirty-bitmap-add", "arguments": {"name": "bitmap0", "node": "drive0", "persistent": true}} +{"return": {}} +{"execute": "block-dirty-bitmap-merge", "arguments": {"bitmaps": [{"allocation-map": "top", "node": "drive0"}], "node": "drive0", "target": "bitmap0"}} +{"return": {}} +Start NBD server +dirty clusters (cluster size is 64K): +0 +2-3 +Kill NBD server -- 2.29.2
