| #!/usr/bin/env python3 |
| # |
| # Test removing persistent bitmap from backing |
| # |
| # 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 iotests |
| from iotests import log, qemu_img_create, qemu_img, qemu_img_pipe |
| |
| iotests.script_initialize(supported_fmts=['qcow2']) |
| |
| top, base = iotests.file_path('top', 'base') |
| size = '1M' |
| |
| assert qemu_img_create('-f', iotests.imgfmt, base, size) == 0 |
| assert qemu_img_create('-f', iotests.imgfmt, '-b', base, |
| '-F', iotests.imgfmt, top, size) == 0 |
| |
| assert qemu_img('bitmap', '--add', base, 'bitmap0') == 0 |
| # Just assert that our method of checking bitmaps in the image works. |
| assert 'bitmaps' in qemu_img_pipe('info', base) |
| |
| vm = iotests.VM().add_drive(top, 'backing.node-name=base') |
| vm.launch() |
| |
| log('Trying to remove persistent bitmap from r-o base node, should fail:') |
| vm.qmp_log('block-dirty-bitmap-remove', node='base', name='bitmap0') |
| |
| new_base_opts = { |
| 'options': [{ |
| 'node-name': 'base', |
| 'driver': 'qcow2', |
| 'file': { |
| 'driver': 'file', |
| 'filename': base |
| }, |
| 'read-only': False |
| }] |
| } |
| |
| # Don't want to bother with filtering qmp_log for reopen command |
| result = vm.qmp('blockdev-reopen', **new_base_opts) |
| if result != {'return': {}}: |
| log('Failed to reopen: ' + str(result)) |
| |
| log('Remove persistent bitmap from base node reopened to RW:') |
| vm.qmp_log('block-dirty-bitmap-remove', node='base', name='bitmap0') |
| |
| new_base_opts['options'][0]['read-only'] = True |
| result = vm.qmp('blockdev-reopen', **new_base_opts) |
| if result != {'return': {}}: |
| log('Failed to reopen: ' + str(result)) |
| |
| vm.shutdown() |
| |
| if 'bitmaps' in qemu_img_pipe('info', base): |
| log('ERROR: Bitmap is still in the base image') |