| #!/usr/bin/env python3 |
| # group: rw quick |
| # |
| # Tests that "bdrv_drain_all" doesn't drain block jobs |
| # |
| # Copyright (C) 2015 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/>. |
| # |
| |
| import os |
| import iotests |
| |
| class TestStopWithBlockJob(iotests.QMPTestCase): |
| test_img = os.path.join(iotests.test_dir, 'test.img') |
| target_img = os.path.join(iotests.test_dir, 'target.img') |
| base_img = os.path.join(iotests.test_dir, 'base.img') |
| overlay_img = os.path.join(iotests.test_dir, 'overlay.img') |
| |
| def setUp(self): |
| iotests.qemu_img('create', '-f', iotests.imgfmt, self.base_img, "1G") |
| iotests.qemu_img('create', '-f', iotests.imgfmt, self.test_img, |
| "-b", self.base_img, '-F', iotests.imgfmt) |
| iotests.qemu_io('-f', iotests.imgfmt, '-c', 'write -P0x5d 1M 128M', |
| self.test_img) |
| self.vm = iotests.VM() |
| self.vm.add_object('throttle-group,id=tg0,x-bps-total=1024') |
| |
| source_drive = 'driver=throttle,' \ |
| 'node-name=source,' \ |
| 'throttle-group=tg0,' \ |
| f'file.driver={iotests.imgfmt},' \ |
| f'file.file.filename={self.test_img}' |
| |
| self.vm.add_drive(None, source_drive) |
| self.vm.launch() |
| |
| def tearDown(self): |
| self.vm.shutdown() |
| for img in (self.test_img, self.target_img, self.base_img, |
| self.overlay_img): |
| iotests.try_remove(img) |
| |
| def do_test_stop(self, cmd, **args): |
| """Test 'stop' while block job is running on a throttled drive. |
| The 'stop' command shouldn't drain the job""" |
| result = self.vm.qmp(cmd, **args) |
| self.assert_qmp(result, 'return', {}) |
| |
| result = self.vm.qmp("stop") |
| self.assert_qmp(result, 'return', {}) |
| result = self.vm.qmp("query-block-jobs") |
| |
| self.assert_qmp(result, 'return[0]/status', 'running') |
| self.assert_qmp(result, 'return[0]/ready', False) |
| |
| def test_drive_mirror(self): |
| self.do_test_stop("drive-mirror", device="drive0", |
| target=self.target_img, format=iotests.imgfmt, |
| sync="full", buf_size=65536) |
| |
| def test_drive_backup(self): |
| # Limit max-chunk and max-workers so that block-copy will not |
| # launch so many workers working on so much data each that |
| # stop's bdrv_drain_all() would finish the job |
| self.do_test_stop("drive-backup", device="drive0", |
| target=self.target_img, format=iotests.imgfmt, |
| sync="full", |
| x_perf={ 'max-chunk': 65536, |
| 'max-workers': 8 }) |
| |
| def test_block_commit(self): |
| # Add overlay above the source node so that we actually use a |
| # commit job instead of a mirror job |
| |
| iotests.qemu_img('create', '-f', iotests.imgfmt, self.overlay_img, |
| '1G') |
| |
| result = self.vm.qmp('blockdev-add', **{ |
| 'node-name': 'overlay', |
| 'driver': iotests.imgfmt, |
| 'file': { |
| 'driver': 'file', |
| 'filename': self.overlay_img |
| } |
| }) |
| self.assert_qmp(result, 'return', {}) |
| |
| result = self.vm.qmp('blockdev-snapshot', |
| node='source', overlay='overlay') |
| self.assert_qmp(result, 'return', {}) |
| |
| self.do_test_stop('block-commit', device='drive0', top_node='source') |
| |
| if __name__ == '__main__': |
| iotests.main(supported_fmts=["qcow2"], |
| supported_protocols=["file"]) |
