4 # Tests that "bdrv_drain_all" doesn't drain block jobs
6 # Copyright (C) 2015 Red Hat, Inc.
8 # This program is free software; you can redistribute it and/or modify
9 # it under the terms of the GNU General Public License as published by
10 # the Free Software Foundation; either version 2 of the License, or
11 # (at your option) any later version.
13 # This program is distributed in the hope that it will be useful,
14 # but WITHOUT ANY WARRANTY; without even the implied warranty of
15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 # GNU General Public License for more details.
18 # You should have received a copy of the GNU General Public License
19 # along with this program. If not, see <http://www.gnu.org/licenses/>.
25 class TestStopWithBlockJob(iotests.QMPTestCase):
26 test_img = os.path.join(iotests.test_dir, 'test.img')
27 target_img = os.path.join(iotests.test_dir, 'target.img')
28 base_img = os.path.join(iotests.test_dir, 'base.img')
29 overlay_img = os.path.join(iotests.test_dir, 'overlay.img')
32 iotests.qemu_img('create', '-f', iotests.imgfmt, self.base_img, "1G")
33 iotests.qemu_img('create', '-f', iotests.imgfmt, self.test_img,
34 "-b", self.base_img, '-F', iotests.imgfmt)
35 iotests.qemu_io('-f', iotests.imgfmt, '-c', 'write -P0x5d 1M 128M',
37 self.vm = iotests.VM()
38 self.vm.add_object('throttle-group,id=tg0,x-bps-total=1024')
40 source_drive = 'driver=throttle,' \
42 'throttle-group=tg0,' \
43 f'file.driver={iotests.imgfmt},' \
44 f'file.file.filename={self.test_img}'
46 self.vm.add_drive(None, source_drive)
51 for img in (self.test_img, self.target_img, self.base_img,
53 iotests.try_remove(img)
55 def do_test_stop(self, cmd, **args):
56 """Test 'stop' while block job is running on a throttled drive.
57 The 'stop' command shouldn't drain the job"""
58 result = self.vm.qmp(cmd, **args)
59 self.assert_qmp(result, 'return', {})
61 result = self.vm.qmp("stop")
62 self.assert_qmp(result, 'return', {})
63 result = self.vm.qmp("query-block-jobs")
65 self.assert_qmp(result, 'return[0]/status', 'running')
66 self.assert_qmp(result, 'return[0]/ready', False)
68 def test_drive_mirror(self):
69 self.do_test_stop("drive-mirror", device="drive0",
70 target=self.target_img, format=iotests.imgfmt,
71 sync="full", buf_size=65536)
73 def test_drive_backup(self):
74 # Limit max-chunk and max-workers so that block-copy will not
75 # launch so many workers working on so much data each that
76 # stop's bdrv_drain_all() would finish the job
77 self.do_test_stop("drive-backup", device="drive0",
78 target=self.target_img, format=iotests.imgfmt,
80 x_perf={'max-chunk': 65536,
83 def test_block_commit(self):
84 # Add overlay above the source node so that we actually use a
85 # commit job instead of a mirror job
87 iotests.qemu_img('create', '-f', iotests.imgfmt, self.overlay_img,
90 result = self.vm.qmp('blockdev-add', **{
91 'node-name': 'overlay',
92 'driver': iotests.imgfmt,
95 'filename': self.overlay_img
98 self.assert_qmp(result, 'return', {})
100 result = self.vm.qmp('blockdev-snapshot',
101 node='source', overlay='overlay')
102 self.assert_qmp(result, 'return', {})
104 self.do_test_stop('block-commit', device='drive0', top_node='source')
106 if __name__ == '__main__':
107 iotests.main(supported_fmts=["qcow2"],
108 supported_protocols=["file"])