e60edf69e2
This patch drops the 'x-' prefix from x-blockdev-reopen. Signed-off-by: Alberto Garcia <berto@igalia.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Message-Id: <20210708114709.206487-7-kwolf@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
326 lines
12 KiB
Python
Executable File
326 lines
12 KiB
Python
Executable File
#!/usr/bin/env python3
|
|
# group: rw
|
|
#
|
|
# Test whether the backing BDSs are correct after completion of a
|
|
# mirror block job; in "existing" modes (drive-mirror with
|
|
# mode=existing and blockdev-mirror) the backing chain should not be
|
|
# overridden.
|
|
#
|
|
# Copyright (C) 2016 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
|
|
from iotests import qemu_img
|
|
|
|
back0_img = os.path.join(iotests.test_dir, 'back0.' + iotests.imgfmt)
|
|
back1_img = os.path.join(iotests.test_dir, 'back1.' + iotests.imgfmt)
|
|
back2_img = os.path.join(iotests.test_dir, 'back2.' + iotests.imgfmt)
|
|
source_img = os.path.join(iotests.test_dir, 'source.' + iotests.imgfmt)
|
|
target_img = os.path.join(iotests.test_dir, 'target.' + iotests.imgfmt)
|
|
|
|
|
|
# Class variables for controlling its behavior:
|
|
#
|
|
# existing: If True, explicitly create the target image and blockdev-add it
|
|
# target_backing: If existing is True: Use this filename as the backing file
|
|
# of the target image
|
|
# (None: no backing file)
|
|
# target_blockdev_backing: If existing is True: Pass this dict as "backing"
|
|
# for the blockdev-add command
|
|
# (None: do not pass "backing")
|
|
# target_real_backing: If existing is True: The real filename of the backing
|
|
# image during runtime, only makes sense if
|
|
# target_blockdev_backing is not None
|
|
# (None: same as target_backing)
|
|
# target_open_with_backing: If True, the target image is added with its backing
|
|
# chain opened right away. If False, blockdev-add
|
|
# opens it without a backing file and job completion
|
|
# is supposed to open the backing chain.
|
|
# use_iothread: If True, an iothread is configured for the virtio-blk device
|
|
# that uses the image being mirrored
|
|
|
|
class BaseClass(iotests.QMPTestCase):
|
|
target_blockdev_backing = None
|
|
target_real_backing = None
|
|
target_open_with_backing = True
|
|
use_iothread = False
|
|
|
|
def setUp(self):
|
|
qemu_img('create', '-f', iotests.imgfmt, back0_img, '1440K')
|
|
qemu_img('create', '-f', iotests.imgfmt, '-b', back0_img,
|
|
'-F', iotests.imgfmt, back1_img)
|
|
qemu_img('create', '-f', iotests.imgfmt, '-b', back1_img,
|
|
'-F', iotests.imgfmt, back2_img)
|
|
qemu_img('create', '-f', iotests.imgfmt, '-b', back2_img,
|
|
'-F', iotests.imgfmt, source_img)
|
|
|
|
self.vm = iotests.VM()
|
|
# Add the BDS via blockdev-add so it stays around after the mirror block
|
|
# job has been completed
|
|
blockdev = {'node-name': 'source',
|
|
'driver': iotests.imgfmt,
|
|
'file': {'driver': 'file',
|
|
'filename': source_img}}
|
|
self.vm.add_blockdev(self.vm.qmp_to_opts(blockdev))
|
|
|
|
if self.use_iothread:
|
|
self.vm.add_object('iothread,id=iothread0')
|
|
iothread = ",iothread=iothread0"
|
|
else:
|
|
iothread = ""
|
|
|
|
self.vm.add_device('virtio-scsi%s' % iothread)
|
|
self.vm.add_device('scsi-hd,id=qdev0,drive=source')
|
|
|
|
self.vm.launch()
|
|
|
|
self.assertIntactSourceBackingChain()
|
|
|
|
if self.existing:
|
|
if self.target_backing:
|
|
qemu_img('create', '-f', iotests.imgfmt,
|
|
'-b', self.target_backing, '-F', 'raw',
|
|
target_img, '1440K')
|
|
else:
|
|
qemu_img('create', '-f', iotests.imgfmt, target_img, '1440K')
|
|
|
|
if self.cmd == 'blockdev-mirror':
|
|
options = { 'node-name': 'target',
|
|
'driver': iotests.imgfmt,
|
|
'file': { 'driver': 'file',
|
|
'node-name': 'target-file',
|
|
'filename': target_img } }
|
|
|
|
if not self.target_open_with_backing:
|
|
options['backing'] = None
|
|
elif self.target_blockdev_backing:
|
|
options['backing'] = self.target_blockdev_backing
|
|
|
|
result = self.vm.qmp('blockdev-add', **options)
|
|
self.assert_qmp(result, 'return', {})
|
|
|
|
def tearDown(self):
|
|
self.vm.shutdown()
|
|
os.remove(source_img)
|
|
os.remove(back2_img)
|
|
os.remove(back1_img)
|
|
os.remove(back0_img)
|
|
try:
|
|
os.remove(target_img)
|
|
except OSError:
|
|
pass
|
|
|
|
def findBlockNode(self, node_name, qdev=None):
|
|
if qdev:
|
|
result = self.vm.qmp('query-block')
|
|
for device in result['return']:
|
|
if device['qdev'] == qdev:
|
|
if node_name:
|
|
self.assert_qmp(device, 'inserted/node-name', node_name)
|
|
return device['inserted']
|
|
else:
|
|
result = self.vm.qmp('query-named-block-nodes')
|
|
for node in result['return']:
|
|
if node['node-name'] == node_name:
|
|
return node
|
|
|
|
self.fail('Cannot find node %s/%s' % (qdev, node_name))
|
|
|
|
def assertIntactSourceBackingChain(self):
|
|
node = self.findBlockNode('source')
|
|
|
|
self.assert_qmp(node, 'image' + '/backing-image' * 0 + '/filename',
|
|
source_img)
|
|
self.assert_qmp(node, 'image' + '/backing-image' * 1 + '/filename',
|
|
back2_img)
|
|
self.assert_qmp(node, 'image' + '/backing-image' * 2 + '/filename',
|
|
back1_img)
|
|
self.assert_qmp(node, 'image' + '/backing-image' * 3 + '/filename',
|
|
back0_img)
|
|
self.assert_qmp_absent(node, 'image' + '/backing-image' * 4)
|
|
|
|
def assertCorrectBackingImage(self, node, default_image):
|
|
if self.existing:
|
|
if self.target_real_backing:
|
|
image = self.target_real_backing
|
|
else:
|
|
image = self.target_backing
|
|
else:
|
|
image = default_image
|
|
|
|
if image:
|
|
self.assert_qmp(node, 'image/backing-image/filename', image)
|
|
else:
|
|
self.assert_qmp_absent(node, 'image/backing-image')
|
|
|
|
|
|
# Class variables for controlling its behavior:
|
|
#
|
|
# cmd: Mirroring command to execute, either drive-mirror or blockdev-mirror
|
|
|
|
class MirrorBaseClass(BaseClass):
|
|
def openBacking(self):
|
|
pass
|
|
|
|
def runMirror(self, sync):
|
|
if self.cmd == 'blockdev-mirror':
|
|
result = self.vm.qmp(self.cmd, job_id='mirror-job', device='source',
|
|
sync=sync, target='target',
|
|
auto_finalize=False)
|
|
else:
|
|
if self.existing:
|
|
mode = 'existing'
|
|
else:
|
|
mode = 'absolute-paths'
|
|
result = self.vm.qmp(self.cmd, job_id='mirror-job', device='source',
|
|
sync=sync, target=target_img,
|
|
format=iotests.imgfmt, mode=mode,
|
|
node_name='target', auto_finalize=False)
|
|
|
|
self.assert_qmp(result, 'return', {})
|
|
|
|
self.vm.run_job('mirror-job', auto_finalize=False,
|
|
pre_finalize=self.openBacking, auto_dismiss=True)
|
|
|
|
def testFull(self):
|
|
self.runMirror('full')
|
|
|
|
node = self.findBlockNode('target', 'qdev0')
|
|
self.assertCorrectBackingImage(node, None)
|
|
self.assertIntactSourceBackingChain()
|
|
|
|
def testTop(self):
|
|
self.runMirror('top')
|
|
|
|
node = self.findBlockNode('target', 'qdev0')
|
|
self.assertCorrectBackingImage(node, back2_img)
|
|
self.assertIntactSourceBackingChain()
|
|
|
|
def testNone(self):
|
|
self.runMirror('none')
|
|
|
|
node = self.findBlockNode('target', 'qdev0')
|
|
self.assertCorrectBackingImage(node, source_img)
|
|
self.assertIntactSourceBackingChain()
|
|
|
|
|
|
class TestDriveMirrorAbsolutePaths(MirrorBaseClass):
|
|
cmd = 'drive-mirror'
|
|
existing = False
|
|
|
|
class TestDriveMirrorExistingNoBacking(MirrorBaseClass):
|
|
cmd = 'drive-mirror'
|
|
existing = True
|
|
target_backing = None
|
|
|
|
class TestDriveMirrorExistingBacking(MirrorBaseClass):
|
|
cmd = 'drive-mirror'
|
|
existing = True
|
|
target_backing = 'null-co://'
|
|
|
|
class TestBlockdevMirrorNoBacking(MirrorBaseClass):
|
|
cmd = 'blockdev-mirror'
|
|
existing = True
|
|
target_backing = None
|
|
|
|
class TestBlockdevMirrorBacking(MirrorBaseClass):
|
|
cmd = 'blockdev-mirror'
|
|
existing = True
|
|
target_backing = 'null-co://'
|
|
|
|
class TestBlockdevMirrorForcedBacking(MirrorBaseClass):
|
|
cmd = 'blockdev-mirror'
|
|
existing = True
|
|
target_backing = None
|
|
target_blockdev_backing = { 'driver': 'null-co' }
|
|
target_real_backing = 'null-co://'
|
|
|
|
# Attach the backing chain only during completion, with blockdev-reopen
|
|
class TestBlockdevMirrorReopen(MirrorBaseClass):
|
|
cmd = 'blockdev-mirror'
|
|
existing = True
|
|
target_backing = 'null-co://'
|
|
target_open_with_backing = False
|
|
|
|
def openBacking(self):
|
|
if not self.target_open_with_backing:
|
|
result = self.vm.qmp('blockdev-add', node_name="backing",
|
|
driver="null-co")
|
|
self.assert_qmp(result, 'return', {})
|
|
result = self.vm.qmp('blockdev-reopen', options=[{
|
|
'node-name': "target",
|
|
'driver': iotests.imgfmt,
|
|
'file': "target-file",
|
|
'backing': "backing"
|
|
}])
|
|
self.assert_qmp(result, 'return', {})
|
|
|
|
class TestBlockdevMirrorReopenIothread(TestBlockdevMirrorReopen):
|
|
use_iothread = True
|
|
|
|
# Attach the backing chain only during completion, with blockdev-snapshot
|
|
class TestBlockdevMirrorSnapshot(MirrorBaseClass):
|
|
cmd = 'blockdev-mirror'
|
|
existing = True
|
|
target_backing = 'null-co://'
|
|
target_open_with_backing = False
|
|
|
|
def openBacking(self):
|
|
if not self.target_open_with_backing:
|
|
result = self.vm.qmp('blockdev-add', node_name="backing",
|
|
driver="null-co")
|
|
self.assert_qmp(result, 'return', {})
|
|
result = self.vm.qmp('blockdev-snapshot', node="backing",
|
|
overlay="target")
|
|
self.assert_qmp(result, 'return', {})
|
|
|
|
class TestBlockdevMirrorSnapshotIothread(TestBlockdevMirrorSnapshot):
|
|
use_iothread = True
|
|
|
|
class TestCommit(BaseClass):
|
|
existing = False
|
|
|
|
def testCommit(self):
|
|
result = self.vm.qmp('block-commit', job_id='commit-job',
|
|
device='source', base=back1_img)
|
|
self.assert_qmp(result, 'return', {})
|
|
|
|
self.vm.event_wait('BLOCK_JOB_READY')
|
|
|
|
result = self.vm.qmp('block-job-complete', device='commit-job')
|
|
self.assert_qmp(result, 'return', {})
|
|
|
|
self.vm.event_wait('BLOCK_JOB_COMPLETED')
|
|
|
|
node = self.findBlockNode(None, 'qdev0')
|
|
self.assert_qmp(node, 'image' + '/backing-image' * 0 + '/filename',
|
|
back1_img)
|
|
self.assert_qmp(node, 'image' + '/backing-image' * 1 + '/filename',
|
|
back0_img)
|
|
self.assert_qmp_absent(node, 'image' + '/backing-image' * 2 +
|
|
'/filename')
|
|
|
|
self.assertIntactSourceBackingChain()
|
|
|
|
|
|
BaseClass = None
|
|
MirrorBaseClass = None
|
|
|
|
if __name__ == '__main__':
|
|
iotests.main(supported_fmts=['qcow2'],
|
|
supported_protocols=['file'])
|