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105 lines
3.9 KiB
Python
105 lines
3.9 KiB
Python
#!/usr/bin/env python3
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# group: rw quick
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#
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# Tests that "bdrv_drain_all" doesn't drain block jobs
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#
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# Copyright (C) 2015 Red Hat, Inc.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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import os
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import iotests
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class TestStopWithBlockJob(iotests.QMPTestCase):
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test_img = os.path.join(iotests.test_dir, 'test.img')
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target_img = os.path.join(iotests.test_dir, 'target.img')
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base_img = os.path.join(iotests.test_dir, 'base.img')
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overlay_img = os.path.join(iotests.test_dir, 'overlay.img')
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def setUp(self):
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iotests.qemu_img('create', '-f', iotests.imgfmt, self.base_img, "1G")
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iotests.qemu_img('create', '-f', iotests.imgfmt, self.test_img,
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"-b", self.base_img, '-F', iotests.imgfmt)
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iotests.qemu_io('-f', iotests.imgfmt, '-c', 'write -P0x5d 1M 128M',
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self.test_img)
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self.vm = iotests.VM()
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self.vm.add_object('throttle-group,id=tg0,x-bps-total=1024')
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source_drive = 'driver=throttle,' \
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'node-name=source,' \
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'throttle-group=tg0,' \
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f'file.driver={iotests.imgfmt},' \
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f'file.file.filename={self.test_img}'
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self.vm.add_drive(None, source_drive)
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self.vm.launch()
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def tearDown(self):
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self.vm.shutdown()
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for img in (self.test_img, self.target_img, self.base_img,
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self.overlay_img):
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iotests.try_remove(img)
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def do_test_stop(self, cmd, **args):
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"""Test 'stop' while block job is running on a throttled drive.
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The 'stop' command shouldn't drain the job"""
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self.vm.cmd(cmd, **args)
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self.vm.cmd("stop")
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result = self.vm.qmp("query-block-jobs")
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self.assert_qmp(result, 'return[0]/status', 'running')
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self.assert_qmp(result, 'return[0]/ready', False)
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def test_drive_mirror(self):
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self.do_test_stop("drive-mirror", device="drive0",
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target=self.target_img, format=iotests.imgfmt,
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sync="full", buf_size=65536)
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def test_drive_backup(self):
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# Limit max-chunk and max-workers so that block-copy will not
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# launch so many workers working on so much data each that
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# stop's bdrv_drain_all() would finish the job
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self.do_test_stop("drive-backup", device="drive0",
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target=self.target_img, format=iotests.imgfmt,
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sync="full",
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x_perf={'max-chunk': 65536,
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'max-workers': 8})
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def test_block_commit(self):
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# Add overlay above the source node so that we actually use a
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# commit job instead of a mirror job
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iotests.qemu_img('create', '-f', iotests.imgfmt, self.overlay_img,
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'1G')
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self.vm.cmd('blockdev-add', {
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'node-name': 'overlay',
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'driver': iotests.imgfmt,
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'file': {
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'driver': 'file',
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'filename': self.overlay_img
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}
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})
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self.vm.cmd('blockdev-snapshot',
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node='source', overlay='overlay')
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self.do_test_stop('block-commit', device='drive0', top_node='source')
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if __name__ == '__main__':
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iotests.main(supported_fmts=["qcow2"],
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supported_protocols=["file"])
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