fc272d3ce0
qemu_img() returning zero ought to be the rule, not the exception. Remove all explicit checks against the condition in preparation for making non-zero returns an Exception. Signed-off-by: John Snow <jsnow@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Hanna Reitz <hreitz@redhat.com> Message-Id: <20220321201618.903471-4-jsnow@redhat.com> Signed-off-by: Hanna Reitz <hreitz@redhat.com>
117 lines
3.9 KiB
Python
Executable File
117 lines
3.9 KiB
Python
Executable File
#!/usr/bin/env python3
|
|
# group: rw quick
|
|
#
|
|
# Copy-on-read tests using a COR filter with a bottom node
|
|
#
|
|
# Copyright (C) 2018 Red Hat, Inc.
|
|
# Copyright (c) 2020 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, qemu_io_silent
|
|
|
|
# Need backing file support
|
|
iotests.script_initialize(supported_fmts=['qcow2'],
|
|
supported_platforms=['linux'])
|
|
|
|
log('')
|
|
log('=== Copy-on-read across nodes ===')
|
|
log('')
|
|
|
|
# This test is similar to the 216 one by Max Reitz <mreitz@redhat.com>
|
|
# The difference is that this test case involves a bottom node to the
|
|
# COR filter driver.
|
|
|
|
with iotests.FilePath('base.img') as base_img_path, \
|
|
iotests.FilePath('mid.img') as mid_img_path, \
|
|
iotests.FilePath('top.img') as top_img_path, \
|
|
iotests.VM() as vm:
|
|
|
|
log('--- Setting up images ---')
|
|
log('')
|
|
|
|
qemu_img('create', '-f', iotests.imgfmt, base_img_path, '64M')
|
|
assert qemu_io_silent(base_img_path, '-c', 'write -P 1 0M 1M') == 0
|
|
assert qemu_io_silent(base_img_path, '-c', 'write -P 1 3M 1M') == 0
|
|
qemu_img('create', '-f', iotests.imgfmt, '-b', base_img_path,
|
|
'-F', iotests.imgfmt, mid_img_path)
|
|
assert qemu_io_silent(mid_img_path, '-c', 'write -P 3 2M 1M') == 0
|
|
assert qemu_io_silent(mid_img_path, '-c', 'write -P 3 4M 1M') == 0
|
|
qemu_img('create', '-f', iotests.imgfmt, '-b', mid_img_path,
|
|
'-F', iotests.imgfmt, top_img_path)
|
|
assert qemu_io_silent(top_img_path, '-c', 'write -P 2 1M 1M') == 0
|
|
|
|
# 0 1 2 3 4
|
|
# top 2
|
|
# mid 3 3
|
|
# base 1 1
|
|
|
|
log('Done')
|
|
|
|
log('')
|
|
log('--- Doing COR ---')
|
|
log('')
|
|
|
|
vm.launch()
|
|
|
|
log(vm.qmp('blockdev-add',
|
|
node_name='node0',
|
|
driver='copy-on-read',
|
|
bottom='node2',
|
|
file={
|
|
'driver': iotests.imgfmt,
|
|
'file': {
|
|
'driver': 'file',
|
|
'filename': top_img_path
|
|
},
|
|
'backing': {
|
|
'node-name': 'node2',
|
|
'driver': iotests.imgfmt,
|
|
'file': {
|
|
'driver': 'file',
|
|
'filename': mid_img_path
|
|
},
|
|
'backing': {
|
|
'driver': iotests.imgfmt,
|
|
'file': {
|
|
'driver': 'file',
|
|
'filename': base_img_path
|
|
}
|
|
},
|
|
}
|
|
}))
|
|
|
|
# Trigger COR
|
|
log(vm.qmp('human-monitor-command',
|
|
command_line='qemu-io node0 "read 0 5M"'))
|
|
|
|
vm.shutdown()
|
|
|
|
log('')
|
|
log('--- Checking COR result ---')
|
|
log('')
|
|
|
|
# Detach backing to check that we can read the data from the top level now
|
|
qemu_img('rebase', '-u', '-b', '', '-f', iotests.imgfmt, top_img_path)
|
|
|
|
assert qemu_io_silent(top_img_path, '-c', 'read -P 0 0 1M') == 0
|
|
assert qemu_io_silent(top_img_path, '-c', 'read -P 2 1M 1M') == 0
|
|
assert qemu_io_silent(top_img_path, '-c', 'read -P 3 2M 1M') == 0
|
|
assert qemu_io_silent(top_img_path, '-c', 'read -P 0 3M 1M') == 0
|
|
assert qemu_io_silent(top_img_path, '-c', 'read -P 3 4M 1M') == 0
|
|
|
|
log('Done')
|