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#!/usr/bin/env python3
# SPDX-License-Identifier: LGPL-2.1-only
#
# Test deleting cgroup on mount point shared by cgroup v1 controllers
#
# Copyright (c) 2022 Oracle and/or its affiliates.
# Author: Kamalesh Babulal <kamalesh.babulal@oracle.com>
#
from cgroup import Cgroup, CgroupVersion
from run import RunError
import consts
import ftests
import sys
import os
CONTROLLER1 = 'cpu'
CONTROLLER2 = 'cpuacct'
CGNAME = '047shared_mnts'
def prereqs(config):
result = consts.TEST_PASSED
cause = None
if CgroupVersion.get_version('cpu') != CgroupVersion.CGROUP_V1:
result = consts.TEST_SKIPPED
cause = 'This test requires the cgroup v1 cpu controller'
# cpuacct controller is only available on cgroup v1, if an exception
# gets raised, then no cgroup v1 controllers mounted.
try:
CgroupVersion.get_version('cpuacct')
except IndexError:
result = consts.TEST_SKIPPED
cause = 'This test requires the cgroup v1 cpuacct controller'
return result, cause
def setup(config):
Cgroup.create(config, CONTROLLER1, CGNAME)
def test(config):
result = consts.TEST_PASSED
cause = None
try:
Cgroup.delete(config, CONTROLLER2, CGNAME)
except RunError as re:
if 'No such file or directory' in re.stderr:
cause = 'cpu and cpuacct controllers do not share mount points.'
result = consts.TEST_FAILED
else:
raise re
try:
Cgroup.delete(config, CONTROLLER1, CGNAME)
except RunError as re:
if 'No such file or directory' not in re.stderr:
raise re
return result, cause
def teardown(config):
pass
def main(config):
[result, cause] = prereqs(config)
if result != consts.TEST_PASSED:
return [result, cause]
setup(config)
[result, cause] = test(config)
teardown(config)
return [result, cause]
if __name__ == '__main__':
config = ftests.parse_args()
# this test was invoked directly. run only it
config.args.num = int(os.path.basename(__file__).split('-')[0])
sys.exit(ftests.main(config))
# vim: set et ts=4 sw=4:
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