36 lines
1.1 KiB
Python
36 lines
1.1 KiB
Python
# Copyright 2016 Red Hat, Inc
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# Copyright 2017 Rackspace Australia
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# Copyright 2018 Michael Still and Aptira
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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"""
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Helpers for cgroup related routines.
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"""
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from oslo_concurrency import processutils
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import cinder.privsep
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@cinder.privsep.sys_admin_pctxt.entrypoint
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def cgroup_create(name):
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processutils.execute('cgcreate', '-g', 'blkio:%s' % name)
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@cinder.privsep.sys_admin_pctxt.entrypoint
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def cgroup_limit(name, rw, dev, bps):
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processutils.execute('cgset', '-r',
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'blkio.throttle.%s_bps_device=%s %d' % (rw, dev, bps),
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name)
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