libvirt/src/hypervisor/domain_cgroup.c

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/*
* domain_cgroup.c: cgroup functions shared between hypervisor drivers
*
* Copyright IBM Corp. 2020
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see
* <http://www.gnu.org/licenses/>.
*/
#include <config.h>
#include "domain_cgroup.h"
int
virDomainCgroupSetupBlkio(virCgroupPtr cgroup, virDomainBlkiotune blkio)
{
size_t i;
if (blkio.weight != 0 &&
virCgroupSetBlkioWeight(cgroup, blkio.weight) < 0)
return -1;
if (blkio.ndevices) {
for (i = 0; i < blkio.ndevices; i++) {
virBlkioDevicePtr dev = &blkio.devices[i];
if (dev->weight &&
virCgroupSetupBlkioDeviceWeight(cgroup, dev->path,
&dev->weight) < 0)
return -1;
if (dev->riops &&
virCgroupSetupBlkioDeviceReadIops(cgroup, dev->path,
&dev->riops) < 0)
return -1;
if (dev->wiops &&
virCgroupSetupBlkioDeviceWriteIops(cgroup, dev->path,
&dev->wiops) < 0)
return -1;
if (dev->rbps &&
virCgroupSetupBlkioDeviceReadBps(cgroup, dev->path,
&dev->rbps) < 0)
return -1;
if (dev->wbps &&
virCgroupSetupBlkioDeviceWriteBps(cgroup, dev->path,
&dev->wbps) < 0)
return -1;
}
}
return 0;
}