static int
qemuSetupBlkioCgroup(virDomainObjPtr vm)
{
qemuDomainObjPrivatePtr priv = vm->privateData;
size_t i;
if (!virCgroupHasController(priv->cgroup,
VIR_CGROUP_CONTROLLER_BLKIO)) {
if (vm->def->blkio.weight || vm->def->blkio.ndevices) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("Block I/O tuning is not available on this host"));
return -1;
} else {
return 0;
}
}
if (vm->def->blkio.weight != 0 &&
virCgroupSetBlkioWeight(priv->cgroup, vm->def->blkio.weight) < 0)
return -1;
if (vm->def->blkio.ndevices) {
for (i = 0; i < vm->def->blkio.ndevices; i++) {
virBlkioDevicePtr dev = &vm->def->blkio.devices[i];
if (dev->weight &&
(virCgroupSetBlkioDeviceWeight(priv->cgroup, dev->path,
dev->weight) < 0))
return -1;
if (dev->riops &&
(virCgroupSetBlkioDeviceReadIops(priv->cgroup, dev->path,
dev->riops) < 0))
return -1;
if (dev->wiops &&
(virCgroupSetBlkioDeviceWriteIops(priv->cgroup, dev->path,
dev->wiops) < 0))
return -1;
if (dev->rbps &&
(virCgroupSetBlkioDeviceReadBps(priv->cgroup, dev->path,
dev->rbps) < 0))
return -1;
if (dev->wbps &&
(virCgroupSetBlkioDeviceWriteBps(priv->cgroup, dev->path,
dev->wbps) < 0))
return -1;
}
}
return 0;
}
static int virLXCCgroupSetupBlkioTune(virDomainDefPtr def,
virCgroupPtr cgroup)
{
size_t i;
if (def->blkio.weight &&
virCgroupSetBlkioWeight(cgroup, def->blkio.weight) < 0)
return -1;
if (def->blkio.ndevices) {
for (i = 0; i < def->blkio.ndevices; i++) {
virBlkioDevicePtr dev = &def->blkio.devices[i];
if (dev->weight &&
(virCgroupSetBlkioDeviceWeight(cgroup, dev->path,
dev->weight) < 0))
return -1;
if (dev->riops &&
(virCgroupSetBlkioDeviceReadIops(cgroup, dev->path,
dev->riops) < 0))
return -1;
if (dev->wiops &&
(virCgroupSetBlkioDeviceWriteIops(cgroup, dev->path,
dev->wiops) < 0))
return -1;
if (dev->rbps &&
(virCgroupSetBlkioDeviceReadBps(cgroup, dev->path,
dev->rbps) < 0))
return -1;
if (dev->wbps &&
(virCgroupSetBlkioDeviceWriteBps(cgroup, dev->path,
dev->wbps) < 0))
return -1;
}
}
return 0;
}