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qemu: Abstract code for the cpu controller setting into a helper

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This commit is contained in:
Osier Yang 2013-05-24 17:08:27 +08:00
parent 38b90e4df3
commit 8da9516a84
1 changed files with 36 additions and 19 deletions
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53
src/qemu/qemu_cgroup.c
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@ -676,6 +676,36 @@ cleanup:
}
static int
qemuSetupCpuCgroup(virDomainObjPtr vm)
{
qemuDomainObjPrivatePtr priv = vm->privateData;
int rc = -1;
if (!virCgroupHasController(priv->cgroup, VIR_CGROUP_CONTROLLER_CPU)) {
if (vm->def->cputune.shares) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("CPU tuning is not available on this host"));
return -1;
} else {
return 0;
}
}
if (vm->def->cputune.shares) {
rc = virCgroupSetCpuShares(priv->cgroup, vm->def->cputune.shares);
if (rc != 0) {
virReportSystemError(-rc,
_("Unable to set io cpu shares for domain %s"),
vm->def->name);
return -1;
}
}
return 0;
}
int qemuInitCgroup(virQEMUDriverPtr driver,
virDomainObjPtr vm,
bool startup)
@ -789,14 +819,14 @@ int qemuSetupCgroup(virQEMUDriverPtr driver,
virDomainObjPtr vm,
virBitmapPtr nodemask)
{
int rc = -1;
qemuDomainObjPrivatePtr priv = vm->privateData;
int ret = -1;
if (qemuInitCgroup(driver, vm, true) < 0)
return -1;
if (!priv->cgroup)
goto done;
return 0;
if (qemuSetupDevicesCgroup(driver, vm) < 0)
goto cleanup;
@ -807,28 +837,15 @@ int qemuSetupCgroup(virQEMUDriverPtr driver,
if (qemuSetupMemoryCgroup(vm) < 0)
goto cleanup;
if (vm->def->cputune.shares != 0) {
if (virCgroupHasController(priv->cgroup, VIR_CGROUP_CONTROLLER_CPU)) {
rc = virCgroupSetCpuShares(priv->cgroup, vm->def->cputune.shares);
if (rc != 0) {
virReportSystemError(-rc,
_("Unable to set io cpu shares for domain %s"),
vm->def->name);
if (qemuSetupCpuCgroup(vm) < 0)
goto cleanup;
}
} else {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("CPU tuning is not available on this host"));
}
}
if (qemuSetupCpusetCgroup(vm, nodemask) < 0)
goto cleanup;
done:
rc = 0;
ret = 0;
cleanup:
return rc == 0 ? 0 : -1;
return ret;
}
int qemuSetupCgroupVcpuBW(virCgroupPtr cgroup, unsigned long long period,