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qemu: synchronize emulatorpin info to cgroup

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Introduce qemuSetupCgroupEmulatorPin() function to add emulator
threads pin info to cpuset cgroup, the same as vcpupin.

Signed-off-by: Tang Chen <tangchen@cn.fujitsu.com>
Signed-off-by: Hu Tao <hutao@cn.fujitsu.com>
This commit is contained in:
Tang Chen 2012-08-21 17:18:33 +08:00 committed by Daniel Veillard
parent 19630db3e3
commit a1249489ce
2 changed files with 35 additions and 17 deletions
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51
src/qemu/qemu_cgroup.c
View File

@ -496,29 +496,40 @@ int qemuSetupCgroupVcpuPin(virCgroupPtr cgroup,
int nvcpupin,
int vcpuid)
{
int i, rc = 0;
char *new_cpus = NULL;
int i;
for (i = 0; i < nvcpupin; i++) {
if (vcpuid == vcpupin[i]->vcpuid) {
new_cpus = virDomainCpuSetFormat(vcpupin[i]->cpumask,
VIR_DOMAIN_CPUMASK_LEN);
if (!new_cpus) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("failed to convert cpu mask"));
rc = -1;
goto cleanup;
}
rc = virCgroupSetCpusetCpus(cgroup, new_cpus);
if (rc != 0) {
virReportSystemError(-rc,
"%s",
_("Unable to set cpuset.cpus"));
goto cleanup;
}
return qemuSetupCgroupEmulatorPin(cgroup, vcpupin[i]);
}
}
return -1;
}
int qemuSetupCgroupEmulatorPin(virCgroupPtr cgroup,
virDomainVcpuPinDefPtr vcpupin)
{
int rc = 0;
char *new_cpus = NULL;
new_cpus = virDomainCpuSetFormat(vcpupin->cpumask,
VIR_DOMAIN_CPUMASK_LEN);
if (!new_cpus) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("failed to convert cpu mask"));
rc = -1;
goto cleanup;
}
rc = virCgroupSetCpusetCpus(cgroup, new_cpus);
if (rc < 0) {
virReportSystemError(-rc,
"%s",
_("Unable to set cpuset.cpus"));
goto cleanup;
}
cleanup:
VIR_FREE(new_cpus);
return rc;
@ -636,6 +647,7 @@ int qemuSetupCgroupForEmulator(struct qemud_driver *driver,
{
virCgroupPtr cgroup = NULL;
virCgroupPtr cgroup_emulator = NULL;
virDomainDefPtr def = vm->def;
int rc, i;
if (driver->cgroup == NULL)
@ -672,6 +684,11 @@ int qemuSetupCgroupForEmulator(struct qemud_driver *driver,
}
}
if (def->cputune.emulatorpin &&
qemuCgroupControllerActive(driver, VIR_CGROUP_CONTROLLER_CPUSET) &&
qemuSetupCgroupEmulatorPin(cgroup_emulator, def->cputune.emulatorpin) < 0)
goto cleanup;
virCgroupFree(&cgroup_emulator);
virCgroupFree(&cgroup);
return 0;

1
src/qemu/qemu_cgroup.h
View File

@ -57,6 +57,7 @@ int qemuSetupCgroupVcpuPin(virCgroupPtr cgroup,
virDomainVcpuPinDefPtr *vcpupin,
int nvcpupin,
int vcpuid);
int qemuSetupCgroupEmulatorPin(virCgroupPtr cgroup, virDomainVcpuPinDefPtr vcpupin);
int qemuSetupCgroupForVcpu(struct qemud_driver *driver, virDomainObjPtr vm);
int qemuSetupCgroupForEmulator(struct qemud_driver *driver,
virDomainObjPtr vm);