[libvirt] [PATCHv4 2/6] use cpuset to manage numa
From: Hu Tao <hutao(a)cn.fujitsu.com>
This patch also sets cgroup cpuset parameters for numatune.
---
src/qemu/qemu_cgroup.c | 19 +++++++++++++++++++
1 files changed, 19 insertions(+), 0 deletions(-)
diff --git a/src/qemu/qemu_cgroup.c b/src/qemu/qemu_cgroup.c
index d663798..2d970d6 100644
--- a/src/qemu/qemu_cgroup.c
+++ b/src/qemu/qemu_cgroup.c
@@ -389,6 +389,25 @@ int qemuSetupCgroup(struct qemud_driver *driver,
}
}
+ if (vm->def->numatune.memory.nodemask &&
+ vm->def->numatune.memory.mode == VIR_DOMAIN_NUMATUNE_MEM_STRICT &&
+ qemuCgroupControllerActive(driver, VIR_CGROUP_CONTROLLER_CPUSET)) {
+ char *mask = virDomainCpuSetFormat(vm->def->numatune.memory.nodemask,
VIR_DOMAIN_CPUMASK_LEN);
+ if (!mask) {
+ qemuReportError(VIR_ERR_INTERNAL_ERROR,
+ _("failed to convert memory nodemask"));
+ goto cleanup;
+ }
+
+ rc = virCgroupSetCpusetMems(cgroup, mask);
+ VIR_FREE(mask);
+ if (rc != 0) {
+ virReportSystemError(-rc,
+ _("Unable to set cpuset.mems for domain %s"),
+ vm->def->name);
+ goto cleanup;
+ }
+ }
done:
virCgroupFree(&cgroup);
return 0;
--
1.7.7.4