[libvirt] [PATCH v2 19/21] qemu: vcpu: Reuse qemuProcessSetupVcpu in vcpu hotplug

Since majority of the steps is shared, the function can be reused to simplify code. Additionally this resolves https://bugzilla.redhat.com/show_bug.cgi?id=1244128 since the cpu bandwidth limiting with cgroups would not be set on the hotplug path. --- src/qemu/qemu_driver.c | 35 +---------------------------------- 1 file changed, 1 insertion(+), 34 deletions(-) diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c index a247dc0..51e2e86 100644 --- a/src/qemu/qemu_driver.c +++ b/src/qemu/qemu_driver.c @@ -4738,10 +4738,6 @@ qemuDomainHotplugAddVcpu(virQEMUDriverPtr driver, int ret = -1; int rc; int oldvcpus = virDomainDefGetVcpus(vm->def); - virCgroupPtr cgroup_vcpu = NULL; - char *mem_mask = NULL; - virDomainNumatuneMemMode mem_mode; - pid_t vcpupid; if (!(vcpuinfo = virDomainDefGetVcpu(vm->def, vcpu))) return -1; @@ -4774,41 +4770,12 @@ qemuDomainHotplugAddVcpu(virQEMUDriverPtr driver, goto cleanup; } - vcpupid = qemuDomainGetVcpuPid(vm, vcpu); - - if (virDomainNumatuneGetMode(vm->def->numa, -1, &mem_mode) == 0 && - mem_mode == VIR_DOMAIN_NUMATUNE_MEM_STRICT && - virDomainNumatuneMaybeFormatNodeset(vm->def->numa, - priv->autoNodeset, - &mem_mask, -1) < 0) - goto cleanup; - - if (priv->cgroup) { - cgroup_vcpu = qemuDomainAddCgroupForThread(priv->cgroup, - VIR_CGROUP_THREAD_VCPU, - vcpu, mem_mask, vcpupid); - if (!cgroup_vcpu) - goto cleanup; - } - - /* Inherit def->cpuset */ - if (vm->def->cpumask) { - if (qemuDomainHotplugPinThread(vm->def->cpumask, vcpu, vcpupid, - cgroup_vcpu) < 0) { - goto cleanup; - } - } - - if (vcpuinfo->sched.policy != VIR_PROC_POLICY_NONE && - virProcessSetScheduler(vcpupid, vcpuinfo->sched.policy, - vcpuinfo->sched.priority) < 0) + if (qemuProcessSetupVcpu(vm, vcpu) < 0) goto cleanup; ret = 0; cleanup: - VIR_FREE(mem_mask); - virCgroupFree(&cgroup_vcpu); return ret; } -- 2.6.2