[libvirt] [PATCH 4/6] qemu: vcpupin: Always set affinity even when cgroups are supported
Peter Krempa
pkrempa at redhat.com
Fri Feb 19 13:09:43 UTC 2016
On Fri, Feb 19, 2016 at 07:19:38 -0500, John Ferlan wrote:
>
>
> On 02/17/2016 11:25 AM, Peter Krempa wrote:
> > VM startup and CPU hotplug always set the affinity regardless of cgroups
> > support. Use the same approach for the pinning API.
> > ---
> > src/qemu/qemu_driver.c | 7 +++----
> > 1 file changed, 3 insertions(+), 4 deletions(-)
> >
> > diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
> > index 24c1ca4..d1e5188 100644
> > --- a/src/qemu/qemu_driver.c
> > +++ b/src/qemu/qemu_driver.c
> > @@ -5068,12 +5068,11 @@ qemuDomainPinVcpuFlags(virDomainPtr dom,
> > goto endjob;
> > if (qemuSetupCgroupCpusetCpus(cgroup_vcpu, pcpumap) < 0)
> > goto endjob;
> > - } else {
> > - if (virProcessSetAffinity(qemuDomainGetVcpuPid(vm, vcpu),
> > - pcpumap) < 0)
> > - goto endjob;
> > }
> >
> > + if (virProcessSetAffinity(qemuDomainGetVcpuPid(vm, vcpu), pcpumap) < 0)
> > + goto endjob;
> > +
> > virBitmapFree(vcpuinfolive->cpumask);
> > vcpuinfolive->cpumask = pcpumaplive;
> > pcpumaplive = NULL;
> >
>
> Why not the same for qemuDomainPinEmulator and qemuDomainPinIOThread?
I'm too focused on the cpus in this series apparently ...
> Since qemuProcessSetEmulatorAffinity and qemuProcessSetupIOThread do the
> same as qemuProcessSetupVcpu.
Are you okay with separate patches for this?
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