Messages in this thread | | | Subject | Re: [PATCH][RFC] kvm-scheduler integration | From | Andi Kleen <> | Date | 08 Jul 2007 21:07:10 +0200 |
| |
Avi Kivity <avi-atKUWr5tajBWk0Htik3J/w@public.gmane.org> writes: > diff --git a/include/linux/sched.h b/include/linux/sched.h > index 693f0e6..b705876 100644 > --- a/include/linux/sched.h > +++ b/include/linux/sched.h > @@ -875,6 +875,10 @@ struct task_struct { > pid_t pid; > pid_t tgid; > > +#ifdef CONFIG_SCHED_KVM > + struct kvm_vcpu *kvm_vcpu; > +#endif
You should be careful to put this into a cache line that is already touched during context switch. Otherwise if it needs an additional cache miss it might become very costly
Also it's a bit worrying to expose hooks into the scheduler to any modules. How would others be stopped from abusing this?
-Andi - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |