Re: [PATCH RFC V3 2/3] kvm: Note down when cpu relax intercepted or pause loop exited

[Srikar Dronamraju <srikar@linux.vnet.ibm.com>]

> On 12/07/12 21:18, Raghavendra K T wrote:
> > +#ifdef CONFIG_HAVE_KVM_CPU_RELAX_INTERCEPT
> [...]
> > +	struct {
> > +		bool cpu_relax_intercepted;
> > +		bool dy_eligible;
> > +	} ple;
> > +#endif
> [...]
> >  	}
> >  	vcpu->run = page_address(page);
> > +	vcpu->ple.cpu_relax_intercepted = false;
> > +	vcpu->ple.dy_eligible = false;
> 
> This struct is only defined if CONFIG_HAVE_KVM_CPU_RELAX_INTERCEPT is set, but here it
> is always accessed. Will break on !x86 && !s390.

How about moving this struct definition outside the CONFIG.
i.e it would be available by default.
If any arch cares to use vcpu_on_spin(), they would get the benefit by
default. 

This would avoid all the CONFIG magic that we would have to do
otherwise.

-- 
Thanks and Regards
Srikar