Re: [Xen-devel] [PATCH 00/12] cpumask handling scalability improvements

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 20.10.11 at 18:06, Keir Fraser <keir@xxxxxxx> wrote:
> On 20/10/2011 16:19, "Jan Beulich" <JBeulich@xxxxxxxx> wrote:
> 
>>> I suppose there is a second argument that it shrinks the containing
>>> structures (struct domain, struct vcpu, struct irq_desc, ...) and maybe
>>> helps reduce our order!=0 allocations?
>> 
>> Yes - that's what made me start taking over these Linux bits. What I
>> sent here just continues on that route. I was really hoping that we
>> wouldn't leave this in a half baked state.
> 
> Has Linux gone wholesale down this route, then?

Yes - the old ones are left in there is something forces
CONFIG_DISABLE_OBSOLETE_CPUMASK_FUNCTIONS (which
we can avoid altogether).

Jan



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