Re: [patch] tlb flush_data: replace per_cpu with an array

[Ingo Molnar]

* Andi Kleen <andi@xxxxxxxxxxxxxx> wrote:

> > > (And was it determined yet, that a cacheline has to be tossed around 
> > > as well?)
> > 
> > No, that assertion of Andi is wrong.
> 
> For the IPI you always have to toss one cache line around to pass the 
> information.
> 
> Anyways the padding is just to avoid false sharing.

Which is a red herring - the padding was there before the patch, and is 
there after the patch as well.

	Ingo
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