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

Andi Kleen
2009-01-13T03:21:47Z

> > (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.

-Andi
--
ak@linux.intel.com -- Speaking for myself only.