Re: [PATCH v7 8/8] x86/tlb: just do tlb flush on one of siblingsof SMT

From: Peter Zijlstra
Date: Wed May 23 2012 - 13:15:43 EST


On Wed, 2012-05-23 at 19:09 +0200, Peter Zijlstra wrote:
> > There is no comment or anything else indicating that this is
> > suitable for dual-thread CPUs only - when there are more than
> > 2 threads per core, the intended effect won't be achieved.
>
> Why would that be? Won't higher thread count still share the same
> resources just more so?

Ah, I see, you're saying his code is buggy for >2 threads. Agreed.

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