Re: [tip:perf/core] x86, NMI: Rewrite NMI handler

Peter Zijlstra
2010-10-17T10:43:00Z

On Sat, 2010-10-16 at 20:46 -0400, Don Zickus wrote:

> Hmm, well to his defense, he isn't adding DIE_NMI_IPI. That code is
> already there. He is just re-arranging it, making it look painfully
> obvious the die_chain probably isn't as efficient as it should be.
>
> I think a bunch of us agree that we need to revamp the NMI notifier to
> make it less wasteful. I was hoping we could do that in a separate patch
> that would be layered on top of Huangs.
>
> Would you object to at least consider having this patch series in a
> work-in-progress git branch that we can build on top of, with the final
> outcome containing an nmi notifier that meets your expectations?

What's the point of keeping it in a git tree? Its just a few patches.

We've spend more time talking about this than it would take to actually
do the patch that kills DIE_NMI_IPI.