Re: [RFC 1/3] Unified NMI delayed call mechanism

From: Ingo Molnar
Date: Fri Jun 18 2010 - 10:38:14 EST



* Andi Kleen <andi@xxxxxxxxxxxxxx> wrote:

> > So aside from the should this be perf or not, the above is utter
> > gibberish. Whoever came up with this nonsense?
>
> This is pretty much how softirqs (and before them bottom halves) work.
> I believe Linus invented that scheme originally back in the early
> days of Linux.

Nope - the softirq code was written by Alexey Kuznetsov and David S. Miller.
But it's irrelevant, because:

> It's actually quite simple and works well

... as Peter said the last thing we want is yet another softirq vector.

Thanks,

Ingo
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