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SubjectRe: 'global' rq->clock

* David Miller <davem@davemloft.net> wrote:

> From: Ingo Molnar <mingo@elte.hu>
> Date: Sun, 4 May 2008 01:38:25 +0200
>
> > ah, good! It really looks like unnecessary overhead for the "simple
> > IPIs". But ... i'm wondering ... what about softirq processing? Do these
> > IPIs process softirqs on the way out? In that case the non-processed
> > jiffies might be a problem.
> >
> > it's all a bit messy. I wish we could start turning jiffies into a
> > function (which would just read GTOD and estimate jiffies from there),
> > but i fear we are not there yet ...
>
> I think Peter Z. made a good point that we probably need to keep it
> there for smp_call_function() receivers, so that the called functions
> can test the context they are in accurately.

hm, good point, i missed that aspect.

Ingo


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