Re: [RFC patch 0/5] genirq: add infrastructure for threaded interrupthandlers

From: Steven Rostedt
Date: Thu Oct 02 2008 - 16:14:43 EST



On Thu, 2 Oct 2008, Daniel Walker wrote:

> On Thu, 2008-10-02 at 21:28 +0200, Ingo Molnar wrote:
> > * Daniel Walker <dwalker@xxxxxxxxxx> wrote:
> >
> > > > > Clearly threading irq handlers does have something to do with real
> > > > > time, unless this patch isn't actually threading anything ..
> >
> > Well, that's clearly wrong: threaded IRQ handlers are not tied to
> > real-time in any way. Yes, they can be used for RT too but as far as the
> > upstream kernel is involved that's at most an afterthought.
>
> You contradict yourself .. I said "Clearly threading irq handlers does

No he did not.

> have something to do with real time" then you say "they can be used for
> RT too" .. So my comments are clearly correct , they have "something" to
> do with real time. There exists a relationship of some kind or type.


What Ingo is telling you is:

- RT needs threaded interrupts.

- Threaded interrupts do not need RT

My dog is an Italian Greyhound.

Italian Greyhound is a dog, but
a dog is not an Italian Greyhound.

-- Steve

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