Re: [RFC][PATCH] irq_work

From: Peter Zijlstra
Date: Thu Jun 24 2010 - 07:35:05 EST


On Thu, 2010-06-24 at 13:23 +0200, Ingo Molnar wrote:

> What might make sense is to offer two types of callbacks: one that is
> immediate whenever an event triggers - and another that is sleepable and is
> executed from process context.

Trouble is waking that thread, you cannot wake tasks from NMI context,
so whatever you do, you'll end up with a trampoline.

You could of course offer that trampoline nicely packaged, but I'm not
sure that's really worth the effort.
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