Re: [RFC][PATCH] irq_work

From: Andi Kleen
Date: Thu Jun 24 2010 - 07:08:37 EST


> And I really want hardirq context for perf callbacks, some code actually
> relies on it (I used to have the fallback in the timer softirq and that

Surely that could be fixed? *requiring* hard irq context sounds weird.

> broke thing at some point).

I have one case that needs to sleep (but only when interrupting user code)
They key thing in it really is to switch stacks back to process.

-andi
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