Messages in this thread | | | Subject | Re: [RFC][PATCH] irq_work | From | Peter Zijlstra <> | Date | Thu, 24 Jun 2010 13:10:52 +0200 |
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On Thu, 2010-06-24 at 13:08 +0200, Andi Kleen wrote: > > 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.
possibly, but there is no reason what so ever to use softirq here.
> > 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.
softirq can't sleep either, you need a trampoline anyway.
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