Re: [PATCH] Priority Lists for the RT mutex

[Ingo Molnar]

* Perez-Gonzalez, Inaky <inaky.perez-gonzalez@xxxxxxxxx> wrote:

> >OTOH, deadlock detection is another issue. It's quite expensive and i'm
> >not sure we want to make it a runtime thing. But for fusyn's deadlock
> >detection and safe teardown on owner-exit is a must-have i suspect?
> 
> Not really. Deadlock check is needed on PI, so it can be done at the 
> same time (you have to walk the chain anyway). In any other case, it 
> is an option you can request (or not).

well, i was talking about the mutex code in PREEMPT_RT. There deadlock 
detection is an optional debug feature. You dont _have_ to do deadlock 
detection for the kernel's locks, and there's a difference in 
performance.

	Ingo
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