Re: [PATCH -v5][RFC]: mutex: implement adaptive spinning

[Andi Kleen]

> What about memory hotplug as Ingo mentioned?
> 
> Should that be:
> 
> #if defined(CONFIG_DEBUG_PAGEALLOC) || defined(CONFIG_MEMORY_HOTPLUG)

We expect memory hotunplug to only really work in movable zones
(all others should at least have one kernel object somewhere that prevents
unplug) and you can't have task structs in movable zones obviously

So it's probably a non issue in practice.

-Andi
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