Re: 4.4-rc5: ugly warn on: 5 W+X pages found

[Arjan van de Ven]

> That's weird.  The only API to do that seems to be manually setting
> kmap_prot to _PAGE_KERNEL_EXEC, and nothing does that.  (Why is
> kmap_prot a variable on x86 at all?  It has exactly one writer, and
> that's the code that initializes it in the first place.  Shouldn't we
> #define kmap_prot _PAGE_KERNEL?

iirc it changes based on runtime detection of NX capability

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