On Thu, 3 Dec 2015, Dave Hansen wrote:
> The protection key can now be just as important as read/write
> permissions on a VMA.  We need some debug mechanism to help
> figure out if it is in play.  smaps seems like a logical
> place to expose it.
> 
> arch/x86/kernel/setup.c is a bit of a weirdo place to put
> this code, but it already had seq_file.h and there was not
> a much better existing place to put it.
> 
> We also use no #ifdef.  If protection keys is .config'd out
> we will get the same function as if we used the weak generic
> function.
> 
> Signed-off-by: Dave Hansen <dave.han...@linux.intel.com>

Reviewed-by: Thomas Gleixner <t...@linutronix.de>
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