[PATCH v12 3/3] mm, x86, powerpc: display pkey in smaps only if arch supports pkeys

[Dave Hansen]

On 02/21/2018 03:52 PM, Ram Pai wrote:
> Currently the  architecture  specific code is expected to
> display  the  protection  keys  in  smap  for a given vma.
> This can lead to redundant code and possibly to divergent
> formats in which the key gets displayed.
> 
> This  patch  changes  the implementation. It displays the
> pkey only if the architecture support pkeys, i.e
> arch_pkeys_enabled() returns true.  This patch
> provides x86 implementation for arch_pkeys_enabled().
> 
> x86 arch_show_smap() function is not needed anymore.
> Deleting it.

This looks fine to me.  Thanks for doing these, Ram.

Reviewed-by: Dave Hansen <dave.hansen at intel.com>