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

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 <redacted>