[PATCH v11 0/3] mm, x86, powerpc: Enhancements to Memory Protection Keys.

[Ingo Molnar]

* Ram Pai <linuxram at us.ibm.com> wrote:

> This patch series provides arch-neutral enhancements to
> enable memory-keys on new architecutes, and the corresponding
> changes in x86 and powerpc specific code to support that.
> 
> a) Provides ability to support upto 32 keys.  PowerPC
> 	can handle 32 keys and hence needs this.
> 
> b) Arch-neutral code; and not the arch-specific code,
>    determines the format of the string, that displays the key
>    for each vma in smaps.
> 
> PowerPC implementation of memory-keys is now in powerpc/next tree.
> https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git/commit/?h=next&id=92e3da3cf193fd27996909956c12a23c0333da44

All three patches look sane to me. If you would like to carry these generic bits 
in the PowerPC tree as well then:

  Reviewed-by: Ingo Molnar <mingo at kernel.org>

Thanks,

	Ingo