[PATCH 02/25] powerpc: define an additional vma bit for protection keys.

[Ram Pai]

On Thu, Sep 14, 2017 at 02:38:07PM +1000, Balbir Singh wrote:
> On Fri,  8 Sep 2017 15:44:50 -0700
> Ram Pai <linuxram at us.ibm.com> wrote:
> 
> > powerpc needs an additional vma bit to support 32 keys.
> > Till the additional vma bit lands in include/linux/mm.h
> > we have to define  it  in powerpc specific header file.
> > This is  needed to get pkeys working on power.
> > 
> > Signed-off-by: Ram Pai <linuxram at us.ibm.com>
> > ---
> 
> "This" being an arch specific hack for the additional bit?


Yes. arch-specific hack.  I am trying to get the arch specific
changes merged parallelly, along with these patches. Don't know
which one will merge first. Regardless of which patch-set
lands-in first; I have organized the code such that nothing
breaks.

RP