[PATCH V3 1/2] mm: Update generic gup implementation to handle hugepage directory

[Andrew Morton]

On Sat, 25 Oct 2014 16:14:19 +0530 "Aneesh Kumar K.V" <aneesh.kumar at linux.vnet.ibm.com> wrote:

> Update generic gup implementation with powerpc specific details.
> On powerpc at pmd level we can have hugepte, normal pmd pointer
> or a pointer to the hugepage directory.

I grabbed these.  It would be better if they were merged into the powerpc
tree where they'll get more testing than in linux-next alone.