switch the remaining architectures to use generic GUP v3

[Jason Gunthorpe]

On Tue, Jun 11, 2019 at 04:40:46PM +0200, Christoph Hellwig wrote:
> Hi Linus and maintainers,
> 
> below is a series to switch mips, sh and sparc64 to use the generic
> GUP code so that we only have one codebase to touch for further
> improvements to this code.  I don't have hardware for any of these
> architectures, and generally no clue about their page table
> management, so handle with care.

I like this series, ther are alot of people talking about work for GUP
and this will make any of that so much easier to do.

Jason