[PATCH] Fix off by one error in page_region_mask()

[Christoph Hellwig]

On Mon, Jan 19, 2009 at 05:53:37PM +1100, Lachlan McIlroy wrote:
> Lachlan McIlroy wrote:
> > Christoph Hellwig wrote:
> >> Did you guys come to a conclusion in your discussions?
> >>
> > No conclusion, well nothing that resulted in an ack.
> 
> Was anyone okay with this fix?

I think it's okay to go.  It fixes the one off so it's go.

The code is still a very hard to understand mess, but that's not what
the patch was supposed to fix..