[PATCH 02/14] spufs: fix local store page refcounting

[Nathan Lynch]

Paul Mackerras wrote:
> Pekka Enberg writes:
> 
> > I would prefer them to stay in arch/powerpc/. As far as I understand,
> > spufs will never have any use for platforms other than cell, so I really
> > don't see any point in putting it in fs/.
> 
> The point is that people making changes to the filesystem interfaces
> will be much more likely to notice and fix stuff that is under fs/
> than code that is buried deep under arch/ somewhere.  Filesystems
> should go under fs/ for the sake of long-term maintainability.  The
> fact that it's only used on one architecture is irrelevant - you
> simply make sure (with the appropriate Kconfig bits) that it's only
> offered on that architecture.

openpromfs seems to be a precedent here.  It makes sense only on sparc
and sparc64 but it lives in fs/.