[PATCH/RFC] sysfs cache code rewrite

[Benjamin Herrenschmidt]

> I don't know quite the detail of the new cpumask stuff ... It could be
> as simple as passing a pointer instead of the value in the
> cpumask_scnprintf call though...

Actually, I'll do more tests and if that ends up being the only needed
change, I'll push your patch with that small change out to powerpc next
tonight.

Cheers,
Ben.