Patrick,
	Here's the pre-reqs to my patch.  I put in a memblk_online_map (just like 
cpu_online_map) and associated functions (memblk_online(), etc).
	Also there's a include/linux/topology.h that has some wrappers for the 
in-kernel macros.  Just does bound checking, etc.

	This patch sits on top of 2.5.39-mm1 (which includes my in-kernel 
topology API).  The *real* driverfs additions will sit on top of this 
patch...  Coming momentarily...

Cheers!

-Matt