[RFC] updating lmb.memory information for hot mem add/remove

[David Miller]

From: Badari Pulavarty <pbadari at us.ibm.com>
Date: Fri, 29 Feb 2008 17:12:44 -0800

> Here is what I cooked up and it seems to work fine.
> It may be easier to review the code (against my earlier patches).

BTW, the lmb code now lives under lib/ (sparc64 will be using it too)
and has several bug fixes applied to it in Paulus's current upstream
tree.