When I booted my new 720 on a kernel configured for NUMA, I received
the following during bootup:

WARNING: Unexpected node layout: region start 44000000 length 2000000
NUMA is disabled

This is due to memory 'holes' within nodes.  If such holes are
encountered, then NUMA is disabled.  The following patch adds support
for such configurations.

This patch gets the cell sizes before extracting the cells.  I have made this
change to existing code in the file, as well as the code I added.
Signed-off-by: Mike Kravetz <kravetz@us.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>