[PATCH 0/2] Fix a bug and cleanup NUMA boot-time code

[Dave Hansen]

The first patch in this series is a genuine bug fix.  The rest
are really just an RFC.

Jon introduced a bug a while ago.  I introduced another when
trying to fix Jon's bug.  I refuse to accept personal blame for
this and, instead, blame the code. :)

The reset of the series are "cleanups" that I think will help
clarify the code in numa.c and work to ensure that the next
bonehead like me is not as able to easily muck up the code. :)

The cleanups increase in impact and intrusiveness as the series
goes along, so please consider them an RFC.  But, what I really
want to figure out is a safer way to initialize NODE_DATA() and
start using it as we bring up bootmem on all the nodes.