[PATCH 0/7] IPV4 routing path simplifications

These cleanups and simplifications are based upon work I have been
doing over the past day analyzing why slow path route resolution
has so much overhead.

They are close to trivial and certainly not controversial so I've
added them to net-next-2.6

I know a new spin of the routing cache deletion patch is necessary so
that it applies cleanly relative to this stuff, and I'll post that in
a little bit.

Thanks.