> Actually, I have to correct myself.  If you have a truncated hierarchy
> like you implemented, then it's actually still O(t), just with a big
> constant factor (64*128) divided out.
 
Yep - actually 64*63*128, never going to be significant.
(unless someone does a stupid kernel test that allocates
thousands of callout()s that all expire sometime next month.)

	David

-- 
David Laight: david@l8s.co.uk