Some tweaks to the cpu affinity code.

 - Split up choosing of cpu between fork and "normal" cases. Fork is
   very different and should be treated as such.
 - Instead of implicitly choosing a cpu in setrunqueue, do it outside
   where it actually makes sense.
 - Just because a cpu is marked as idle doesn't mean it will be soon.
   There could be a thundering herd effect if we call wakeup from an
   interrupt handler, so subtract cpus with queued processes when
   deciding which cpu is actually idle.
 - some simplifications allowed by the above.

kettenis@ ok (except one bugfix that was not in the intial diff)

0 files changed, 0 insertions, 0 deletions