[patch] O(1) scheduler, 2.5.2-pre9-C1

[Ingo Molnar]

i've uploaded an updated O(1) scheduler patch, against 2.5.2-pre9:

 	http://redhat.com/~mingo/O(1)-scheduler/sched-O1-2.5.2-C1.patch
 	http://redhat.com/~mingo/O(1)-scheduler/sched-O1-2.4.17-C1.patch

only minimal fixes were added to the code, the goal is to reach a stable
base.

Changelog:

 - fixed the mozilla crash, forgot to revert the ->prio value in
   setscheduler() which caused a wrong index ... (many thanks go to Pawel
   Kot for testing this out.)

 - fixed a load balancer bug that would get the runqueue count incorrectly
   if there is a RT running. With this fixed a 2-CPU system is completely
   usable even if a RT task is taking up 100% CPU time on one of the CPUs.

 - fix the sys_sched_yield export in ksyms.c (Davide Libenzi)

 - adds an RT event counter to optimize RT scheduling. (Davide, me)

	Ingo