voluntary-preempt-2.6.9-rc2-mm1-S3

i've released the -S3 VP patch:

   http://redhat.com/~mingo/voluntary-preempt/voluntary-pree...

most importantly, -S3 fixes the SMP+PREEMPT bug reported by K.R. Foley. 
It was a bug in BKL-preemption: forced preemption still caused automatic
dropping of the BKS - this is bad and broke fs/locks.c. (The race could
occur on UP+PREEMPT too but it has never been reproduced there.)

other changes since -S2:

 - introduced a CONFIG_PREEMPT_BKL - just in case there are other
   problems. This can be used to turn BKL preemption on/off. Can be 
   useful for performance tests as well.

 - fixed a couple of more smp_processor_id() false positives.

 - cleaned up hardirq.c some more

To get a 2.6.9-rc2-mm1-VP-S3 kernel, the patching order is:
 
   http://kernel.org/pub/linux/kernel/v2.6/linux-2.6.8.tar.bz2
 + http://kernel.org/pub/linux/kernel/v2.6/testing/patch-2.6...
 + http://kernel.org/pub/linux/kernel/people/akpm/patches/2....
 + http://redhat.com/~mingo/voluntary-preempt/voluntary-pree...

	Ingo
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