[PATCH tip/core/rcu 0/3] rcu: resend of grace-period stall andcleanup patches

[Paul E. McKenney]

Hello!

This patch series is a resend of the three RCU patches that are candidates
for the upcoming 2.6.33 merge window, but that are not yet in -tip.
These are:

1.	A fix for a grace-period-stall bug that occurs on large
	machines.  This was partially fixed by commit 237c80c5,
	and this patch completes the fix using a much cleaner
	method.  237c80c5 would request another quiescent state
	for a CPU that just went offline and that might have already
	gone through a quiescent state for the current grace period.
	In contrast, this patch pushes the quiescent-state reporting
	up the rcu_node tree straightaway.

2.	A cleanup removing function wrapping that has been unnecessary
	since commit e74f4c45 caused CPUs going offline to give up
	their own callbacks.

3.	A cleanup that gets rid of a few annoying #ifdefs by moving
	the code from kernel/rcupdate.c and include/linux/rcupdate.h
	to include/linux/rcutiny.h, include/linux/rcutree.h, and
	kernel/rcutree.c.

							Thanx, Paul
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