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SubjectRe: [PATCH tip/core/rcu] classic RCU locking and memory-barrier cleanups

* Paul E. McKenney <> wrote:

> This patch simplifies the locking and memory-barrier usage in the
> Classic RCU grace-period-detection mechanism, incorporating Lai
> Jiangshan's feedback from the earlier version
> ( and
> Passed 10 hours of rcutorture
> concurrent with CPUs being put online and taken offline on a
> 128-hardware-thread Power machine. My apologies to whoever in the
> Eastern Hemisphere was planning to use this machine over the Western
> Hemisphere night, but it was sitting idle and...
> So this is ready for tip/core/rcu.

applied to tip/core/rcu - thanks Paul!


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