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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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