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

    * Paul E. McKenney <paulmck@linux.vnet.ibm.com> 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
    > (http://lkml.org/lkml/2008/8/1/400 and
    > http://lkml.org/lkml/2008/8/3/43). 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!

    Ingo


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