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    SubjectRe: [PATCH RFC tip/core/rcu 11/11] rcu: move TREE_RCU from softirq to kthread
    On Wed, 23 Feb 2011, Paul E. McKenney wrote:

    > Reschedules can happen in this case due to CPU hotplug events. :-(

    Lockout cpu hotplug instead of disabling interrupts? Systems that support
    cpu hotplug in hardware are rare and so the cpu hotplug locking may be
    become noop.




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