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SubjectRe: [PATCH 2/3] sched: enforce per-cpu utilization limits on runtime balancing
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On Tue, 2010-02-23 at 19:56 +0100, Fabio Checconi wrote:
> + /*
> + * Make sure that before restarting balancing everyone
> + * sees the new free bandwidth.
> + */
> + smp_wmb();

You cannot order something on its own, barriers come in pairs, where is
his?



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