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Date: Thu, 25 Feb 2010 21:28:22 +0100 From: Peter Zijlstra <peterz@...radead.org> To: Fabio Checconi <fchecconi@...il.com> Cc: Ingo Molnar <mingo@...e.hu>, Thomas Gleixner <tglx@...utronix.de>, Paul Turner <pjt@...gle.com>, Dario Faggioli <faggioli@...dalf.sssup.it>, Michael Trimarchi <michael@...dence.eu.com>, Dhaval Giani <dhaval@...is.sssup.it>, Tommaso Cucinotta <t.cucinotta@...up.it>, linux-kernel@...r.kernel.org, Fabio Checconi <fabio@...dalf.sssup.it> Subject: Re: [PATCH 2/3] sched: enforce per-cpu utilization limits on runtime balancing 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? -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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