linux-kernel - Re: [PATCH 2/3] sched: enforce per-cpu utilization limits on runtime balancing

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <1267129702.22519.558.camel@laptop>
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/