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Date: Mon, 17 Feb 2003 15:52:45 +0100 (CET)
From: Ingo Molnar <mingo@elte.hu>
Reply-To: Ingo Molnar <mingo@elte.hu>
To: Zwane Mwaikambo <zwane@holomorphy.com>
Cc: Linux Kernel <linux-kernel@vger.kernel.org>, Robert Love <rml@tech9.net>,
       Linus Torvalds <torvalds@transmeta.com>
Subject: Re: [PATCH][2.5] Don't wake up tasks on offline processors
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On Mon, 17 Feb 2003, Zwane Mwaikambo wrote:

> Ok i'll have a go at that instead, however how hard would it be to do a
> multiple lock acquisition of that magnitude on 16+ cpus?

just do a simple loop of spin_lock()'s over all online CPUs, in forward
order, ordering between runqueue locks is ordered by CPU number.

	Ingo

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