linux-kernel - RE: [PATCH] scheduler: domain: init next_balance in nohz_idle

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Date:	Tue, 31 Jan 2012 21:02:17 +0100
From:	Peter Zijlstra <peterz@...radead.org>
To:	Diwakar Tundlam <dtundlam@...dia.com>
Cc:	Peter De Schrijver <pdeschrijver@...dia.com>,
	Ingo Molnar <mingo@...e.hu>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	'Kamalesh Babulal' <kamalesh@...ux.vnet.ibm.com>
Subject: RE: [PATCH] scheduler: domain: init next_balance in
 nohz_idle_balancer with jiffies

On Tue, 2012-01-31 at 11:23 -0800, Diwakar Tundlam wrote:
> Here's the patch for kernel 3.3-rc1:
> 
> ** kernel/sched/fair.c	2012-01-31 11:19:52.032421593 -0800
> ***************
> *** 5585,5597 ****
>   
>   __init void init_sched_fair_class(void)
>   {
>   #ifdef CONFIG_SMP
>   	open_softirq(SCHED_SOFTIRQ, run_rebalance_domains);
>   
>   #ifdef CONFIG_NO_HZ
>   	zalloc_cpumask_var(&nohz.idle_cpus_mask, GFP_NOWAIT);
> + 	nohz.next_balance = jiffies;
>   #endif
>   #endif /* SMP */
>   
>   }

This is not something I can apply, please see
Documentation/SubmittingPatches.
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