linux-kernel - Re: [patch v3 3/6] sched, nohz: sched group, domain aware nohz idle load balancing

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Message-ID: <1323199637.1984.19.camel@sbsiddha-desk.sc.intel.com>
Date:	Tue, 06 Dec 2011 11:27:17 -0800
From:	Suresh Siddha <suresh.b.siddha@...el.com>
To:	Srivatsa Vaddagiri <vatsa@...ux.vnet.ibm.com>
Cc:	Peter Zijlstra <peterz@...radead.org>, Ingo Molnar <mingo@...e.hu>,
	Venki Pallipadi <venki@...gle.com>,
	Mike Galbraith <efault@....de>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	Tim Chen <tim.c.chen@...ux.jf.intel.com>,
	"Shi, Alex" <alex.shi@...el.com>
Subject: Re: [patch v3 3/6] sched, nohz: sched group, domain aware nohz idle
 load balancing

On Tue, 2011-12-06 at 11:19 -0800, Suresh Siddha wrote:
> From: Suresh Siddha <suresh.b.siddha@...el.com>
> Subject: sched, nohz: fix the idle cpu check in nohz_idle_balance
> 
> cpu bit in the nohz.idle_cpu_mask are reset in the first busy tick after
> exiting idle. So during nohz_idle_balance(), intention is to double
> check if the cpu that is part of the idle_cpu_mask is indeed idle before
> going ahead in performing idle balance for that cpu.
> 
> Fix the cpu typo in the idle_cpu() check during nohz_idle_balance().
> 
> Signed-off-by: Suresh Siddha <suresh.b.siddha@...el.com>

Should have added:

Reported-by: Srivatsa Vaddagiri <vatsa@...ux.vnet.ibm.com>

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