linux-kernel - Re: [PATCH v4 08/12] sched/numa: use wrapper function task_faults_idx to calculate index in group

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Date:	Tue, 10 Dec 2013 15:36:52 -0500
From:	Naoya Horiguchi <n-horiguchi@...jp.nec.com>
To:	Wanpeng Li <liwanp@...ux.vnet.ibm.com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Ingo Molnar <mingo@...hat.com>, Rik van Riel <riel@...hat.com>,
	Mel Gorman <mgorman@...e.de>,
	Peter Zijlstra <peterz@...radead.org>,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org
Subject: Re: [PATCH v4 08/12] sched/numa: use wrapper function task_faults_idx
 to calculate index in group_faults

On Tue, Dec 10, 2013 at 05:19:31PM +0800, Wanpeng Li wrote:
> Use wrapper function task_faults_idx to calculate index in group_faults.

yes, it syncs group_faults() with task_faults().

> Signed-off-by: Wanpeng Li <liwanp@...ux.vnet.ibm.com>

Reviewed-by: Naoya Horiguchi <n-horiguchi@...jp.nec.com>

> ---
>  kernel/sched/fair.c |    3 ++-
>  1 files changed, 2 insertions(+), 1 deletions(-)
> 
> diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
> index e0b1063..7073c76 100644
> --- a/kernel/sched/fair.c
> +++ b/kernel/sched/fair.c
> @@ -935,7 +935,8 @@ static inline unsigned long group_faults(struct task_struct *p, int nid)
>  	if (!p->numa_group)
>  		return 0;
>  
> -	return p->numa_group->faults[2*nid] + p->numa_group->faults[2*nid+1];
> +	return p->numa_group->faults[task_faults_idx(nid, 0)] +
> +		p->numa_group->faults[task_faults_idx(nid, 1)];
>  }
>  
>  /*
> -- 
> 1.7.7.6
> 
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