linux-kernel - Re: [Question] Linux CFS sched

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Date:	Tue, 25 Mar 2014 21:02:29 +0800
From:	lwcheng@...hku.hk
To:	Morten Rasmussen <morten.rasmussen@....com>
Cc:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [Question] Linux CFS sched_entity


Quoting Morten Rasmussen <morten.rasmussen@....com>:

> On Mon, Mar 17, 2014 at 04:55:41AM +0000, lwcheng@...hku.hk wrote:
>> In what situations does cfs_rq->curr point to a task_group?
>> What's the sense? I thought it should always contain a "real" task.
>
> In nested task groups cfs_rq->curr may point to a sched_entity which is
> a nested task group (cfs_rq).
>
> parent_group -> child_group -> task
>
> Morten

Thanks for your reply.

Luwei



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