linux-kernel - Re: [PATCH 1/3] sched: use EDF to schedule groups

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Message-ID: <1267129700.22519.557.camel@laptop>
Date:	Thu, 25 Feb 2010 21:28:20 +0100
From:	Peter Zijlstra <peterz@...radead.org>
To:	Fabio Checconi <fchecconi@...il.com>
Cc:	Ingo Molnar <mingo@...e.hu>, Thomas Gleixner <tglx@...utronix.de>,
	Paul Turner <pjt@...gle.com>,
	Dario Faggioli <faggioli@...dalf.sssup.it>,
	Michael Trimarchi <michael@...dence.eu.com>,
	Dhaval Giani <dhaval@...is.sssup.it>,
	Tommaso Cucinotta <t.cucinotta@...up.it>,
	linux-kernel@...r.kernel.org,
	Fabio Checconi <fabio@...dalf.sssup.it>
Subject: Re: [PATCH 1/3] sched: use EDF to schedule groups

On Tue, 2010-02-23 at 19:56 +0100, Fabio Checconi wrote:
> @@ -36,7 +29,8 @@ static inline struct task_struct *rt_task_of(struct sched_rt_entity *rt_se)
>  
>  static inline struct rq *rq_of_rt_rq(struct rt_rq *rt_rq)
>  {
> -       return container_of(rt_rq, struct rq, rt);
> +       struct rt_root_rq *rt = container_of(rt_rq, struct rt_root_rq, rt_rq);
> +       return container_of(rt, struct rq, rt);
>  } 

I think you can write that double container_of() as a single:

 return container_of(rt_rq, struct rq, rt.rt_rq);



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