linux-kernel - Re: [PATCH v5] sched/deadline: remove useless param from setup_new_dl

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Date:	Fri, 5 Aug 2016 16:02:18 +0100
From:	Juri Lelli <juri.lelli@....com>
To:	Steven Rostedt <rostedt@...dmis.org>
Cc:	peterz@...radead.org, linux-kernel@...r.kernel.org,
	mingo@...hat.com, luca.abeni@...tn.it, xpang@...hat.com
Subject: Re: [PATCH v5] sched/deadline: remove useless param from
 setup_new_dl_entity

On 05/08/16 10:54, Steven Rostedt wrote:
> On Fri, 5 Aug 2016 15:34:44 +0100
> Juri Lelli <juri.lelli@....com> wrote:
> 
> > On 05/08/16 09:56, Steven Rostedt wrote:
> > > On Fri,  5 Aug 2016 11:09:59 +0100
> > > Juri Lelli <juri.lelli@....com> wrote:
> > >   
> > > > @@ -1720,19 +1720,28 @@ static void switched_from_dl(struct rq *rq, struct task_struct *p)
> > > >   */
> > > >  static void switched_to_dl(struct rq *rq, struct task_struct *p)
> > > >  {
> > > > -	if (dl_time_before(p->dl.deadline, rq_clock(rq)))
> > > > -		setup_new_dl_entity(&p->dl, &p->dl);
> > > >  
> > > > -	if (task_on_rq_queued(p) && rq->curr != p) {
> > > > +	if (task_on_rq_queued(p)) {  
> > > 
> > > I always hated functions totally encapsulated by an if statement. This
> > > can be a bit simpler (and less indented) if you have:
> > > 
> > > 	/* If p is not queued, its parameters will be updated at wakeup */
> > > 	if (!task_on_rq_queued(p))
> > > 		return;
> > > 
> > > 	[...]
> > >   
> > 
> > You mean like what follows?
> > 
> > I'll post a v6 if OK.
> > 
> 
> Yes! I think that looks much nicer, and easier to read.
> 

Yep. Way better. :)

> You can add my Reviewed-by tag too.
> 

Thanks!

Best,

- Juri