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From: Steven Rostedt <rostedt@goodmis.org>
To: Peter Zijlstra <peterz@infradead.org>
Cc: Xunlei Pang <pang.xunlei@linaro.org>,
linux-kernel@vger.kernel.org, Juri Lelli <juri.lelli@gmail.com>
Subject: Re: [PATCH 4/5] sched/rt: Consider deadline tasks in cpupri_find()
Date: Tue, 27 Jan 2015 18:04:38 -0500 [thread overview]
Message-ID: <20150127180438.445d8e76@gandalf.local.home> (raw)
In-Reply-To: <20150127125859.GD21418@twins.programming.kicks-ass.net>
On Tue, 27 Jan 2015 13:58:59 +0100
Peter Zijlstra <peterz@infradead.org> wrote:
> Not a bad idea, Cc'ed Steve who likes to look after the RT bits,
> excessive quoting for him.
Yep I do.
> > index ade2958..48c9576 100644
> > --- a/kernel/sched/core.c
> > +++ b/kernel/sched/core.c
> > @@ -5652,6 +5652,8 @@ static int init_rootdomain(struct root_domain *rd)
> >
> > if (cpupri_init(&rd->cpupri) != 0)
> > goto free_rto_mask;
> > +
> > + rd->cpupri.cpudl = &rd->cpudl;
>
> This is disgusting though; it breaks the cpuri abstraction. Why not pass
> in the mask in the one place you actually need it?
Yeah, probably should change cpupri_init() to take the rd->cpudl as a
parameter.
Rest looks good (ignoring Peter's other comment that he realized wasn't
an issue).
-- Steve
next prev parent reply other threads:[~2015-01-27 23:04 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-01-19 4:49 [PATCH 1/5] sched/deadline: Modify cpudl::free_cpus to reflect rd->online Xunlei Pang
2015-01-19 4:49 ` [PATCH 2/5] sched/deadline: Remove cpu_active_mask from cpudl_find() Xunlei Pang
2015-01-27 15:04 ` Peter Zijlstra
2015-02-04 14:36 ` [tip:sched/core] " tip-bot for Xunlei Pang
2015-01-19 4:49 ` [PATCH 3/5] sched/deadline: Fix wrong cpudl_find() in check_preempt_equal_dl() Xunlei Pang
2015-01-27 12:48 ` Peter Zijlstra
2015-01-27 14:15 ` Peter Zijlstra
2015-01-27 16:47 ` Peter Zijlstra
2015-01-28 15:18 ` Xunlei Pang
2015-01-19 4:49 ` [PATCH 4/5] sched/rt: Consider deadline tasks in cpupri_find() Xunlei Pang
2015-01-27 12:58 ` Peter Zijlstra
2015-01-27 14:18 ` Peter Zijlstra
2015-01-27 23:04 ` Steven Rostedt [this message]
2015-01-28 15:21 ` Xunlei Pang
2015-01-19 4:49 ` [PATCH 5/5] sched/rt: Optimize find_lowest_rq() to select a cache hot cpu Xunlei Pang
2015-01-27 14:21 ` Peter Zijlstra
2015-01-27 14:56 ` Steven Rostedt
2015-01-27 16:28 ` Peter Zijlstra
2015-01-29 16:42 ` Xunlei Pang
2015-01-29 17:17 ` Steven Rostedt
2015-01-29 19:23 ` Peter Zijlstra
2015-02-04 13:07 ` Xunlei Pang
2015-01-23 18:09 ` [PATCH 1/5] sched/deadline: Modify cpudl::free_cpus to reflect rd->online Xunlei Pang
2015-02-01 17:53 ` [tip:sched/core] sched/deadline: Modify cpudl:: free_cpus " tip-bot for Xunlei Pang
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