linux-kernel - Re: [PATCH v2 0/2] sched/deadline: fixes and improvements

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Message-ID: <CAAq0SU=yzLOajp=0X_HZaTt0ZnKT-mC5ZH-FZmz5=+XZS4tVRg@mail.gmail.com>
Date: Wed, 7 Aug 2024 08:58:57 -0300
From: Wander Lairson Costa <wander@...hat.com>
To: Peter Zijlstra <peterz@...radead.org>
Cc: Juri Lelli <juri.lelli@...hat.com>, Ingo Molnar <mingo@...hat.com>, 
	Vincent Guittot <vincent.guittot@...aro.org>, Dietmar Eggemann <dietmar.eggemann@....com>, 
	Steven Rostedt <rostedt@...dmis.org>, Ben Segall <bsegall@...gle.com>, Mel Gorman <mgorman@...e.de>, 
	Valentin Schneider <vschneid@...hat.com>, "open list:SCHEDULER" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 0/2] sched/deadline: fixes and improvements

On Wed, Aug 7, 2024 at 7:59 AM Peter Zijlstra <peterz@...radead.org> wrote:
>
> On Thu, Jul 25, 2024 at 09:29:26AM +0200, Juri Lelli wrote:
> > Hi Wander,
> >
> > On 24/07/24 11:22, Wander Lairson Costa wrote:
> > > Hello,
> > >
> > > This patch series addresses specific issues and improvements within
> > > the scheduler's deadline (DL) class. The patches aim to fix warnings,
> > > remove redundant checks, and consolidate timer cancellation logic for
> > > better consistency and code quality.
> > >
> > > Patch 1: Fix warning in migrate_enable for boosted tasks
> > >
> > > Fix a warning caused by unnecessary calls to setup_new_dl_entity for
> > > boosted tasks during CPU migate_enable calls.
> > >
> > > Patch 2: sched/deadline: Consolidate Timer Cancellation
> > >
> > > Consolidate timer cancellation logic into dedicated functions,
> > > ensuring consistent behavior and reducing code duplication.
> > >
> > > Changelog
> > > ---------
> > >
> > > v2:
> > > * Drop patch to remove the redundant WARN_ON call.
> > > * Change the "Fixes" tag in the patch 1.
> > > * Change function names in the patch 2.
> > >
> > > Wander Lairson Costa (2):
> > >   sched/deadline: Fix warning in migrate_enable for boosted tasks
> > >   sched/deadline: Consolidate Timer Cancellation
> > >
> > >  kernel/sched/deadline.c | 45 ++++++++++++++++++++++++++---------------
> > >  1 file changed, 29 insertions(+), 16 deletions(-)
> >
> > Looks good to me now.
> >
> > Acked-by: Juri Lelli <juri.lelli@...hat.com>
>
> I stuck this in queue/sched/core, but there was some trivial rejects on
> the second patch, which I stomped on. It builds, but please double check
> I didn't mess it up.
>

I gave it a look and everything seems fine.