linux-kernel - Re: [RFC PATCH v4 07/28] sched/rt: Introduce HCBS specific structs in task

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Message-ID: <aWpCPdckSzwU3l00@jlelli-thinkpadt14gen4.remote.csb>
Date: Fri, 16 Jan 2026 14:50:53 +0100
From: Juri Lelli <juri.lelli@...hat.com>
To: Yuri Andriaccio <yurand2000@...il.com>
Cc: Ingo Molnar <mingo@...hat.com>, Peter Zijlstra <peterz@...radead.org>,
	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>,
	linux-kernel@...r.kernel.org,
	Luca Abeni <luca.abeni@...tannapisa.it>,
	Yuri Andriaccio <yuri.andriaccio@...tannapisa.it>
Subject: Re: [RFC PATCH v4 07/28] sched/rt: Introduce HCBS specific structs
 in task_group

Hello,

On 01/12/25 13:41, Yuri Andriaccio wrote:
> From: luca abeni <luca.abeni@...tannapisa.it>
> 
> Each task_group manages a number of new objects:
> - a sched_dl_entity/dl_server for each CPU
> - a dl_bandwidth object to keep track of its allocated dl_bandwidth

The changelog feels a little dry. I wonder if both changelog and maybe
documentation (in-code and/or later documentation patch) can benifit
from some kind of diagram depicting how these new and existing data
structure interact with each other and what they are useful for.

> Co-developed-by: Alessio Balsini <a.balsini@...up.it>
> Signed-off-by: Alessio Balsini <a.balsini@...up.it>
> Co-developed-by: Andrea Parri <parri.andrea@...il.com>
> Signed-off-by: Andrea Parri <parri.andrea@...il.com>
> Co-developed-by: Yuri Andriaccio <yurand2000@...il.com>
> Signed-off-by: Yuri Andriaccio <yurand2000@...il.com>
> Signed-off-by: luca abeni <luca.abeni@...tannapisa.it>

Anyway, the patch itself looks OK to me.

Reviewed-by: Juri Lelli <juri.lelli@...hat.com>

Thanks,
Juri