linux-kernel - Re: [RFC PATCH v2 08/25] sched/deadline: Account rt-cgroups bandwidth in deadline tasks schedulability tests.

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Message-ID: <aJ3evCuoSV83FCx8@jlelli-thinkpadt14gen4.remote.csb>
Date: Thu, 14 Aug 2025 15:03:56 +0200
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 v2 08/25] sched/deadline: Account rt-cgroups
 bandwidth in deadline tasks schedulability tests.

Hi!

On 31/07/25 12:55, Yuri Andriaccio wrote:
> From: luca abeni <luca.abeni@...tannapisa.it>
> 
> Account the rt-cgroups hierarchy's reserved bandwidth in the schedulability
> test of deadline entities. This mechanism allows to completely reserve portion
> of the rt-bandwidth to rt-cgroups even if they do not use all of it.
> 
> 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>
> ---

I wonder if, from a series flow perspective, would make sense to move
this one and the following after the changes that deal with groups
initialization. Also, please consider a little bit of squashing.

Thanks,
Juri