linux-kernel - Re: [PATCH sched_ext/for-6.17 1/2] sched_ext, sched/core: Factor out struct scx_task

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Message-ID: <20250617085027.GM1613376@noisy.programming.kicks-ass.net>
Date: Tue, 17 Jun 2025 10:50:27 +0200
From: Peter Zijlstra <peterz@...radead.org>
To: Tejun Heo <tj@...nel.org>
Cc: David Vernet <void@...ifault.com>, Andrea Righi <arighi@...dia.com>,
	Changwoo Min <changwoo@...lia.com>, linux-kernel@...r.kernel.org,
	sched-ext@...ts.linux.dev, Ingo Molnar <mingo@...hat.com>
Subject: Re: [PATCH sched_ext/for-6.17 1/2] sched_ext, sched/core: Factor out
 struct scx_task_group

On Fri, Jun 13, 2025 at 03:33:10PM -1000, Tejun Heo wrote:
> From 55aa129e6add97a98340326451bdadd4c5dd3242 Mon Sep 17 00:00:00 2001
> From: Tejun Heo <tj@...nel.org>
> Date: Fri, 13 Jun 2025 15:06:47 -1000
> 
> More sched_ext fields will be added to struct task_group. In preparation,
> factor out sched_ext fields into struct scx_task_group to reduce clutter in
> the common header. No functional changes.
> 
> Signed-off-by: Tejun Heo <tj@...nel.org>
> ---
> These two patches are on top of:
> 
>  + Two fix pathces pending on sched_ext/for-6.16-fixes
>      http://lkml.kernel.org/r/aEyy27BecPPHDWHc@slm.duckdns.org
>      http://lkml.kernel.org/r/aEyzhBAl5zkP6Ku-@slm.duckdns.org
>  + tip/sched/core patchset to reorganize bandwidth control interface handling
>      http://lkml.kernel.org/r/20250614012346.2358261-1-tj@kernel.org
> 
> See the following git branch for the merged result:
> 
>   git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext.git scx-bandwidth-control
> 
> Peter, while this touches sched.h, the change is contained to scx part and
> shouldn't cause noticeable problems for other scheduler changes. I'll carry
> this through sched_ext/for-6.17. Please let me know if there are any
> concerns.

How do you want to do this dependency on the bandwidth rework? Should I
take those patches into tip/sched/core and then you base your tree on
top of that?