linux-kernel - Re: [PATCH sched_ext/for-6.17 2/2] sched_ext: Add support for cgroup bandwidth control interface

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Message-ID: <aFYhOpvAOC-Fc6Rc@slm.duckdns.org>
Date: Fri, 20 Jun 2025 17:04:26 -1000
From: Tejun Heo <tj@...nel.org>
To: David Vernet <void@...ifault.com>, Andrea Righi <arighi@...dia.com>,
	Changwoo Min <changwoo@...lia.com>
Cc: linux-kernel@...r.kernel.org, sched-ext@...ts.linux.dev,
	Ingo Molnar <mingo@...hat.com>,
	Peter Zijlstra <peterz@...radead.org>
Subject: Re: [PATCH sched_ext/for-6.17 2/2] sched_ext: Add support for cgroup
 bandwidth control interface

On Fri, Jun 13, 2025 at 03:34:22PM -1000, Tejun Heo wrote:
> From 077814f57f8acce13f91dc34bbd2b7e4911fbf25 Mon Sep 17 00:00:00 2001
> From: Tejun Heo <tj@...nel.org>
> Date: Fri, 13 Jun 2025 15:06:47 -1000
> 
> - Add CONFIG_GROUP_SCHED_BANDWIDTH which is selected by both
>   CONFIG_CFS_BANDWIDTH and EXT_GROUP_SCHED.
> 
> - Put bandwidth control interface files for both cgroup v1 and v2 under
>   CONFIG_GROUP_SCHED_BANDWIDTH.
> 
> - Update tg_bandwidth() to fetch configuration parameters from fair if
>   CONFIG_CFS_BANDWIDTH, SCX otherwise.
> 
> - Update tg_set_bandwidth() to update the parameters for both fair and SCX.
> 
> - Add bandwidth control parameters to struct scx_cgroup_init_args.
> 
> - Add sched_ext_ops.cgroup_set_bandwidth() which is invoked on bandwidth
>   control parameter updates.
> 
> - Update scx_qmap and maximal selftest to test the new feature.
> 
> Signed-off-by: Tejun Heo <tj@...nel.org>

Applied 1-2 to sched_ext/for-6.17.

Thanks.

-- 
tejun