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Date: Mon, 12 Dec 2022 12:22:43 +0100
From: Peter Zijlstra <peterz@...radead.org>
To: Tejun Heo <tj@...nel.org>
Cc: torvalds@...ux-foundation.org, mingo@...hat.com,
juri.lelli@...hat.com, vincent.guittot@...aro.org,
dietmar.eggemann@....com, rostedt@...dmis.org, bsegall@...gle.com,
mgorman@...e.de, bristot@...hat.com, vschneid@...hat.com,
ast@...nel.org, daniel@...earbox.net, andrii@...nel.org,
martin.lau@...nel.org, joshdon@...gle.com, brho@...gle.com,
pjt@...gle.com, derkling@...gle.com, haoluo@...gle.com,
dvernet@...a.com, dschatzberg@...a.com, dskarlat@...cmu.edu,
riel@...riel.com, linux-kernel@...r.kernel.org,
bpf@...r.kernel.org, kernel-team@...a.com
Subject: Re: [PATCH 05/31] sched: Add sched_class->reweight_task()
On Tue, Nov 29, 2022 at 10:22:47PM -1000, Tejun Heo wrote:
> diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
> index a4a20046e586..08799b2a566e 100644
> --- a/kernel/sched/sched.h
> +++ b/kernel/sched/sched.h
> @@ -2193,6 +2193,8 @@ struct sched_class {
> */
> void (*switched_from)(struct rq *this_rq, struct task_struct *task);
> void (*switched_to) (struct rq *this_rq, struct task_struct *task);
> + void (*reweight_task)(struct rq *this_rq, struct task_struct *task,
> + int newprio);
> void (*prio_changed) (struct rq *this_rq, struct task_struct *task,
> int oldprio);
Hurmph.. this further propagate the existing problem of thinking that
'prio' is a useful concept in general (it isn't).
Yeah, you're just following precedent here, but still :/
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