linux-kernel - Re: [PATCH v5 09/14] sched/debug: Add support to change sched

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Message-ID: <aFnRUA1oY7BsBncv@slm.duckdns.org>
Date: Mon, 23 Jun 2025 12:12:32 -1000
From: Tejun Heo <tj@...nel.org>
To: Joel Fernandes <joelagnelf@...dia.com>
Cc: linux-kernel@...r.kernel.org, Ingo Molnar <mingo@...hat.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Juri Lelli <juri.lelli@...hat.com>,
	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>,
	David Vernet <void@...ifault.com>, Andrea Righi <arighi@...dia.com>,
	Changwoo Min <changwoo@...lia.com>
Subject: Re: [PATCH v5 09/14] sched/debug: Add support to change sched_ext
 server params

On Fri, Jun 20, 2025 at 04:32:24PM -0400, Joel Fernandes wrote:
...
> -		if (!runtime)
> -			printk_deferred("Fair server disabled in CPU %d, system may crash due to starvation.\n",
> -					cpu_of(rq));
> +		if (!runtime) {
> +			if (server == &rq->fair_server)
> +				printk_deferred("Fair server disabled on CPU %d, system may crash due to starvation.\n",
> +						cpu_of(rq));
> +			else
> +				printk_deferred("Ext server disabled on CPU %d, system may crash due to starvation.\n",
> +						cpu_of(rq));

It's minor but the above is a bit ugly. Maybe pass in the name as an arg or
put it in dl_se?

Thanks.

-- 
tejun