linux-kernel - Re: [PATCH 05/12] sched: Move sched_class::prio

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Message-ID: <20260113115309.GB831050@noisy.programming.kicks-ass.net>
Date: Tue, 13 Jan 2026 12:53:09 +0100
From: Peter Zijlstra <peterz@...radead.org>
To: K Prateek Nayak <kprateek.nayak@....com>
Cc: Pierre Gondois <pierre.gondois@....com>, tj@...nel.org,
	linux-kernel@...r.kernel.org, mingo@...nel.org,
	juri.lelli@...hat.com, vincent.guittot@...aro.org,
	dietmar.eggemann@....com, rostedt@...dmis.org, bsegall@...gle.com,
	mgorman@...e.de, vschneid@...hat.com, longman@...hat.com,
	hannes@...xchg.org, mkoutny@...e.com, void@...ifault.com,
	arighi@...dia.com, changwoo@...lia.com, cgroups@...r.kernel.org,
	sched-ext@...ts.linux.dev, liuwenfang@...or.com, tglx@...utronix.de,
	Christian Loehle <christian.loehle@....com>
Subject: Re: [PATCH 05/12] sched: Move sched_class::prio_changed() into the
 change pattern

On Tue, Jan 13, 2026 at 04:35:02PM +0530, K Prateek Nayak wrote:

> Does enabling WARN_DOUBLE_CLOCK warn of a double clock update before
> hitting this warning?

setup_new_dl_entity() -> update_rq_clock() seems like it will trip that
in this case.