linux-kernel - Re: usage of DEFINE_WAIT_OVERRIDE_MAP(LD_WAIT

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Message-ID: <20251024103934.n4Lx1b9O@linutronix.de>
Date: Fri, 24 Oct 2025 12:39:34 +0200
From: Sebastian Andrzej Siewior <bigeasy@...utronix.de>
To: Oleg Nesterov <oleg@...hat.com>
Cc: "Luis Claudio R. Goncalves" <lgoncalv@...hat.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Clark Williams <clrkwllms@...nel.org>,
	Steven Rostedt <rostedt@...dmis.org>, Tejun Heo <tj@...nel.org>,
	David Vernet <dvernet@...a.com>, Barret Rhoden <brho@...gle.com>,
	Josh Don <joshdon@...gle.com>, Crystal Wood <crwood@...hat.com>,
	linux-kernel@...r.kernel.org, linux-rt-devel@...ts.linux.dev,
	Juri Lelli <juri.lelli@...hat.com>, Ben Segall <bsegall@...gle.com>,
	Dietmar Eggemann <dietmar.eggemann@....com>,
	Ingo Molnar <mingo@...hat.com>, Mel Gorman <mgorman@...e.de>,
	Valentin Schneider <vschneid@...hat.com>,
	Vincent Guittot <vincent.guittot@...aro.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Wander Lairson Costa <wander@...hat.com>
Subject: Re: usage of DEFINE_WAIT_OVERRIDE_MAP(LD_WAIT_SLEEP)

On 2025-10-24 12:26:16 [+0200], Oleg Nesterov wrote:
> > | /* PREEMPT_RT kernels map spinlock to rt_mutex */
> 
> Ah, indeed, I was confused and didn't even bother to read the definitions
> below, spinlock->dep_map is initialized by the same SPIN_DEP_MAP_INIT()...
> 
> Sebastian, thanks for correcting me! Sorry, I could not carefully read
> your emails yesterday.

No worries. Just let me know if the cited comment requires an update.

> Oleg.

Sebastian