linux-kernel - Re: [RFC PATCH v15 2/7] locking/mutex: Rework task_struct::blocked

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Message-ID: <20250317114421.GB36386@noisy.programming.kicks-ass.net>
Date: Mon, 17 Mar 2025 12:44:21 +0100
From: Peter Zijlstra <peterz@...radead.org>
To: Steven Rostedt <rostedt@...dmis.org>
Cc: John Stultz <jstultz@...gle.com>, LKML <linux-kernel@...r.kernel.org>,
	Joel Fernandes <joelagnelf@...dia.com>,
	Qais Yousef <qyousef@...alina.io>, Ingo Molnar <mingo@...hat.com>,
	Juri Lelli <juri.lelli@...hat.com>,
	Vincent Guittot <vincent.guittot@...aro.org>,
	Dietmar Eggemann <dietmar.eggemann@....com>,
	Valentin Schneider <vschneid@...hat.com>,
	Ben Segall <bsegall@...gle.com>,
	Zimuzo Ezeozue <zezeozue@...gle.com>, Mel Gorman <mgorman@...e.de>,
	Will Deacon <will@...nel.org>, Waiman Long <longman@...hat.com>,
	Boqun Feng <boqun.feng@...il.com>,
	"Paul E. McKenney" <paulmck@...nel.org>,
	Metin Kaya <Metin.Kaya@....com>,
	Xuewen Yan <xuewen.yan94@...il.com>,
	K Prateek Nayak <kprateek.nayak@....com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Daniel Lezcano <daniel.lezcano@...aro.org>,
	Suleiman Souhlal <suleiman@...gle.com>, kernel-team@...roid.com,
	Connor O'Brien <connoro@...gle.com>,
	Masami Hiramatsu <mhiramat@...nel.org>
Subject: Re: [RFC PATCH v15 2/7] locking/mutex: Rework task_struct::blocked_on

On Thu, Mar 13, 2025 at 06:13:51AM -0400, Steven Rostedt wrote:
> 
> FYI, this is useful for Masami's "hung task" work that will show what
> tasks a hung task is blocked on in a crash report.

Yeah, but I would really rather not have that interfere.