linux-kernel - Re: [PATCH rcu 00/11] Lazy Preempt changes for v6.15

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Message-ID: <a43b531a-241e-4a0a-b373-5a111b519d0f@paulmck-laptop>
Date: Thu, 27 Feb 2025 15:47:36 -0800
From: "Paul E. McKenney" <paulmck@...nel.org>
To: Ankur Arora <ankur.a.arora@...cle.com>
Cc: Boqun Feng <boqun.feng@...il.com>, rcu@...r.kernel.org,
	Frederic Weisbecker <frederic@...nel.org>,
	Neeraj Upadhyay <neeraj.upadhyay@...nel.org>,
	Joel Fernandes <joel@...lfernandes.org>,
	Josh Triplett <josh@...htriplett.org>,
	Uladzislau Rezki <urezki@...il.com>,
	Steven Rostedt <rostedt@...dmis.org>,
	Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
	Lai Jiangshan <jiangshanlai@...il.com>,
	Zqiang <qiang.zhang1211@...il.com>,
	Davidlohr Bueso <dave@...olabs.net>, 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>,
	Ben Segall <bsegall@...gle.com>, Mel Gorman <mgorman@...e.de>,
	Valentin Schneider <vschneid@...hat.com>,
	Masami Hiramatsu <mhiramat@...nel.org>,
	Shuah Khan <shuah@...nel.org>,
	Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
	Clark Williams <clrkwllms@...nel.org>, linux-kernel@...r.kernel.org,
	linux-trace-kernel@...r.kernel.org, linux-kselftest@...r.kernel.org,
	linux-rt-devel@...ts.linux.dev
Subject: Re: [PATCH rcu 00/11] Lazy Preempt changes for v6.15

On Thu, Feb 27, 2025 at 03:33:04PM -0800, Ankur Arora wrote:
> 
> Boqun Feng <boqun.feng@...il.com> writes:
> 
> > Hi,
> >
> > Please find the upcoming changes for CONFIG_PREEMPT_LAZY in RCU. The
> > changes can also be found at:
> >
> > 	git://git.kernel.org/pub/scm/linux/kernel/git/rcu/linux.git lazypreempt.2025.02.24a
> >
> > Paul & Ankur, I put patch #7 and #8 (bug fixes in rcutorture) before
> > patch #9 (which is the one that enables non-preemptible RCU in
> > preemptible kernel), because I want to avoid introduce a bug in-between
> > a series, appreciate it if you can double check on this. Thanks!
> 
> Makes sense to me.

Looks good to me as well, and thank you for spotting this!

							Thanx, Paul