linux-kernel - Re: [PATCH rcu 2/2] torture: Add lock_torture writer

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Date:   Mon, 7 Aug 2023 21:00:49 -0700
From:   "Paul E. McKenney" <paulmck@...nel.org>
To:     John Stultz <jstultz@...gle.com>
Cc:     rcu@...r.kernel.org, linux-kernel@...r.kernel.org,
        kernel-team@...a.com, rostedt@...dmis.org,
        Dietmar Eggemann <dietmar.eggemann@....com>,
        Josh Triplett <josh@...htriplett.org>,
        Joel Fernandes <joel@...lfernandes.org>,
        Juri Lelli <juri.lelli@...hat.com>,
        Valentin Schneider <vschneid@...hat.com>,
        kernel-team@...roid.com, Davidlohr Bueso <dave@...olabs.net>
Subject: Re: [PATCH rcu 2/2] torture: Add lock_torture writer_fifo module
 parameter

On Mon, Aug 07, 2023 at 08:27:29PM -0700, John Stultz wrote:
> On Thu, Jul 27, 2023 at 8:22 PM Paul E. McKenney <paulmck@...nel.org> wrote:
> >
> > From: Dietmar Eggemann <dietmar.eggemann@....com>
> >
> > This commit adds a module parameter that causes the locktorture writer
> > to run at real-time priority.
> >
> > To use it:
> > insmod /lib/modules/torture.ko random_shuffle=1
> > insmod /lib/modules/locktorture.ko torture_type=mutex_lock rt_boost=1 rt_boost_factor=50 nested_locks=3 writer_fifo=1
> >                                                                                                         ^^^^^^^^^^^^^
> >
> > A predecessor to this patch has been helpful to uncover issues with the
> > proxy-execution series.
> >
> > [ paulmck: Remove locktorture-specific code from kernel/torture.c. ]
> 
> Thanks again for improving this!  I've switched over to your version
> here in my test tree.
> 
> Acked-by: John Stultz <jstultz@...gle.com>

Thank you both!  I will apply on my next rebase.

							Thanx, Paul