linux-kernel - Re: [PATCH v2 rcu-dev 1/3] rcuperf: Add ability to increase object allocation size

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Message-ID: <20200318010944.GQ3199@paulmck-ThinkPad-P72>
Date:   Tue, 17 Mar 2020 18:09:44 -0700
From:   "Paul E. McKenney" <paulmck@...nel.org>
To:     joel@...lfernandes.org
Cc:     LKML <linux-kernel@...r.kernel.org>,
        Davidlohr Bueso <dave@...olabs.net>,
        Josh Triplett <josh@...htriplett.org>,
        Lai Jiangshan <jiangshanlai@...il.com>,
        Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
        rcu <rcu@...r.kernel.org>, Steven Rostedt <rostedt@...dmis.org>,
        "Uladzislau Rezki (Sony)" <urezki@...il.com>
Subject: Re: [PATCH v2 rcu-dev 1/3] rcuperf: Add ability to increase object
 allocation size

On Tue, Mar 17, 2020 at 07:37:47PM -0400, joel@...lfernandes.org wrote:
> 
> 
> On March 17, 2020 6:48:20 PM EDT, "Paul E. McKenney" <paulmck@...nel.org> wrote:
> >On Tue, Mar 17, 2020 at 06:30:51PM -0400, Joel Fernandes wrote:
> >> On Tue, Mar 17, 2020 at 5:45 PM Paul E. McKenney <paulmck@...nel.org>
> >wrote:
> >> >
> >> > On Tue, Mar 17, 2020 at 02:08:22PM -0700, Paul E. McKenney wrote:
> >> > > On Mon, Mar 16, 2020 at 12:32:26PM -0400, Joel Fernandes (Google)
> >wrote:
> >> > > > This allows us to increase memory pressure dynamically using a
> >new
> >> > > > rcuperf boot command line parameter called 'rcumult'.
> >> > > >
> >> > > > Signed-off-by: Joel Fernandes (Google) <joel@...lfernandes.org>
> >> > >
> >> > > Applied for testing and review, thank you!
> >> >
> >> > But testing did not go far:
> >> >
> >> > kernel/rcu/tree.c: In function ‘kfree_rcu_shrink_count’:
> >> > kernel/rcu/tree.c:3120:16: warning: unused variable ‘flags’
> >[-Wunused-variable]
> >> >   unsigned long flags, count = 0;
> >> 
> >> I fixed the warning already but did not resend since it was just the
> >> one unused variable warning. The patches are otherwise good to apply.
> >> Sorry, and I can resend it soon if you are not reapplying right now.
> >
> >So remove "flags, " and all is well?
> 
> Yes, that's right. I dropped the lock but forgot to remove it.

Done, thank you!

							Thanx, Paul

> >If so, I can just as easily fix that as take a new series.  But next
> >time, please give a fella a warning.  ;-)
> 
> Will do, my bad. Thank you ;-)
> 
> - Joel
> 
> >
> >							Thanx, Paul
> 
> -- 
> Sent from my Android device with K-9 Mail. Please excuse my brevity.