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From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
To: Thomas Gleixner <tglx@linutronix.de>
Cc: "Paul E. McKenney" <paulmck@kernel.org>,
	LKML <linux-kernel@vger.kernel.org>,
	Marco Elver <elver@google.com>,
	kasan-dev <kasan-dev@googlegroups.com>,
	Peter Zijlstra <peterz@infradead.org>,
	Anna-Maria Behnsen <anna-maria@linutronix.de>
Subject: Re: timers: Move clearing of base::timer_running under base::lock
Date: Fri, 11 Dec 2020 16:04:25 +0100	[thread overview]
Message-ID: <20201211150425.pjpydbmo7k7j6vtv@linutronix.de> (raw)
In-Reply-To: <87sg8ch0k4.fsf@nanos.tec.linutronix.de>

On 2020-12-11 15:36:27 [+0100], Thomas Gleixner wrote:
> So the change at hand does not make things worse, right?

Correct. This *ping*-*pong* was there before this patch because
->running_timer is always cleared after the callback finishes.

I was just curious why out of a sudden there are *that* many users of
the corner case. 

> Thanks,
> 
>         tglx

Sebastian

  reply	other threads:[~2020-12-11 15:46 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-12-06 21:40 Thomas Gleixner
2020-12-07  1:10 ` Frederic Weisbecker
2020-12-07 12:25   ` Peter Zijlstra
2020-12-07 12:49     ` Frederic Weisbecker
2020-12-07 13:07 ` Sebastian Andrzej Siewior
2020-12-07 14:29   ` Thomas Gleixner
2020-12-07 15:25     ` Sebastian Andrzej Siewior
2020-12-07 16:06       ` Paul E. McKenney
2020-12-08  8:50         ` Sebastian Andrzej Siewior
2020-12-08 15:04           ` Paul E. McKenney
2020-12-11 14:36           ` Thomas Gleixner
2020-12-11 15:04             ` Sebastian Andrzej Siewior [this message]
2021-07-27 19:00 ` [tip: timers/urgent] timers: Move clearing of base::timer_running under base:: Lock tip-bot2 for Thomas Gleixner

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