From: Alexandre Belloni <alexandre.belloni@free-electrons.com>
To: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: Thomas Gleixner <tglx@linutronix.de>,
Boris Brezillon <boris.brezillon@free-electrons.com>,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, linux-rt-users@vger.kernel.org,
Nicolas Ferre <nicolas.ferre@atmel.com>
Subject: Re: [PATCH 4.4-rt2] fix arm-at91-pit-remove-irq-handler-when-clock-is-unused.patch
Date: Tue, 19 Jan 2016 02:22:47 +0100 [thread overview]
Message-ID: <20160119012247.GV3367@piout.net> (raw)
In-Reply-To: <569D49FC.2050500@linutronix.de>
On 18/01/2016 at 21:24:28 +0100, Sebastian Andrzej Siewior wrote :
> >
> > My understanding is that clockevents_exchange_device() changes the state
> > from detached to shutdown and so at that point the IRQ has never been
> > requested.
>
> I see. So we get shutdown called twice while set_periodic was only
> called once. In that case I would suggest to have internal bookkeeping
> instead of relying on current core's behavior when it is time free the
> irq.
>
Ok, I can do that. What should I base my patch on?
--
Alexandre Belloni, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
next prev parent reply other threads:[~2016-01-19 1:22 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-17 2:23 Fix preempt-rt on AT91 Alexandre Belloni
2016-01-17 2:23 ` [PATCH 4.4-rt2] fix arm-at91-pit-remove-irq-handler-when-clock-is-unused.patch Alexandre Belloni
2016-01-18 17:25 ` Sebastian Andrzej Siewior
2016-01-18 18:42 ` Alexandre Belloni
2016-01-18 20:24 ` Sebastian Andrzej Siewior
2016-01-19 1:22 ` Alexandre Belloni [this message]
2016-01-20 11:07 ` Thomas Gleixner
2016-03-17 19:55 ` Alexandre Belloni
2016-01-18 17:42 ` Fix preempt-rt on AT91 Sebastian Andrzej Siewior
2016-01-18 19:23 ` Alexandre Belloni
2016-01-18 20:30 ` Sebastian Andrzej Siewior
2016-01-19 1:02 ` Alexandre Belloni
2016-03-05 11:35 ` Alexandre Belloni
2016-03-08 11:06 ` Sebastian Andrzej Siewior
2016-03-08 11:26 ` Thomas Gleixner
2016-03-08 18:39 ` Alexandre Belloni
2016-03-09 9:58 ` arm: at91: do not disable/enable clocks in a row Sebastian Andrzej Siewior
2016-03-17 18:09 ` Alexandre Belloni
2016-02-18 20:16 ` Fix preempt-rt on AT91 Jean-Denis Girard
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