linux-kernel - Re: [PATCH 0/6] PM / sleep: Support for quiescing timers during suspend-to-idle

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Message-ID: <2523826.SKfzND7v9h@vostro.rjw.lan>
Date:	Fri, 13 Feb 2015 15:29:03 +0100
From:	"Rafael J. Wysocki" <rjw@...ysocki.net>
To:	Peter Zijlstra <peterz@...radead.org>
Cc:	Thomas Gleixner <tglx@...utronix.de>,
	Alan Cox <alan@...ux.intel.com>,
	"Li, Aubrey" <aubrey.li@...ux.intel.com>,
	LKML <linux-kernel@...r.kernel.org>,
	Linux PM list <linux-pm@...r.kernel.org>,
	ACPI Devel Maling List <linux-acpi@...r.kernel.org>,
	Kristen Carlson Accardi <kristen@...ux.intel.com>,
	John Stultz <john.stultz@...aro.org>,
	Len Brown <len.brown@...el.com>
Subject: Re: [PATCH 0/6] PM / sleep: Support for quiescing timers during suspend-to-idle

On Friday, February 13, 2015 09:13:42 AM Peter Zijlstra wrote:
> On Wed, Feb 11, 2015 at 05:00:15AM +0100, Rafael J. Wysocki wrote:
> > Hi,
> > 
> > This series adds support for quiescing timers during the last state of
> > suspend-to-idle transitions.
> > 
> > Patches [1-4/6] together are functionally equivalent to the combo RFC patch
> > I sent last time (http://marc.info/?l=linux-kernel&m=142344909201464&w=4).
> > 
> > Patches [5-6/6] add ->enter_freeze callback implementations to intel_idle
> > and the ACPI cpuidle driver.
> > 
> > [1/6] - Rework the suspend-to-idle "mechanics" in preparation for the subsequent
> >         changes.  The existing functionality should not change after this.
> > [2/6] - Modify update_fast_timekeeper() to take struct tk_read_base pointers as
> >         arguments.
> > [3/6] - Make it safe to use the fast timekeeper while suspended.
> > [4/6] - Support for quiescing timers during suspend-to-idle (core part).
> > [5/6] - ->enter_freeze callback for intel_idle.
> > [6/6] - ->enter_freeze callback for ACPI cpuidle.
> > 
> > This works as expected on everything I have in my office and can readily test.
> > 
> > The patches should apply without any problems on top of the current Linus' tree.
> 
> Thanks for the updates, looks good to me.
> 
> Acked-by: Peter Zijlstra (Intel) <peterz@...radead.org>

Thanks!

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