linux-kernel - Re: [PATCH V5 2/2] tracing, perf : add cpu hotplug trace events

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Message-ID: <1298582255.5226.843.camel@laptop>
Date:	Thu, 24 Feb 2011 22:17:35 +0100
From:	Peter Zijlstra <peterz@...radead.org>
To:	Thomas Gleixner <tglx@...utronix.de>
Cc:	Alan Cox <alan@...rguk.ukuu.org.uk>,
	Nicolas Pitre <nicolas.pitre@...aro.org>,
	Vincent Guittot <vincent.guittot@...aro.org>,
	lkml <linux-kernel@...r.kernel.org>,
	linux-hotplug@...r.kernel.org,
	Frederic Weisbecker <fweisbec@...il.com>,
	Steven Rostedt <rostedt@...dmis.org>, amit.kucheria@...aro.org,
	Rusty Russell <rusty@...tcorp.com.au>,
	Ingo Molnar <mingo@...e.hu>
Subject: Re: [PATCH V5 2/2] tracing, perf : add cpu hotplug trace events

On Thu, 2011-02-24 at 22:12 +0100, Thomas Gleixner wrote:

> If you take down the whole SoC, then it's full S2RAM or some
> equivilant thing. That's a different story and propably requires the
> whole hotplug muck.

Didn't we, during the whole wakelock trainwreck, that s2ram could be
done from idle as well (for hardware where the whole opportunistic
suspend was sensible to begin with)?



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