linux-kernel - Re: [PATCH 1/8] PM: Opportunistic suspend support.

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Date:	Thu, 27 May 2010 10:17:14 +0200
From:	Bernd Petrovitsch <bernd@...rovitsch.priv.at>
To:	James Bottomley <James.Bottomley@...e.de>
Cc:	Thomas Gleixner <tglx@...utronix.de>,
	Peter Zijlstra <peterz@...radead.org>,
	Pavel Machek <pavel@....cz>,
	Pekka Enberg <penberg@...helsinki.fi>,
	Arve Hj?nnev?g <arve@...roid.com>,
	Florian Mickler <florian@...kler.org>,
	"Rafael J. Wysocki" <rjw@...k.pl>,
	Alan Stern <stern@...land.harvard.edu>,
	Dmitry Torokhov <dmitry.torokhov@...il.com>,
	Linux-pm mailing list <linux-pm@...ts.linux-foundation.org>,
	Kernel development list <linux-kernel@...r.kernel.org>,
	Len Brown <len.brown@...el.com>,
	Randy Dunlap <rdunlap@...otime.net>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Andi Kleen <ak@...ux.intel.com>,
	Cornelia Huck <cornelia.huck@...ibm.com>,
	Tejun Heo <tj@...nel.org>,
	Jesse Barnes <jbarnes@...tuousgeek.org>,
	Nigel Cunningham <nigel@...onice.net>,
	Ming Lei <tom.leiming@...il.com>,
	Wu Fengguang <fengguang.wu@...el.com>,
	Maxim Levitsky <maximlevitsky@...il.com>,
	linux-doc@...r.kernel.org, Matthew Garrett <mjg59@...f.ucam.org>,
	Greg KH <gregkh@...e.de>, tytso@....edu
Subject: Re: [PATCH 1/8] PM: Opportunistic suspend support.

On Mit, 2010-05-26 at 13:23 -0500, James Bottomley wrote:
> On Wed, 2010-05-26 at 19:51 +0200, Thomas Gleixner wrote:
[...]
> > Darn, _we_ have to deal with that forever as it sets a crappy user
> > space ABI in stone.
> 
> I really don't see how it is ... the ABI comes with a switch that allows
> it to be disabled, so only platforms wishing to use it have to support
> it.  Even on those platforms that do support it, we can translate most

You completely missed the point: The crappy user interface - and
interferences with pother subsystems - must be maintained for ages - and
that is independent if one uses it or not. Even worse if it's not widely
used.

> of it into pm QoS stuff and if one day someone solves the rogue app
> problem, we can migrate over.

If it's so important for Android and no one else, Android can carry it
out of tree.

	Bernd
-- 
Bernd Petrovitsch                  Email : bernd@...rovitsch.priv.at
                     LUGA : http://www.luga.at

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