linux-kernel - Re: [linux-pm] [PATCH 0/8] Suspend block api (version 8)

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Message-ID: <20100527175920.GE3543@srcf.ucam.org>
Date:	Thu, 27 May 2010 18:59:20 +0100
From:	Matthew Garrett <mjg59@...f.ucam.org>
To:	Peter Zijlstra <peterz@...radead.org>
Cc:	Thomas Gleixner <tglx@...utronix.de>,
	Alan Cox <alan@...rguk.ukuu.org.uk>,
	Arve Hjønnevåg <arve@...roid.com>,
	Florian Mickler <florian@...kler.org>,
	Vitaly Wool <vitalywool@...il.com>,
	LKML <linux-kernel@...r.kernel.org>,
	Paul@...p1.linux-foundation.org, felipe.balbi@...ia.com,
	Linux OMAP Mailing List <linux-omap@...r.kernel.org>,
	Linux PM <linux-pm@...ts.linux-foundation.org>
Subject: Re: [linux-pm] [PATCH 0/8] Suspend block api (version 8)

On Thu, May 27, 2010 at 07:56:21PM +0200, Peter Zijlstra wrote:
> On Thu, 2010-05-27 at 18:52 +0100, Matthew Garrett wrote:
> 
> > If that's what you're aiming for then you don't need to block 
> > applications on hardware access because they should all already have 
> > idled themselves.
> 
> Correct, a well behaved app would have. I thought we all agreed that
> well behaved apps weren't the problem?

Ok. So the existing badly-behaved application ignores your request and 
then gets blocked. And now it no longer responds to wakeup events. So 
you penalise well-behaved applications without providing any benefits to 
badly-behaved ones.

-- 
Matthew Garrett | mjg59@...f.ucam.org
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