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

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Message-ID: <Pine.LNX.4.44L0.1005271724430.3239-100000@iolanthe.rowland.org>
Date:	Thu, 27 May 2010 17:26:03 -0400 (EDT)
From:	Alan Stern <stern@...land.harvard.edu>
To:	Matthew Garrett <mjg59@...f.ucam.org>
cc:	Thomas Gleixner <tglx@...utronix.de>,
	Peter Zijlstra <peterz@...radead.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Florian Mickler <florian@...kler.org>,
	<felipe.balbi@...ia.com>,
	Linux OMAP Mailing List <linux-omap@...r.kernel.org>,
	Linux PM <linux-pm@...ts.linux-foundation.org>,
	Alan Cox <alan@...rguk.ukuu.org.uk>
Subject: Re: [linux-pm] [PATCH 0/8] Suspend block api (version 8)

On Thu, 27 May 2010, Matthew Garrett wrote:

> On Thu, May 27, 2010 at 10:23:50PM +0200, Thomas Gleixner wrote:
> > On Thu, 27 May 2010, Matthew Garrett wrote:
> > > A wakeup event is defined as one that wakes the system - if a system 
> > > can't be woken by a specific event then it's impossible to lose it, 
> > > since it wasn't a wakeup event to begin with.
> > 
> > So where is the problem ?
> 
> The problem is that, right now, if a wakeup event is received between 
> the point where userspace decides to start a suspend and userspace 
> actually starts a suspend, that event may not abort the suspend.

The two of you are talking at cross purposes.  Thomas is referring to 
idle-based suspend and Matthew is talking about forced suspend.

Or at least, that's how it appears to me.  No wonder you can't agree on 
anything.

Alan Stern

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