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

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Message-ID: <20100527222957.7f39b5af@lxorguk.ukuu.org.uk>
Date:	Thu, 27 May 2010 22:29:57 +0100
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	"Rafael J. Wysocki" <rjw@...k.pl>
Cc:	Thomas Gleixner <tglx@...utronix.de>,
	Alan Stern <stern@...land.harvard.edu>,
	Felipe Balbi <felipe.balbi@...ia.com>,
	Arve Hjønnevåg <arve@...roid.com>,
	Peter Zijlstra <peterz@...radead.org>,
	"Paul@...p1.linux-foundation.org" <Paul@...p1.linux-foundation.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Florian Mickler <florian@...kler.org>,
	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)

> Well, what about when I want the machine to suspend _regardless_ of whether
> or not it's idle at the moment?  That actually happens quite often to me. :-)

I don't think it helps to combine them for this discussion ?

> I don't see much difference between that and ACPI S3 other than the memory
> contents are preserved in S3.  It also is complete power off state - except for
> memory refresh and wakeup sources (which also may be active in S4).

Agreed although I am pushed to think of many real world cases where it
might matter. VM's maybe?

Alan
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