linux-kernel - Re: suspend2 merge (was Re: [Suspend2-devel] Re: CFS and suspend2: hang in atomic copy)

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Message-ID: <20070426113005.GU17387@elf.ucw.cz>
Date:	Thu, 26 Apr 2007 13:30:05 +0200
From:	Pavel Machek <pavel@....cz>
To:	Johannes Berg <johannes@...solutions.net>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Nigel Cunningham <nigel@...el.suspend2.net>,
	Nick Piggin <npiggin@...e.de>,
	suspend2-devel@...ts.suspend2.net, Mike Galbraith <efault@....de>,
	linux-kernel@...r.kernel.org, Con Kolivas <kernel@...ivas.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...e.hu>,
	Arjan van de Ven <arjan@...radead.org>
Subject: Re: suspend2 merge (was Re: [Suspend2-devel] Re: CFS and suspend2: hang in atomic copy)

Hi!

> > That's where I started: whole "suspend to disk" thing actually has _more_ 
> > to do with "shutdown" than with "suspend". 
> 
> From looking at pm_ops which I was recently working with a lot, it seems
> that it was designed by somebody who was reading the ACPI documentation
> and was otherwise pretty clueless, even at that level std tries to look
> like suspend. IMHO that is one of the first things that should be ripped
> out, no pm_ops for STD, it's a pain to work with.

That code goes back to Patrick, AFAICT. (And yes, ACPI S3 and ACPI S4
low-level enter is pretty similar).

Patches would be welcome, as would be "suspend-to-ram maintainer".
									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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