linux-kernel - Re: [TuxOnIce-devel] [RFC] TuxOnIce

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Message-ID: <20090526091940.GA29867@elf.ucw.cz>
Date:	Tue, 26 May 2009 11:19:40 +0200
From:	Pavel Machek <pavel@....cz>
To:	"Rafael J. Wysocki" <rjw@...k.pl>
Cc:	Oliver Neukum <oliver@...kum.org>, nigel@...onice.net,
	linux-pm@...ts.linux-foundation.org,
	tuxonice-devel@...ts.tuxonice.net, linux-kernel@...r.kernel.org
Subject: Re: [TuxOnIce-devel] [RFC] TuxOnIce

Hi!

> > If you really have drivers that have exceptionally large memory requirements
> > (eg. you need to copy video ram), you should tell the system through struct
> > driver and do accounting at probe and removal of devices.
> 
> Or perhaps the drivers should allocate memory from a PM notifier (which is
> called before the freezing of tasks) to avoid the problem?

Yes, that's how it should work for big allocations.

For small allocations... I still believe we should free a bit of
memory for s2ram so that small allocations can be done without
problems.
									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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