linux-kernel - Re: swsusp status report

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Message-Id: <200607252139.10356.rjw@sisk.pl>
Date:	Tue, 25 Jul 2006 21:39:10 +0200
From:	"Rafael J. Wysocki" <rjw@...k.pl>
To:	Dave Jones <davej@...hat.com>
Cc:	LKML <linux-kernel@...r.kernel.org>, Linux PM <linux-pm@...l.org>,
	Pavel Machek <pavel@....cz>
Subject: Re: swsusp status report

On Tuesday 25 July 2006 17:11, Dave Jones wrote:
> On Tue, Jul 25, 2006 at 01:25:14PM +0200, Rafael J. Wysocki wrote:
> 
>  > V. Freeing memory
>  > 
>  > Step (3) of the suspend procedure is completed by calling the same
>  > functions that are normally used by kswapd, but in a slightly different way.
>  > The part of swsusp responsible for that is referred to as 'the memory
>  > shrinker' and it may sometimes be called by the suspend-to-RAM code as well
> 
> This isn't actually necessary though is it ?
> (Ie, it's a bug that needs fixing?)

Well, that depends on what FREE_PAGE_NUMBER, as defined in
kernel/power/main.c, is for.  Someone probably knows.
[I'm tempted to remove it, though. ;-) ]

> Good write-up btw, it may even be a nice addition to Documentation/power/  ?

I'm going to update the existing docs soon, so it probably won't be needed.
Still I think we can make it available from suspend.sf.net.

Rafael
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