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

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Date:	Fri, 27 Apr 2007 11:41:55 +0200
From:	Johannes Berg <johannes@...solutions.net>
To:	"Rafael J. Wysocki" <rjw@...k.pl>
Cc:	Pavel Machek <pavel@....cz>,
	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>,
	linux-pm <linux-pm@...ts.linux-foundation.org>
Subject: Re: suspend2 merge (was Re: [Suspend2-devel] Re: CFS and suspend2:
	hang in atomic copy)

On Thu, 2007-04-26 at 21:02 +0200, Rafael J. Wysocki wrote:

> Yes.  That's because we want to be able to repeat creating the image
> without closing the fd in some situations.

Oh yeah, I just checked and it's not in fact necessary. I'm just
confused.

> Still, we could use a global var 'platform_hibernation' or something like this,
> I think.  Then, we can do
> 
> #define platform_hibernation	0
> 
> on the architectures that don't need it and make ACPI use it instead of this
> "dynamic linking".

No, because acpi doesn't know at build time whether it can actually do
S4 or not.

johannes

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