linux-kernel - Re: [PATCH 1/3] PM: Introduce new top level suspend and hibernation callbacks (rev. 8)

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Message-Id: <1208130548.6958.74.camel@pasglop>
Date:	Mon, 14 Apr 2008 09:49:08 +1000
From:	Benjamin Herrenschmidt <benh@...nel.crashing.org>
To:	"Rafael J. Wysocki" <rjw@...k.pl>
Cc:	Alan Stern <stern@...land.harvard.edu>,
	Nigel Cunningham <ncunningham@...a.org.au>,
	Greg KH <greg@...ah.com>,
	pm list <linux-pm@...ts.linux-foundation.org>,
	ACPI Devel Maling List <linux-acpi@...r.kernel.org>,
	Len Brown <lenb@...nel.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Alexey Starikovskiy <astarikovskiy@...e.de>,
	David Brownell <david-b@...bell.net>,
	Pavel Machek <pavel@....cz>, Oliver Neukum <oliver@...kum.org>,
	Jesse Barnes <jbarnes@...tuousgeek.org>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH 1/3] PM: Introduce new top level suspend and
	hibernation callbacks (rev. 8)


On Mon, 2008-04-14 at 01:33 +0200, Rafael J. Wysocki wrote:
> 
> Plus in my opinion, while with ->prepare() after the freezer it's
> possible
> to write ->prepare() and ->suspend() that will work just fine when we
> remove
> the freezer, with ->prepare() before the freezer it would be hard to
> do that,
> unless ->prepare() was trivial.

And removing a good half of the usage scenario where prepare is useful..

Ben.


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