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

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Message-Id: <1208126822.6958.63.camel@pasglop>
Date:	Mon, 14 Apr 2008 08:47:02 +1000
From:	Benjamin Herrenschmidt <benh@...nel.crashing.org>
To:	"Rafael J. Wysocki" <rjw@...k.pl>
Cc:	Greg KH <greg@...ah.com>,
	pm list <linux-pm@...ts.linux-foundation.org>,
	ACPI Devel Maling List <linux-acpi@...r.kernel.org>,
	Alan Stern <stern@...land.harvard.edu>,
	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>,
	Nigel Cunningham <ncunningham@...a.org.au>,
	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)


> Well, I'm not sure and I'm not going to introduce the change right now, after
> the paches have been included in -mm.
> 
> That would require quite some changes in the core code that I'd prefer to
> avoid for now.  We can do something like this in a separate patch series after
> the present one settles down a bit.

I disagree.

Doing it later would introduce yet another major semantic change.

I think we should get it right now. There's no hurry in pushing things
especially if they aren't quite right.

The ability for prepare() callbacks to sync with userland,
request_firmware, etc... is an important feature that's been needed for
some time imho.

Ben.


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