linux-kernel - Re: [PATCH] Remove process freezer from suspend to RAM pathway

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Message-Id: <200707090847.43378.oliver@neukum.org>
Date:	Mon, 9 Jul 2007 08:47:42 +0200
From:	Oliver Neukum <oliver@...kum.org>
To:	Benjamin Herrenschmidt <benh@...nel.crashing.org>
Cc:	Alan Stern <stern@...land.harvard.edu>,
	Kyle Moffett <mrmacman_g4@....com>,
	Nigel Cunningham <nigel@...el.suspend2.net>,
	Pavel Machek <pavel@....cz>, "Rafael J. Wysocki" <rjw@...k.pl>,
	Matthew Garrett <mjg59@...f.ucam.org>,
	linux-kernel@...r.kernel.org, linux-pm@...ts.linux-foundation.org
Subject: Re: [PATCH] Remove process freezer from suspend to RAM pathway

Am Sonntag, 8. Juli 2007 schrieb Benjamin Herrenschmidt:
> > But I'm not sure it's a good idea in the long run.  Think of a printer 
> > daemon, for example.  It shouldn't have to experience unexpected I/O 
> > problems merely because someone has decided to put the system to sleep.
> 
> Why not ? Printer is offline when machine is asleep... trying to print

Not necessarily. The machine must survive going to sleep while you are
printing. Any other error return than -ERESTARTSYS is not an option.
We can't simply change the ABI.

	Regards
		Oliver

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