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

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Message-Id: <200707041303.00016.oliver@neukum.org>
Date:	Wed, 4 Jul 2007 13:02:58 +0200
From:	Oliver Neukum <oliver@...kum.org>
To:	Paul Mackerras <paulus@...ba.org>
Cc:	linux-pm@...ts.linux-foundation.org, linux-kernel@...r.kernel.org,
	Matthew Garrett <mjg59@...f.ucam.org>
Subject: Re: [linux-pm] Re: [PATCH] Remove process freezer from suspend to RAM pathway

Am Mittwoch, 4. Juli 2007 schrieb Paul Mackerras:
> Oliver Neukum writes:
> 
> > They can't. Device specific protocols are known to the drivers only.
> > The fact remains, remove the freezer and you need to go through
> > all drivers.
> 
> The freezer does not actually mean that you don't have to get the
> drivers right, because kernel threads can issue I/O requests.

Kernel threads do not issue requests for the hell of it. And yes,
kernel threads must be aware of suspension. Threads are few,
drivers many.

	Oliver
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