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Subject: Re: [PATCH 1/3] power, vfs: move away from PF_KTHREAD freezing in
 favor of fs freezing
From: Oliver Neukum <oneukum@suse.com>
To: Jiri Kosina <jikos@kernel.org>
Cc: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>,
        Dave Chinner <david@fromorbit.com>, Jan Kara <jack@suse.cz>,
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Date: Sat, 31 Oct 2015 09:55:56 +0100
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On Fri, 2015-10-30 at 14:47 +0100, Jiri Kosina wrote:
> Basically the main argument why kthread freezer is not needed boils
> down to
> this: the only facility that is needed during suspend: "no persistent
> fs
> changes are allowed from now on".

Is that true? Drivers of character devices also may assume
that IO and suspend() wouldn't race (except in fairly clear exceptions)

	Regards
		Oliver