Subject: Re: question on resume()
From: Nigel Cunningham <nigel@nigel.suspend2.net>
Reply-To: nigel@nigel.suspend2.net
To: Oliver Neukum <oneukum@suse.de>
Cc: linux-kernel@vger.kernel.org
In-Reply-To: <200701291206.39637.oneukum@suse.de>
References: <200701291206.39637.oneukum@suse.de>
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Date: Mon, 29 Jan 2007 22:24:55 +1100
Message-Id: <1170069896.3538.26.camel@nigel.suspend2.net>
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Hi.

On Mon, 2007-01-29 at 12:06 +0100, Oliver Neukum wrote:
> Hi,
> 
> may a driver call wake_up() while doing resume() ?

I assume you mean waking a userspace process from drivers_resume(). If
so, the answer is no - processes will still be frozen at the point. In
the case of Suspend2, the LRU pages will still not have been read
either, so Suspend2 users would hate you for making hibernation crash
and burn :)

Regards,

Nigel

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