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

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Date:	Tue, 03 Jul 2007 21:45:12 +1000
From:	Benjamin Herrenschmidt <benh@...nel.crashing.org>
To:	Oliver Neukum <oliver@...kum.org>
Cc:	Miklos Szeredi <miklos@...redi.hu>,
	linux-pm@...ts.linux-foundation.org, nigel@...el.suspend2.net,
	mjg59@...f.ucam.org, linux-kernel@...r.kernel.org
Subject: Re: [linux-pm] Re: [PATCH] Remove process freezer from suspend to
	RAM pathway

On Tue, 2007-07-03 at 13:27 +0200, Oliver Neukum wrote:
> > You are talking about hibernate, right?  Suspending (to ram) is
> > instantaneous, in that _after_ suspend no CPU is active obviously.
> 
> If that is so, why do you care? If it is really atomic, fuse has no
> chance
> to call out to its component in user space either. Removing the
> freezer
> cannot make a difference.

It's not atomic. You will get called after suspend() in drivers. The
thing is ... you just have to deal with it :-)

Ben.


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