From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759877AbXGCLpx (ORCPT ); Tue, 3 Jul 2007 07:45:53 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1756013AbXGCLpq (ORCPT ); Tue, 3 Jul 2007 07:45:46 -0400 Received: from gate.crashing.org ([63.228.1.57]:55717 "EHLO gate.crashing.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755470AbXGCLpp (ORCPT ); Tue, 3 Jul 2007 07:45:45 -0400 Subject: Re: [linux-pm] Re: [PATCH] Remove process freezer from suspend to RAM pathway From: Benjamin Herrenschmidt To: Oliver Neukum Cc: Miklos Szeredi , linux-pm@lists.linux-foundation.org, nigel@nigel.suspend2.net, mjg59@srcf.ucam.org, linux-kernel@vger.kernel.org In-Reply-To: <200707031327.56577.oliver@neukum.org> References: <20070703042916.GA17240@srcf.ucam.org> <200707031307.41366.oliver@neukum.org> <200707031327.56577.oliver@neukum.org> Content-Type: text/plain Date: Tue, 03 Jul 2007 21:45:12 +1000 Message-Id: <1183463113.10386.114.camel@localhost.localdomain> Mime-Version: 1.0 X-Mailer: Evolution 2.10.1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org 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.