Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751225AbXA2LfE (ORCPT ); Mon, 29 Jan 2007 06:35:04 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751229AbXA2LfD (ORCPT ); Mon, 29 Jan 2007 06:35:03 -0500 Received: from mo-p00-ob.rzone.de ([81.169.146.161]:52292 "EHLO mo-p00-ob.rzone.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751225AbXA2LfB (ORCPT ); Mon, 29 Jan 2007 06:35:01 -0500 Date: Mon, 29 Jan 2007 12:34:58 +0100 (MET) From: Oliver Neukum To: nigel@nigel.suspend2.net Subject: Re: question on resume() User-Agent: KMail/1.9.1 Cc: linux-kernel@vger.kernel.org References: <200701291206.39637.oneukum@suse.de> <1170069896.3538.26.camel@nigel.suspend2.net> In-Reply-To: <1170069896.3538.26.camel@nigel.suspend2.net> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200701291234.59706.oliver@neukum.name> X-RZG-AUTH: kN+qSWxTQH+Xqix8Cni7tCsVYhPCm1GP Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 842 Lines: 24 Am Montag, 29. Januar 2007 12:24 schrieb Nigel Cunningham: > 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 :) If so, how do I notify tasks presumably about to be thawed that their IO failed? Regards Oliver - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/