Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932247AbXAaIkZ (ORCPT ); Wed, 31 Jan 2007 03:40:25 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932257AbXAaIkZ (ORCPT ); Wed, 31 Jan 2007 03:40:25 -0500 Received: from mo-p00-ob.rzone.de ([81.169.146.160]:14814 "EHLO mo-p00-ob.rzone.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932247AbXAaIkY (ORCPT ); Wed, 31 Jan 2007 03:40:24 -0500 Date: Wed, 31 Jan 2007 09:40:14 +0100 (MET) From: Oliver Neukum To: "Rafael J. Wysocki" Subject: Re: question on resume() User-Agent: KMail/1.9.1 Cc: linux-kernel@vger.kernel.org, nigel@nigel.suspend2.net, pm list References: <200701291206.39637.oneukum@suse.de> <200701302332.26063.rjw@sisk.pl> <200701310933.29443.rjw@sisk.pl> In-Reply-To: <200701310933.29443.rjw@sisk.pl> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-15" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200701310940.26040.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: 844 Lines: 20 Am Mittwoch, 31. Januar 2007 09:33 schrieb Rafael J. Wysocki: > On Tuesday, 30 January 2007 23:32, Rafael J. Wysocki wrote: > > Generally, you are safe if your driver only calls wake_up() from a process > > context, but not from .resume() or .suspend() routines (or from an > > unfreezeable kernel thread). > > Ah, sorry, I've just realized I was wrong. Processes in TASK_UNINTERRUPTIBLE > cannot be frozen! So, the above only applies to wake_up_interruptible(). So the kernel will wait for tasks in TASK_UNINTERRUPTIBLE to finish IO before it calls suspend()? I am confused. 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/