Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756567AbYHMSiL (ORCPT ); Wed, 13 Aug 2008 14:38:11 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751748AbYHMSh5 (ORCPT ); Wed, 13 Aug 2008 14:37:57 -0400 Received: from ogre.sisk.pl ([217.79.144.158]:46920 "EHLO ogre.sisk.pl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751447AbYHMSh4 (ORCPT ); Wed, 13 Aug 2008 14:37:56 -0400 From: "Rafael J. Wysocki" To: Matt Helsley Subject: Re: [ProbableSpam]Re: [PATCH 2/5] Container Freezer: Make refrigerator always available Date: Wed, 13 Aug 2008 16:31:48 +0200 User-Agent: KMail/1.9.6 (enterprise 20070904.708012) Cc: Andrew Morton , Paul Menage , Li Zefan , Linux-Kernel , Linux Containers , linux-pm@lists.linux-foundation.org, Cedric Le Goater , "Serge E. Hallyn" References: <20080811235323.872291138@us.ibm.com> <200808122249.27553.rjw@sisk.pl> <1218589300.19008.135.camel@localhost.localdomain> In-Reply-To: <1218589300.19008.135.camel@localhost.localdomain> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-15" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200808131631.49889.rjw@sisk.pl> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2578 Lines: 63 On Wednesday, 13 of August 2008, Matt Helsley wrote: > > On Tue, 2008-08-12 at 22:49 +0200, Rafael J. Wysocki wrote: > > On Tuesday, 12 of August 2008, Matt Helsley wrote: > > > Now that the TIF_FREEZE flag is available in all architectures, > > > extract the refrigerator() and freeze_task() from kernel/power/process.c > > > and make it available to all. > > > > > > The refrigerator() can now be used in a control group subsystem > > > implementing a control group freezer. > > > > > > Signed-off-by: Cedric Le Goater > > > Signed-off-by: Matt Helsley > > > Acked-by: Serge E. Hallyn > > > Tested-by: Matt Helsley > > > > Your Signed-off-by implies your Tested-by (at least it should ;-)). > > I wasn't sure that was always true so I added it just in case. I'll take > it out of any future postings. > > > > --- > > [--snip--] > > > Index: linux-2.6.27-rc1-mm1/kernel/power/Kconfig > > > =================================================================== > > > --- linux-2.6.27-rc1-mm1.orig/kernel/power/Kconfig > > > +++ linux-2.6.27-rc1-mm1/kernel/power/Kconfig > > > @@ -85,6 +85,9 @@ config PM_SLEEP > > > depends on SUSPEND || HIBERNATION || XEN_SAVE_RESTORE > > > default y > > > > > > +config FREEZER > > > + def_bool PM_SLEEP > > > + > > > > I'd still prefer this to go into a Kconfig in the parent directory (ie. where > > freezer.c and the Makefile building it are located). Otherwise it's guaranteed > > to confuse someone. > > I'm thinking of making a patch moving the cgroups config variables into > a kernel/Kconfig.cgroups file. Would moving config FREEZER to such a > file be satisfactory? Paul, what do you think? Well, in fact FREEZER is not directly dependent on cgroups, as it can also depend on PM_SLEEP, even if cgroups are not used at all. I would just add 'Kconfig.freezer' to 'kernel', put 'config FREEZER' in there and make it depend on whatever needs it. Of course, 'source "kernel/Kconfig.freezer"' would have to be added to top-level Kconfigs for all architectures, but please note that only a few architectures include 'kernel/power/Kconfig', so you'd have to change the top-level Kconfigs anyway. Alternatively, you can just add 'config FREEZER' directly to the top-level Kconfigs. Thanks, Rafael -- 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/