Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758685AbYHATIX (ORCPT ); Fri, 1 Aug 2008 15:08:23 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755734AbYHATIN (ORCPT ); Fri, 1 Aug 2008 15:08:13 -0400 Received: from e31.co.us.ibm.com ([32.97.110.149]:55240 "EHLO e31.co.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752345AbYHATIM (ORCPT ); Fri, 1 Aug 2008 15:08:12 -0400 Subject: Re: [PATCH 2/6] Container Freezer: Make refrigerator always available From: Matt Helsley To: Thomas Petazzoni Cc: Andrew Morton , "Rafael J. Wysocki" , Paul Menage , Li Zefan , Linux-Kernel , Linux Containers , linux-pm@lists.linux-foundation.org, Cedric Le Goater , "Serge E. Hallyn" , Michael Opdenacker , linux-embedded@vger.kernel.org In-Reply-To: <20080801162712.63721e8c@surf> References: <20080801050659.924495279@us.ibm.com> <20080801050700.528446138@us.ibm.com> <20080801162712.63721e8c@surf> Content-Type: text/plain; charset=UTF-7 Organization: IBM Linux Technology Center Date: Fri, 01 Aug 2008 12:08:09 -0700 Message-Id: <1217617689.25300.213.camel@localhost.localdomain> Mime-Version: 1.0 X-Mailer: Evolution 2.12.2 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3455 Lines: 76 On Fri, 2008-08-01 at 16:27 +-0200, Thomas Petazzoni wrote: +AD4 Hi, +AD4 +AD4 Le Thu, 31 Jul 2008 22:07:01 -0700, +AD4 Matt Helsley +ADw-matthltc+AEA-us.ibm.com+AD4 a +AOk-crit : +AD4 +AD4 +AD4 --- a/kernel/Makefile +AD4 +AD4 +-+-+- b/kernel/Makefile +AD4 +AD4 +AEAAQA -5,7 +-5,7 +AEAAQA +AD4 +AD4 obj-y +AD0 sched.o fork.o exec+AF8-domain.o panic.o printk.o +AFw +AD4 +AD4 cpu.o exit.o itimer.o time.o softirq.o resource.o +AFw +AD4 +AD4 sysctl.o capability.o ptrace.o timer.o user.o +AFw +AD4 +AD4 - signal.o sys.o kmod.o workqueue.o pid.o +AFw +AD4 +AD4 +- signal.o sys.o kmod.o workqueue.o pid.o freezer.o +AFw +AD4 +AD4 I have the impression that the code in kernel/power/process.c was +AD4 compiled only if CONFIG+AF8-PM+AF8-SLEEP was set. Now that the code has been +AD4 moved to kernel/freezer.c, it is unconditionnaly compiled in every +AD4 kernel. Is that correct ? +AD4 +AD4 If so, is it possible to put this new feature under some +AD4 CONFIG+AF8-SOMETHING option, for people who care about the kernel size ? How about making it depend on a combination of CONFIG variables? Here's an RFC PATCH. Completely untested. Signed-off-by: Matt Helsley +ADw-matthltc+AEA-us.ibm.com+AD4 --- kernel/Makefile +AHw 3 +-+-- kernel/power/Kconfig +AHw 3 +-+-+- 2 files changed, 5 insertions(+-), 1 deletion(-) Index: linux-2.6.27-rc1-mm1/kernel/Makefile +AD0APQA9AD0APQA9AD0APQA9AD0APQA9AD0APQA9AD0APQA9AD0APQA9AD0APQA9AD0APQA9AD0APQA9AD0APQA9AD0APQA9AD0APQA9AD0APQA9AD0APQA9AD0APQA9AD0APQA9AD0APQA9AD0APQA9AD0APQA9AD0APQA9AD0APQA9AD0 --- linux-2.6.27-rc1-mm1.orig/kernel/Makefile +-+-+- linux-2.6.27-rc1-mm1/kernel/Makefile +AEAAQA -5,7 +-5,7 +AEAAQA obj-y +AD0 sched.o fork.o exec+AF8-domain.o panic.o printk.o +AFw cpu.o exit.o itimer.o time.o softirq.o resource.o +AFw sysctl.o capability.o ptrace.o timer.o user.o +AFw - signal.o sys.o kmod.o workqueue.o pid.o freezer.o +AFw +- signal.o sys.o kmod.o workqueue.o pid.o +AFw rcupdate.o extable.o params.o posix-timers.o +AFw kthread.o wait.o kfifo.o sys+AF8-ni.o posix-cpu-timers.o mutex.o +AFw hrtimer.o rwsem.o nsproxy.o srcu.o semaphore.o +AFw +AEAAQA -24,6 +-24,7 +AEAAQA CFLAGS+AF8-REMOVE+AF8-sched+AF8-clock.o +AD0 -pg CFLAGS+AF8-REMOVE+AF8-sched.o +AD0 -mno-spe -pg endif +-obj-+ACQ(CONFIG+AF8-FREEZER) +-+AD0 freezer.o obj-+ACQ(CONFIG+AF8-PROFILING) +-+AD0 profile.o obj-+ACQ(CONFIG+AF8-SYSCTL+AF8-SYSCALL+AF8-CHECK) +-+AD0 sysctl+AF8-check.o obj-+ACQ(CONFIG+AF8-STACKTRACE) +-+AD0 stacktrace.o Index: linux-2.6.27-rc1-mm1/kernel/power/Kconfig +AD0APQA9AD0APQA9AD0APQA9AD0APQA9AD0APQA9AD0APQA9AD0APQA9AD0APQA9AD0APQA9AD0APQA9AD0APQA9AD0APQA9AD0APQA9AD0APQA9AD0APQA9AD0APQA9AD0APQA9AD0APQA9AD0APQA9AD0APQA9AD0APQA9AD0APQA9AD0 --- linux-2.6.27-rc1-mm1.orig/kernel/power/Kconfig +-+-+- linux-2.6.27-rc1-mm1/kernel/power/Kconfig +AEAAQA -85,6 +-85,9 +AEAAQA config PM+AF8-SLEEP depends on SUSPEND +AHwAfA HIBERNATION +AHwAfA XEN+AF8-SAVE+AF8-RESTORE default y +-config FREEZER +- def+AF8-bool PM+AF8-SLEEP +AHwAfA CGROUP+AF8-FREEZER +- config SUSPEND bool +ACI-Suspend to RAM and standby+ACI depends on PM +ACYAJg ARCH+AF8-SUSPEND+AF8-POSSIBLE -- 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/