From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752160Ab3GHP6I (ORCPT ); Mon, 8 Jul 2013 11:58:08 -0400 Received: from metis.ext.pengutronix.de ([92.198.50.35]:42219 "EHLO metis.ext.pengutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751905Ab3GHP6G (ORCPT ); Mon, 8 Jul 2013 11:58:06 -0400 Date: Mon, 8 Jul 2013 17:57:47 +0200 From: Uwe =?iso-8859-1?Q?Kleine-K=F6nig?= To: Viresh Kumar Cc: tj@kernel.org, davem@davemloft.net, airlied@redhat.com, axboe@kernel.dk, tglx@linutronix.de, peterz@infradead.org, mingo@redhat.com, rostedt@goodmis.org, linux-rt-users@vger.kernel.org, linux-kernel@vger.kernel.org, robin.randhawa@arm.com, Steve.Bannister@arm.com, Livi@jasper.es Subject: Re: [PATCH V5 0/5] Queue work on power efficient wq Message-ID: <20130708155747.GG29556@pengutronix.de> References: <20130708153716.GF29556@pengutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) X-SA-Exim-Connect-IP: 2001:6f8:1178:2:21e:67ff:fe11:9c5c X-SA-Exim-Mail-From: ukl@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-kernel@vger.kernel.org Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Jul 08, 2013 at 09:17:01PM +0530, Viresh Kumar wrote: > On 8 July 2013 21:07, Uwe Kleine-König wrote: > > This patch set hit my tree now. I wonder if it makes sense to make > > WQ_POWER_EFFICIENT_DEFAULT depend on SMP. (Oh wait, big.LITTLE isn't > > SMP, so probably there is a better symbol to depend on?) > > Well, big LITTLE still runs an SMP kernel :) and so has this flag set. The 'S' is justified because cpu0 and cpu1 are of the same type? Are there b.L systems that have only one big and one LITTLE cpu? Do these use SMP, too? > You can make it dependent on that if required. Well, it's not required. It's just that the corresponding question in make oldconfig isn't really an enrichment for a kernel targeting an Cortex M3 :-) Uwe -- Pengutronix e.K. | Uwe Kleine-König | Industrial Linux Solutions | http://www.pengutronix.de/ |