Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756006AbaA2AGh (ORCPT ); Tue, 28 Jan 2014 19:06:37 -0500 Received: from e33.co.us.ibm.com ([32.97.110.151]:57601 "EHLO e33.co.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755606AbaA2AGg (ORCPT ); Tue, 28 Jan 2014 19:06:36 -0500 Date: Tue, 28 Jan 2014 16:06:30 -0800 From: "Paul E. McKenney" To: Paul Gortmaker Cc: linux-kernel@vger.kernel.org, Frederic Weisbecker Subject: Re: [PATCH] nohz: ensure users are aware boot CPU is not NO_HZ_FULL Message-ID: <20140129000630.GT9012@linux.vnet.ibm.com> Reply-To: paulmck@linux.vnet.ibm.com References: <1390929049-17758-1-git-send-email-paul.gortmaker@windriver.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1390929049-17758-1-git-send-email-paul.gortmaker@windriver.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-TM-AS-MML: disable X-Content-Scanned: Fidelis XPS MAILER x-cbid: 14012900-0928-0000-0000-000005CB83B2 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Jan 28, 2014 at 12:10:49PM -0500, Paul Gortmaker wrote: > This bit of information is in the Kconfig help text: > > Note the boot CPU will still be kept outside the range to > handle the timekeeping duty. > > However neither the variable NO_HZ_FULL_ALL, or the prompt > convey this important detail, so lets add it to the prompt > to make it more explicitly obvious to the average user. > > Cc: Frederic Weisbecker > Cc: "Paul E. McKenney" > Signed-off-by: Paul Gortmaker Acked-by: Paul E. McKenney > --- > kernel/time/Kconfig | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/kernel/time/Kconfig b/kernel/time/Kconfig > index 3ce6e8c5f3fc..76a1fbef1fd8 100644 > --- a/kernel/time/Kconfig > +++ b/kernel/time/Kconfig > @@ -124,7 +124,7 @@ config NO_HZ_FULL > endchoice > > config NO_HZ_FULL_ALL > - bool "Full dynticks system on all CPUs by default" > + bool "Full dynticks system on all (but boot) CPUs by default" > depends on NO_HZ_FULL > help > If the user doesn't pass the nohz_full boot option to > -- > 1.8.5.2 > -- 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/