Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752885AbaBJQTo (ORCPT ); Mon, 10 Feb 2014 11:19:44 -0500 Received: from mail-we0-f181.google.com ([74.125.82.181]:65049 "EHLO mail-we0-f181.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752157AbaBJQTi (ORCPT ); Mon, 10 Feb 2014 11:19:38 -0500 Date: Mon, 10 Feb 2014 17:19:34 +0100 From: Frederic Weisbecker To: Paul Gortmaker Cc: linux-kernel@vger.kernel.org, "Paul E. McKenney" Subject: Re: [PATCH v2] nohz: ensure users are aware boot CPU is not NO_HZ_FULL Message-ID: <20140210161933.GB21060@localhost.localdomain> References: <52F3D583.9070208@windriver.com> <1391711781-7466-1-git-send-email-paul.gortmaker@windriver.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1391711781-7466-1-git-send-email-paul.gortmaker@windriver.com> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Feb 06, 2014 at 01:36:21PM -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" Paul, I guess I can keep your ack on this 2nd version? > Signed-off-by: Paul Gortmaker Applied, thanks a lot! > --- > > v2: use "CPU 0" instead of "boot CPU". > > kernel/time/Kconfig | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/kernel/time/Kconfig b/kernel/time/Kconfig > index 3ce6e8c5f3fc..f448513a45ed 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 CPUs by default (except CPU 0)" > 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/ -- 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/