Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752255AbaBNMNM (ORCPT ); Fri, 14 Feb 2014 07:13:12 -0500 Received: from mail-wg0-f51.google.com ([74.125.82.51]:63177 "EHLO mail-wg0-f51.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751740AbaBNMMu (ORCPT ); Fri, 14 Feb 2014 07:12:50 -0500 From: Frederic Weisbecker To: LKML Cc: Paul Gortmaker , Ingo Molnar , "Paul E. McKenney" , Peter Zijlstra , Steven Rostedt , Thomas Gleixner , Frederic Weisbecker Subject: [PATCH 2/2] nohz: ensure users are aware boot CPU is not NO_HZ_FULL Date: Fri, 14 Feb 2014 13:12:40 +0100 Message-Id: <1392379960-4758-3-git-send-email-fweisbec@gmail.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1392379960-4758-1-git-send-email-fweisbec@gmail.com> References: <1392379960-4758-1-git-send-email-fweisbec@gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Paul Gortmaker 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. Acked-by: Paul E. McKenney Signed-off-by: Paul Gortmaker Cc: Ingo Molnar Cc: Paul Gortmaker Cc: Paul E. McKenney Cc: Peter Zijlstra Cc: Steven Rostedt Cc: Thomas Gleixner Link: http://lkml.kernel.org/r/1391711781-7466-1-git-send-email-paul.gortmaker@windriver.com Signed-off-by: Frederic Weisbecker --- kernel/time/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/time/Kconfig b/kernel/time/Kconfig index 3ce6e8c..f448513 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 -- 1.8.3.1 -- 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/