Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755400AbaA1RLI (ORCPT ); Tue, 28 Jan 2014 12:11:08 -0500 Received: from mail1.windriver.com ([147.11.146.13]:34331 "EHLO mail1.windriver.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755143AbaA1RLF (ORCPT ); Tue, 28 Jan 2014 12:11:05 -0500 From: Paul Gortmaker To: CC: Paul Gortmaker , Frederic Weisbecker , "Paul E. McKenney" Subject: [PATCH] nohz: ensure users are aware boot CPU is not NO_HZ_FULL Date: Tue, 28 Jan 2014 12:10:49 -0500 Message-ID: <1390929049-17758-1-git-send-email-paul.gortmaker@windriver.com> X-Mailer: git-send-email 1.8.5.2 MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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 --- 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/