Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753279Ab3DVVIh (ORCPT ); Mon, 22 Apr 2013 17:08:37 -0400 Received: from mail-wi0-f171.google.com ([209.85.212.171]:60816 "EHLO mail-wi0-f171.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751646Ab3DVVIe (ORCPT ); Mon, 22 Apr 2013 17:08:34 -0400 From: Frederic Weisbecker To: Ingo Molnar Cc: LKML , Frederic Weisbecker , Chris Metcalf , Christoph Lameter , Geoff Levand , Gilad Ben Yossef , Hakan Akkan , Kevin Hilman , Li Zhong , Oleg Nesterov , "Paul E. McKenney" , Paul Gortmaker , Peter Zijlstra , Steven Rostedt , Thomas Gleixner Subject: [PATCH 1/2] nohz: Select wide RCU nocb for full dynticks Date: Mon, 22 Apr 2013 23:08:24 +0200 Message-Id: <1366664905-21884-2-git-send-email-fweisbec@gmail.com> X-Mailer: git-send-email 1.7.5.4 In-Reply-To: <1366664905-21884-1-git-send-email-fweisbec@gmail.com> References: <1366664905-21884-1-git-send-email-fweisbec@gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1717 Lines: 50 It makes testing and implementation much easier as we know in advance that all CPUs are RCU nocbs. Also this prepares to remove the dynamic check for nohz_full= boot mask to be a subset of rcu_nocbs= Eventually this should also help removing the requirement for the boot CPU to be outside the full dynticks range. Suggested-by: Christoph Lameter Suggested-by: Paul E. McKenney Signed-off-by: Frederic Weisbecker Cc: Chris Metcalf Cc: Christoph Lameter Cc: Geoff Levand Cc: Gilad Ben Yossef Cc: Hakan Akkan Cc: Ingo Molnar Cc: Kevin Hilman Cc: Li Zhong Cc: Oleg Nesterov Cc: Paul E. McKenney Cc: Paul Gortmaker Cc: Peter Zijlstra Cc: Steven Rostedt Cc: Thomas Gleixner --- kernel/time/Kconfig | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/kernel/time/Kconfig b/kernel/time/Kconfig index f6a792a..e1ac129 100644 --- a/kernel/time/Kconfig +++ b/kernel/time/Kconfig @@ -110,6 +110,7 @@ config NO_HZ_FULL select NO_HZ_COMMON select RCU_USER_QS select RCU_NOCB_CPU + select RCU_NOCB_CPU_ALL select CONTEXT_TRACKING_FORCE select IRQ_WORK help -- 1.7.5.4 -- 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/