From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756125AbbGQWXt (ORCPT ); Fri, 17 Jul 2015 18:23:49 -0400 Received: from e36.co.us.ibm.com ([32.97.110.154]:42798 "EHLO e36.co.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754529AbbGQWU1 (ORCPT ); Fri, 17 Jul 2015 18:20:27 -0400 X-Helo: d03dlp01.boulder.ibm.com X-MailFrom: paulmck@linux.vnet.ibm.com X-RcptTo: linux-kernel@vger.kernel.org From: "Paul E. McKenney" To: linux-kernel@vger.kernel.org Cc: mingo@kernel.org, laijs@cn.fujitsu.com, dipankar@in.ibm.com, akpm@linux-foundation.org, mathieu.desnoyers@efficios.com, josh@joshtriplett.org, tglx@linutronix.de, peterz@infradead.org, rostedt@goodmis.org, dhowells@redhat.com, edumazet@google.com, dvhart@linux.intel.com, fweisbec@gmail.com, oleg@redhat.com, bobby.prani@gmail.com, "Paul E. McKenney" , Sebastian Andrzej Siewior Subject: [PATCH tip/core/rcu 05/16] rcu: Hide RCU_NOCB_CPU behind RCU_EXPERT Date: Fri, 17 Jul 2015 15:20:05 -0700 Message-Id: <1437171616-13832-5-git-send-email-paulmck@linux.vnet.ibm.com> X-Mailer: git-send-email 1.8.1.5 In-Reply-To: <1437171616-13832-1-git-send-email-paulmck@linux.vnet.ibm.com> References: <20150717221949.GA12304@linux.vnet.ibm.com> <1437171616-13832-1-git-send-email-paulmck@linux.vnet.ibm.com> X-TM-AS-MML: disable X-Content-Scanned: Fidelis XPS MAILER x-cbid: 15071722-0021-0000-0000-00000E80BDCD Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: "Paul E. McKenney" This commit prevents Kconfig from asking the user about RCU_NOCB_CPU unless the user really wants to be asked. Reported-by: Ingo Molnar Signed-off-by: Paul E. McKenney Cc: Steven Rostedt Cc: Sebastian Andrzej Siewior Cc: Thomas Gleixner --- init/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/init/Kconfig b/init/Kconfig index fdeff4ab5995..ba1e6eaf4c36 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -698,6 +698,7 @@ config RCU_BOOST_DELAY config RCU_NOCB_CPU bool "Offload RCU callback processing from boot-selected CPUs" depends on TREE_RCU || PREEMPT_RCU + depends on RCU_EXPERT || NO_HZ_FULL default n help Use this option to reduce OS jitter for aggressive HPC or -- 1.8.1.5