From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756641AbZAVHRV (ORCPT ); Thu, 22 Jan 2009 02:17:21 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753990AbZAVHRK (ORCPT ); Thu, 22 Jan 2009 02:17:10 -0500 Received: from e6.ny.us.ibm.com ([32.97.182.146]:40022 "EHLO e6.ny.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753929AbZAVHRI (ORCPT ); Thu, 22 Jan 2009 02:17:08 -0500 Date: Wed, 21 Jan 2009 23:17:05 -0800 From: "Paul E. McKenney" To: Lai Jiangshan Cc: Ingo Molnar , Linux Kernel Mailing List Subject: Re: [PATCH] rcu: remove duplicate CONFIG_RCU_CPU_STALL_DETECTOR Message-ID: <20090122071705.GC6290@linux.vnet.ibm.com> Reply-To: paulmck@linux.vnet.ibm.com References: <4977CFFE.2020405@cn.fujitsu.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4977CFFE.2020405@cn.fujitsu.com> User-Agent: Mutt/1.5.15+20070412 (2007-04-11) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Jan 22, 2009 at 09:46:38AM +0800, Lai Jiangshan wrote: > > Impact: remove the old CONFIG_RCU_CPU_STALL_DETECTOR > > tree_rcu introduce CONFIG_RCU_CPU_STALL_DETECTOR again. > > These two are the same exactly except: > the old one "depends on CLASSIC_RCU" > the new one "depends on CLASSIC_RCU || TREE_RCU" > > This patch remove the old one. Good eyes! However, Jiri Kosina has already queued this up for the trivial tree: http://lkml.org/lkml/2009/1/15/218 Thanx, Paul > Signed-off-by: Lai Jiangshan > --- > diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug > index 4c9ae60..e770e85 100644 > --- a/lib/Kconfig.debug > +++ b/lib/Kconfig.debug > @@ -633,19 +633,6 @@ config RCU_TORTURE_TEST_RUNNABLE > > config RCU_CPU_STALL_DETECTOR > bool "Check for stalled CPUs delaying RCU grace periods" > - depends on CLASSIC_RCU > - default n > - help > - This option causes RCU to printk information on which > - CPUs are delaying the current grace period, but only when > - the grace period extends for excessive time periods. > - > - Say Y if you want RCU to perform such checks. > - > - Say N if you are unsure. > - > -config RCU_CPU_STALL_DETECTOR > - bool "Check for stalled CPUs delaying RCU grace periods" > depends on CLASSIC_RCU || TREE_RCU > default n > help > >