From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755888Ab2JaA3s (ORCPT ); Tue, 30 Oct 2012 20:29:48 -0400 Received: from hrndva-omtalb.mail.rr.com ([71.74.56.122]:14294 "EHLO hrndva-omtalb.mail.rr.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752050Ab2JaA3o (ORCPT ); Tue, 30 Oct 2012 20:29:44 -0400 X-Authority-Analysis: v=2.0 cv=YP4dOG6x c=1 sm=0 a=rXTBtCOcEpjy1lPqhTCpEQ==:17 a=mNMOxpOpBa8A:10 a=Ciwy3NGCPMMA:10 a=9Sh0tkKHrLsA:10 a=5SG0PmZfjMsA:10 a=bbbx4UPp9XUA:10 a=meVymXHHAAAA:8 a=NDWzv-LtIjcA:10 a=VwQbUJbxAAAA:8 a=ikMIzOjJKqLRoHuP5kEA:9 a=Zh68SRI7RUMA:10 a=rXTBtCOcEpjy1lPqhTCpEQ==:117 X-Cloudmark-Score: 0 X-Originating-IP: 74.67.115.198 Message-Id: <20121031002942.754450721@goodmis.org> User-Agent: quilt/0.60-1 Date: Tue, 30 Oct 2012 20:29:12 -0400 From: Steven Rostedt To: linux-kernel@vger.kernel.org, linux-rt-users Cc: Thomas Gleixner , Carsten Emde , John Kacur Subject: [PATCH RT 2/4] rcu: Disable RCU_FAST_NO_HZ on RT References: <20121031002910.195421780@goodmis.org> Content-Disposition: inline; filename=0002-rcu-Disable-RCU_FAST_NO_HZ-on-RT.patch Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Thomas Gleixner This uses a timer_list timer from the irq disabled guts of the idle code. Disable it for now to prevent wreckage. Signed-off-by: Thomas Gleixner Cc: stable-rt@vger.kernel.org --- init/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/init/Kconfig b/init/Kconfig index c06208b..87afda5 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -474,7 +474,7 @@ config RCU_FANOUT_EXACT config RCU_FAST_NO_HZ bool "Accelerate last non-dyntick-idle CPU's grace periods" - depends on NO_HZ && SMP + depends on NO_HZ && SMP && !PREEMPT_RT_FULL default n help This option causes RCU to attempt to accelerate grace periods -- 1.7.10.4