From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754792AbcAVUoO (ORCPT ); Fri, 22 Jan 2016 15:44:14 -0500 Received: from www.linutronix.de ([62.245.132.108]:48211 "EHLO Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751907AbcAVUoL (ORCPT ); Fri, 22 Jan 2016 15:44:11 -0500 Date: Fri, 22 Jan 2016 21:44:09 +0100 From: Sebastian Andrzej Siewior To: Grygorii Strashko , Thomas Gleixner Cc: LKML , linux-rt-users , Steven Rostedt Subject: Re: [ANNOUNCE] 4.4-rc6-rt1 Message-ID: <20160122204409.GB3883@linutronix.de> References: <20151223225755.GA21121@linutronix.de> <56A24C58.8060209@ti.com> <56A24F39.2050606@linutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <56A24F39.2050606@linutronix.de> X-Key-Id: 2A8CF5D1 X-Key-Fingerprint: 6425 4695 FFF0 AA44 66CC 19E6 7B96 E816 2A8C F5D1 User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org * Sebastian Andrzej Siewior | 2016-01-22 16:48:09 [+0100]: >On 01/22/2016 04:35 PM, Grygorii Strashko wrote: >> Additional note: RCU_BOOST now depends on RCU_EXPERT, so commit >> 3da4cab "rcu: make RCU_BOOST default on RT" is nop now. >> >> config RCU_BOOST >> bool "Enable RCU priority boosting" >> depends on RT_MUTEXES && PREEMPT_RCU && RCU_EXPERT >> default y if PREEMPT_RT_FULL > >yeah, I've been thinking about giving the experts menu item an y on RT >as well. Subject: [PATCH] RCU: make RCU_EXPERT y on RT because we want RCU_BOOST y on RT Signed-off-by: Sebastian Andrzej Siewior --- init/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/init/Kconfig b/init/Kconfig index 6f4408adf62d..a7c81c0911da 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -498,7 +498,7 @@ config TINY_RCU config RCU_EXPERT bool "Make expert-level adjustments to RCU configuration" - default n + default y if PREEMPT_RT_FULL help This option needs to be enabled if you wish to make expert-level adjustments to RCU configuration. By default, -- 2.7.0.rc3