From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755781Ab2K3GTh (ORCPT ); Fri, 30 Nov 2012 01:19:37 -0500 Received: from e23smtp03.au.ibm.com ([202.81.31.145]:46541 "EHLO e23smtp03.au.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753463Ab2K3GTg (ORCPT ); Fri, 30 Nov 2012 01:19:36 -0500 Message-ID: <1354256362.2552.6.camel@ThinkPad-T5421.cn.ibm.com> Subject: [PATCH rcu] Remove unused code originally used for context tracking From: Li Zhong To: paulmck@linux.vnet.ibm.com Cc: Frederic Weisbecker , LKML , Andrew Morton , "H. Peter Anvin" , Ingo Molnar , Peter Zijlstra , Steven Rostedt , Thomas Gleixner , Gilad.Ben-Yossef.gilad@benyossef.com Date: Fri, 30 Nov 2012 14:19:22 +0800 In-Reply-To: <20121129113627.GS2474@linux.vnet.ibm.com> References: <1354041205-6989-1-git-send-email-fweisbec@gmail.com> <1354179992.2499.35.camel@ThinkPad-T5421.cn.ibm.com> <20121129113627.GS2474@linux.vnet.ibm.com> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.2.3-0ubuntu6 Content-Transfer-Encoding: 7bit Mime-Version: 1.0 x-cbid: 12113006-6102-0000-0000-000002A57ED8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org As new context tracking subsystem added, it seems ignore_user_qs and in_user defined in struct rcu_dynticks are no longer needed, so remove them. Signed-off-by: Li Zhong --- kernel/rcutree.c | 3 --- kernel/rcutree.h | 4 ---- 2 files changed, 7 deletions(-) diff --git a/kernel/rcutree.c b/kernel/rcutree.c index e441b77..b8fae5d 100644 --- a/kernel/rcutree.c +++ b/kernel/rcutree.c @@ -2719,9 +2719,6 @@ rcu_boot_init_percpu_data(int cpu, struct rcu_state *rsp) rdp->dynticks = &per_cpu(rcu_dynticks, cpu); WARN_ON_ONCE(rdp->dynticks->dynticks_nesting != DYNTICK_TASK_EXIT_IDLE); WARN_ON_ONCE(atomic_read(&rdp->dynticks->dynticks) != 1); -#ifdef CONFIG_RCU_USER_QS - WARN_ON_ONCE(rdp->dynticks->in_user); -#endif rdp->cpu = cpu; rdp->rsp = rsp; rcu_boot_init_nocb_percpu_data(rdp); diff --git a/kernel/rcutree.h b/kernel/rcutree.h index 4b69291..6f21f2e 100644 --- a/kernel/rcutree.h +++ b/kernel/rcutree.h @@ -102,10 +102,6 @@ struct rcu_dynticks { /* idle-period nonlazy_posted snapshot. */ int tick_nohz_enabled_snap; /* Previously seen value from sysfs. */ #endif /* #ifdef CONFIG_RCU_FAST_NO_HZ */ -#ifdef CONFIG_RCU_USER_QS - bool ignore_user_qs; /* Treat userspace as extended QS or not */ - bool in_user; /* Is the CPU in userland from RCU POV? */ -#endif }; /* RCU's kthread states for tracing. */ -- 1.7.11.4