From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752550Ab3EJMHz (ORCPT ); Fri, 10 May 2013 08:07:55 -0400 Received: from terminus.zytor.com ([198.137.202.10]:37309 "EHLO terminus.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752417Ab3EJMHw (ORCPT ); Fri, 10 May 2013 08:07:52 -0400 Date: Fri, 10 May 2013 05:07:08 -0700 From: tip-bot for Nathan Zimmer Message-ID: Cc: linux-kernel@vger.kernel.org, hpa@zytor.com, mingo@kernel.org, peterz@infradead.org, nzimmer@sgi.com, tglx@linutronix.de Reply-To: mingo@kernel.org, hpa@zytor.com, linux-kernel@vger.kernel.org, peterz@infradead.org, nzimmer@sgi.com, tglx@linutronix.de In-Reply-To: <1368116643-87971-1-git-send-email-nzimmer@sgi.com> References: <1368116643-87971-1-git-send-email-nzimmer@sgi.com> To: linux-tip-commits@vger.kernel.org Subject: [tip:sched/core] sched: Use this_rq() helper Git-Commit-ID: 424c93fe4cbe719e7fd7169248d2b648c493b68d X-Mailer: tip-git-log-daemon Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=UTF-8 Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Commit-ID: 424c93fe4cbe719e7fd7169248d2b648c493b68d Gitweb: http://git.kernel.org/tip/424c93fe4cbe719e7fd7169248d2b648c493b68d Author: Nathan Zimmer AuthorDate: Thu, 9 May 2013 11:24:03 -0500 Committer: Ingo Molnar CommitDate: Fri, 10 May 2013 10:35:56 +0200 sched: Use this_rq() helper It is a few instructions more efficent to and slightly more readable to use this_rq()-> instead of cpu_rq(smp_processor_id())-> . Size comparison of kernel/sched/fair.o: text data bss dec hex filename 27972 122 26 28120 6dd8 fair.o.before 27956 122 26 28104 6dc8 fair.o.after Signed-off-by: Nathan Zimmer Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1368116643-87971-1-git-send-email-nzimmer@sgi.com Signed-off-by: Ingo Molnar --- kernel/sched/fair.c | 6 ++---- kernel/sched/rt.c | 2 +- 2 files changed, 3 insertions(+), 5 deletions(-) diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index c61a614..f2c9c0c 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -5418,10 +5418,9 @@ static inline void nohz_balance_exit_idle(int cpu) static inline void set_cpu_sd_state_busy(void) { struct sched_domain *sd; - int cpu = smp_processor_id(); rcu_read_lock(); - sd = rcu_dereference_check_sched_domain(cpu_rq(cpu)->sd); + sd = rcu_dereference_check_sched_domain(this_rq()->sd); if (!sd || !sd->nohz_idle) goto unlock; @@ -5436,10 +5435,9 @@ unlock: void set_cpu_sd_state_idle(void) { struct sched_domain *sd; - int cpu = smp_processor_id(); rcu_read_lock(); - sd = rcu_dereference_check_sched_domain(cpu_rq(cpu)->sd); + sd = rcu_dereference_check_sched_domain(this_rq()->sd); if (!sd || sd->nohz_idle) goto unlock; diff --git a/kernel/sched/rt.c b/kernel/sched/rt.c index 127a2c4..7aced2e 100644 --- a/kernel/sched/rt.c +++ b/kernel/sched/rt.c @@ -472,7 +472,7 @@ static int rt_se_boosted(struct sched_rt_entity *rt_se) #ifdef CONFIG_SMP static inline const struct cpumask *sched_rt_period_mask(void) { - return cpu_rq(smp_processor_id())->rd->span; + return this_rq()->rd->span; } #else static inline const struct cpumask *sched_rt_period_mask(void)