From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756021Ab3L3NpC (ORCPT ); Mon, 30 Dec 2013 08:45:02 -0500 Received: from mail-wi0-f170.google.com ([209.85.212.170]:44951 "EHLO mail-wi0-f170.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755604Ab3L3No7 (ORCPT ); Mon, 30 Dec 2013 08:44:59 -0500 From: Daniel Lezcano To: mingo@redhat.com, peterz@infradead.org Cc: linux-kernel@vger.kernel.org, linaro-kernel@lists.linaro.org Subject: [PATCH 2/7] sched: pass struct rq to on_null_domain function Date: Mon, 30 Dec 2013 14:44:48 +0100 Message-Id: <1388411093-3413-3-git-send-email-daniel.lezcano@linaro.org> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1388411093-3413-1-git-send-email-daniel.lezcano@linaro.org> References: <1388411093-3413-1-git-send-email-daniel.lezcano@linaro.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The on_null_domain function is getting the cpu to retrieve the struct rq associated with it. Pass the struct rq directly to the function as the caller has already the info. Signed-off-by: Daniel Lezcano --- kernel/sched/fair.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index 4cb414a..82dd145 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -6861,9 +6861,9 @@ static void run_rebalance_domains(struct softirq_action *h) nohz_idle_balance(this_cpu, idle); } -static inline int on_null_domain(int cpu) +static inline int on_null_domain(struct rq *rq) { - return !rcu_dereference_sched(cpu_rq(cpu)->sd); + return !rcu_dereference_sched(rq->sd); } /* @@ -6875,10 +6875,10 @@ void trigger_load_balance(struct rq *rq) /* Don't need to rebalance while attached to NULL domain */ if (time_after_eq(jiffies, rq->next_balance) && - likely(!on_null_domain(cpu))) + likely(!on_null_domain(rq))) raise_softirq(SCHED_SOFTIRQ); #ifdef CONFIG_NO_HZ_COMMON - if (nohz_kick_needed(rq) && likely(!on_null_domain(cpu))) + if (nohz_kick_needed(rq) && likely(!on_null_domain(rq))) nohz_balancer_kick(cpu); #endif } -- 1.7.9.5