From: Daniel Lezcano Date: Mon, 6 Jan 2014 11:34:38 +0000 (+0100) Subject: sched: Reduce trigger_load_balance() parameters X-Git-Tag: firefly_0821_release~176^2~4646^2~32 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=7caff66f361c44d0fbc74ed1cfa60a357fc84cf2;p=firefly-linux-kernel-4.4.55.git sched: Reduce trigger_load_balance() parameters The cpu information is already stored in the struct rq, so no need to pass it as parameter to the trigger_load_balance function. Cc: linaro-kernel@lists.linaro.org Cc: preeti.lkml@gmail.com Cc: mingo@redhat.com Cc: peterz@infradead.org Signed-off-by: Daniel Lezcano Signed-off-by: Peter Zijlstra Link: http://lkml.kernel.org/r/1389008085-9069-2-git-send-email-daniel.lezcano@linaro.org Signed-off-by: Ingo Molnar --- diff --git a/kernel/sched/core.c b/kernel/sched/core.c index a549d9a22502..392c6f87906e 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -2436,7 +2436,7 @@ void scheduler_tick(void) #ifdef CONFIG_SMP rq->idle_balance = idle_cpu(cpu); - trigger_load_balance(rq, cpu); + trigger_load_balance(rq); #endif rq_last_tick_reset(rq); } diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index b73f4ba62b24..b35d32201617 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -6876,8 +6876,10 @@ static inline int on_null_domain(int cpu) /* * Trigger the SCHED_SOFTIRQ if it is time to do periodic load balancing. */ -void trigger_load_balance(struct rq *rq, int cpu) +void trigger_load_balance(struct rq *rq) { + int cpu = rq->cpu; + /* Don't need to rebalance while attached to NULL domain */ if (time_after_eq(jiffies, rq->next_balance) && likely(!on_null_domain(cpu))) diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h index 890339099550..c2119fd20f8b 100644 --- a/kernel/sched/sched.h +++ b/kernel/sched/sched.h @@ -1175,7 +1175,7 @@ extern const struct sched_class idle_sched_class; extern void update_group_power(struct sched_domain *sd, int cpu); -extern void trigger_load_balance(struct rq *rq, int cpu); +extern void trigger_load_balance(struct rq *rq); extern void idle_balance(int this_cpu, struct rq *this_rq); extern void idle_enter_fair(struct rq *this_rq);