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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 <daniel.lezcano@linaro.org>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1389008085-9069-2-git-send-email-daniel.lezcano@linaro.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Daniel Lezcano 2014-01-06 12:34:38 +01:00 committed by Ingo Molnar
parent de212f18e9
commit 7caff66f36
3 changed files with 5 additions and 3 deletions
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2
kernel/sched/core.c
View File

@ -2436,7 +2436,7 @@ void scheduler_tick(void)
#ifdef CONFIG_SMP #ifdef CONFIG_SMP
rq->idle_balance = idle_cpu(cpu); rq->idle_balance = idle_cpu(cpu);
trigger_load_balance(rq, cpu); trigger_load_balance(rq);
#endif #endif
rq_last_tick_reset(rq); rq_last_tick_reset(rq);
} }

4
kernel/sched/fair.c
View File

@ -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. * 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 */ /* Don't need to rebalance while attached to NULL domain */
if (time_after_eq(jiffies, rq->next_balance) && if (time_after_eq(jiffies, rq->next_balance) &&
likely(!on_null_domain(cpu))) likely(!on_null_domain(cpu)))

2
kernel/sched/sched.h
View File

@ -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 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_balance(int this_cpu, struct rq *this_rq);
extern void idle_enter_fair(struct rq *this_rq); extern void idle_enter_fair(struct rq *this_rq);