sched: Remove 'cpu' parameter from idle_balance()

The cpu parameter passed to idle_balance() is not needed as it could
be retrieved from 'struct rq.'

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: alex.shi@linaro.org
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1389949444-14821-1-git-send-email-daniel.lezcano@linaro.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>

3 files changed, 4 insertions, 3 deletions

diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 104c8164e04f..74dd565c2e1b 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -2705,7 +2705,7 @@ need_resched:
         pre_schedule(rq, prev);
 
         if (unlikely(!rq->nr_running))
-                idle_balance(cpu, rq);
+                idle_balance(rq);
 
         put_prev_task(rq, prev);
         next = pick_next_task(rq);
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 4caa8030824d..428bc9d2c383 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -6531,12 +6531,13 @@ out:
  * idle_balance is called by schedule() if this_cpu is about to become
  * idle. Attempts to pull tasks from other CPUs.
  */
-void idle_balance(int this_cpu, struct rq *this_rq)
+void idle_balance(struct rq *this_rq)
 {
         struct sched_domain *sd;
         int pulled_task = 0;
         unsigned long next_balance = jiffies + HZ;
         u64 curr_cost = 0;
+        int this_cpu = this_rq->cpu;
 
         this_rq->idle_stamp = rq_clock(this_rq);
 
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index b44720d38ae9..82c0e02f2a58 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -1158,7 +1158,7 @@ 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);
-extern void idle_balance(int this_cpu, struct rq *this_rq);
+extern void idle_balance(struct rq *this_rq);
 
 extern void idle_enter_fair(struct rq *this_rq);
 extern void idle_exit_fair(struct rq *this_rq);