sched: kill unused parameter of pick_next_task()
Impact: micro-optimization
Parameter "prev" is not used really.
Signed-off-by: Wang Chen <wangchen@cn.fujitsu.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/kernel/sched.c b/kernel/sched.c
index dfae1bf..9fe8e17 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -4603,7 +4603,7 @@
* Pick up the highest-prio task:
*/
static inline struct task_struct *
-pick_next_task(struct rq *rq, struct task_struct *prev)
+pick_next_task(struct rq *rq)
{
const struct sched_class *class;
struct task_struct *p;
@@ -4678,7 +4678,7 @@
idle_balance(cpu, rq);
prev->sched_class->put_prev_task(rq, prev);
- next = pick_next_task(rq, prev);
+ next = pick_next_task(rq);
if (likely(prev != next)) {
sched_info_switch(prev, next);
@@ -6514,7 +6514,7 @@
if (!rq->nr_running)
break;
update_rq_clock(rq);
- next = pick_next_task(rq, rq->curr);
+ next = pick_next_task(rq);
if (!next)
break;
next->sched_class->put_prev_task(rq, next);