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sched: kill unused parameter of pick_next_task()

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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>
This commit is contained in:
Wang Chen 2009-03-02 13:55:26 +08:00 committed by Ingo Molnar
parent 72fd455ba5
commit b67802ea80
1 changed files with 3 additions and 3 deletions
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6
kernel/sched.c
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@ -4603,7 +4603,7 @@ static inline void schedule_debug(struct task_struct *prev)
* Pick up the highest-prio task: * Pick up the highest-prio task:
*/ */
static inline struct task_struct * 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; const struct sched_class *class;
struct task_struct *p; struct task_struct *p;
@ -4678,7 +4678,7 @@ need_resched_nonpreemptible:
idle_balance(cpu, rq); idle_balance(cpu, rq);
prev->sched_class->put_prev_task(rq, prev); prev->sched_class->put_prev_task(rq, prev);
next = pick_next_task(rq, prev); next = pick_next_task(rq);
if (likely(prev != next)) { if (likely(prev != next)) {
sched_info_switch(prev, next); sched_info_switch(prev, next);
@ -6514,7 +6514,7 @@ static void migrate_dead_tasks(unsigned int dead_cpu)
if (!rq->nr_running) if (!rq->nr_running)
break; break;
update_rq_clock(rq); update_rq_clock(rq);
next = pick_next_task(rq, rq->curr); next = pick_next_task(rq);
if (!next) if (!next)
break; break;
next->sched_class->put_prev_task(rq, next); next->sched_class->put_prev_task(rq, next);