sched: fix tracepoints in scheduler
The trace point only caught one of many places where a task changes cpu, put it in the right place to we get all of them. Change the signature while we're at it. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Ingo Molnar <mingo@elte.hu>
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@ -30,8 +30,8 @@ DECLARE_TRACE(sched_switch,
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TPARGS(rq, prev, next));
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DECLARE_TRACE(sched_migrate_task,
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TPPROTO(struct rq *rq, struct task_struct *p, int dest_cpu),
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TPARGS(rq, p, dest_cpu));
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TPPROTO(struct task_struct *p, int orig_cpu, int dest_cpu),
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TPARGS(p, orig_cpu, dest_cpu));
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DECLARE_TRACE(sched_process_free,
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TPPROTO(struct task_struct *p),
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@ -1851,6 +1851,8 @@ void set_task_cpu(struct task_struct *p, unsigned int new_cpu)
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clock_offset = old_rq->clock - new_rq->clock;
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trace_sched_migrate_task(p, task_cpu(p), new_cpu);
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#ifdef CONFIG_SCHEDSTATS
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if (p->se.wait_start)
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p->se.wait_start -= clock_offset;
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@ -2868,7 +2870,6 @@ static void sched_migrate_task(struct task_struct *p, int dest_cpu)
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|| unlikely(!cpu_active(dest_cpu)))
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goto out;
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trace_sched_migrate_task(rq, p, dest_cpu);
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/* force the process onto the specified CPU */
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if (migrate_task(p, dest_cpu, &req)) {
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/* Need to wait for migration thread (might exit: take ref). */
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