ftrace: sched tree fix (36fc25a9) · Commits · e / devices / android_kernel_teracube_emerald

kernel/sched.c

+21 −14

Original line number	Diff line number	Diff line
		@@ -2414,6 +2414,23 @@ static int sched_balance_self(int cpu, int flag)

		#ifdef CONFIG_CONTEXT_SWITCH_TRACER

		void ftrace_task(struct task_struct p, void __tr, void *__data)
		{
		#if 0
		/*
		* trace timeline tree
		*/
		__trace_special(__tr, __data,
		p->pid, p->se.vruntime, p->se.sum_exec_runtime);
		#else
		/*
		* trace balance metrics
		*/
		__trace_special(__tr, __data,
		p->pid, p->se.avg_overlap, 0);
		#endif
		}

		void ftrace_all_fair_tasks(void __rq, void __tr, void *__data)
		{
		struct task_struct *p;
		@@ -2421,32 +2438,22 @@ void ftrace_all_fair_tasks(void __rq, void __tr, void *__data)
		struct rb_node *curr;
		struct rq *rq = __rq;

		curr = first_fair(&rq->cfs);
		if (!curr)
		return;

		if (rq->cfs.curr) {
		p = task_of(rq->cfs.curr);
		__trace_special(__tr, __data,
		p->pid, p->se.vruntime, p->se.sum_exec_runtime);
		ftrace_task(p, __tr, __data);
		}
		if (rq->cfs.next) {
		p = task_of(rq->cfs.next);
		__trace_special(__tr, __data,
		p->pid, p->se.vruntime, p->se.sum_exec_runtime);
		ftrace_task(p, __tr, __data);
		}

		while (curr) {
		for (curr = first_fair(&rq->cfs); curr; curr = rb_next(curr)) {
		se = rb_entry(curr, struct sched_entity, run_node);
		if (!entity_is_task(se))
		continue;

		p = task_of(se);

		__trace_special(__tr, __data,
		p->pid, p->se.vruntime, p->se.sum_exec_runtime);

		curr = rb_next(curr);
		ftrace_task(p, __tr, __data);
		}
		}