From: Ingo Molnar <mingo@elte.hu>
Date: Mon, 12 May 2008 19:20:52 +0000 (+0200)
Subject: ftrace: trace curr/next tasks
X-Git-Tag: v2.6.27-rc1~1102^2^2~1^2~89
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=24cd5d111e8c713e62cda7ca1d01232402e3d3c9;p=linux-2.6

ftrace: trace curr/next tasks

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---

diff --git a/kernel/sched.c b/kernel/sched.c
index b9208a0e33..673b588b71 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -2398,8 +2398,8 @@ static int sched_balance_self(int cpu, int flag)
 
 void ftrace_all_fair_tasks(void *__rq, void *__tr, void *__data)
 {
-	struct sched_entity *se;
 	struct task_struct *p;
+	struct sched_entity *se;
 	struct rb_node *curr;
 	struct rq *rq = __rq;
 
@@ -2407,6 +2407,17 @@ void ftrace_all_fair_tasks(void *__rq, void *__tr, void *__data)
 	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);
+	}
+	if (rq->cfs.next) {
+		p = task_of(rq->cfs.next);
+		__trace_special(__tr, __data,
+		      p->pid, p->se.vruntime, p->se.sum_exec_runtime);
+	}
+
 	while (curr) {
 		se = rb_entry(curr, struct sched_entity, run_node);
 		if (!entity_is_task(se))