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authorIngo Molnar <mingo@elte.hu>2008-05-12 15:20:53 -0400
committerThomas Gleixner <tglx@linutronix.de>2008-05-23 15:08:28 -0400
commit36fc25a9f48deacd8aa08cd2d1c186a4e412604f (patch)
treec380d30f4501fc8c1d5297f444cd65e78a688db4 /kernel/sched.c
parentf29c73fe3404f8799ed57aaf48859e0b55fc071f (diff)
ftrace: sched tree fix
Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'kernel/sched.c')
-rw-r--r--kernel/sched.c35
1 files changed, 21 insertions, 14 deletions
diff --git a/kernel/sched.c b/kernel/sched.c
index 9ca4a2e6a236..3bc7c5362998 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -2414,6 +2414,23 @@ static int sched_balance_self(int cpu, int flag)
2414 2414
2415#ifdef CONFIG_CONTEXT_SWITCH_TRACER 2415#ifdef CONFIG_CONTEXT_SWITCH_TRACER
2416 2416
2417void ftrace_task(struct task_struct *p, void *__tr, void *__data)
2418{
2419#if 0
2420 /*
2421 * trace timeline tree
2422 */
2423 __trace_special(__tr, __data,
2424 p->pid, p->se.vruntime, p->se.sum_exec_runtime);
2425#else
2426 /*
2427 * trace balance metrics
2428 */
2429 __trace_special(__tr, __data,
2430 p->pid, p->se.avg_overlap, 0);
2431#endif
2432}
2433
2417void ftrace_all_fair_tasks(void *__rq, void *__tr, void *__data) 2434void ftrace_all_fair_tasks(void *__rq, void *__tr, void *__data)
2418{ 2435{
2419 struct task_struct *p; 2436 struct task_struct *p;
@@ -2421,32 +2438,22 @@ void ftrace_all_fair_tasks(void *__rq, void *__tr, void *__data)
2421 struct rb_node *curr; 2438 struct rb_node *curr;
2422 struct rq *rq = __rq; 2439 struct rq *rq = __rq;
2423 2440
2424 curr = first_fair(&rq->cfs);
2425 if (!curr)
2426 return;
2427
2428 if (rq->cfs.curr) { 2441 if (rq->cfs.curr) {
2429 p = task_of(rq->cfs.curr); 2442 p = task_of(rq->cfs.curr);
2430 __trace_special(__tr, __data, 2443 ftrace_task(p, __tr, __data);
2431 p->pid, p->se.vruntime, p->se.sum_exec_runtime);
2432 } 2444 }
2433 if (rq->cfs.next) { 2445 if (rq->cfs.next) {
2434 p = task_of(rq->cfs.next); 2446 p = task_of(rq->cfs.next);
2435 __trace_special(__tr, __data, 2447 ftrace_task(p, __tr, __data);
2436 p->pid, p->se.vruntime, p->se.sum_exec_runtime);
2437 } 2448 }
2438 2449
2439 while (curr) { 2450 for (curr = first_fair(&rq->cfs); curr; curr = rb_next(curr)) {
2440 se = rb_entry(curr, struct sched_entity, run_node); 2451 se = rb_entry(curr, struct sched_entity, run_node);
2441 if (!entity_is_task(se)) 2452 if (!entity_is_task(se))
2442 continue; 2453 continue;
2443 2454
2444 p = task_of(se); 2455 p = task_of(se);
2445 2456 ftrace_task(p, __tr, __data);
2446 __trace_special(__tr, __data,
2447 p->pid, p->se.vruntime, p->se.sum_exec_runtime);
2448
2449 curr = rb_next(curr);
2450 } 2457 }
2451} 2458}
2452 2459