Messages in this thread Patch in this message | | | From | Dongsheng Yang <> | Subject | [PATCH] sched: fix tracepoint in scheduler. | Date | Thu, 3 Apr 2014 20:12:48 +0800 |
| |
In function set_task_cpu(), if cpu == new_cpu, there is no migration happen. But current trace point will raise a migration trace event.
This patch change trace point to right place, only when migration really happen, an event will be threw out.
Signed-off-by: Dongsheng Yang <yangds.fnst@cn.fujitsu.com> --- kernel/sched/core.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/kernel/sched/core.c b/kernel/sched/core.c index 9cae286..6708aff 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -998,9 +998,8 @@ void set_task_cpu(struct task_struct *p, unsigned int new_cpu) #endif #endif - trace_sched_migrate_task(p, new_cpu); - if (task_cpu(p) != new_cpu) { + trace_sched_migrate_task(p, new_cpu); if (p->sched_class->migrate_task_rq) p->sched_class->migrate_task_rq(p, new_cpu); p->se.nr_migrations++; -- 1.8.2.1
| |