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 <[email protected]> --- 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 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
