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ftrace: start wakeup tracing after setting function tracer
[firefly-linux-kernel-4.4.55.git]
/
kernel
/
sched_stats.h
diff --git
a/kernel/sched_stats.h
b/kernel/sched_stats.h
index a38878e0e49d50cebcbb52fc5a976df23497f3ef..80179ef7450e95684f9d3f0221fce3b32615bbd5 100644
(file)
--- a/
kernel/sched_stats.h
+++ b/
kernel/sched_stats.h
@@
-198,6
+198,9
@@
static inline void sched_info_queued(struct task_struct *t)
/*
* Called when a process ceases being the active-running process, either
* voluntarily or involuntarily. Now we can calculate how long we ran.
/*
* Called when a process ceases being the active-running process, either
* voluntarily or involuntarily. Now we can calculate how long we ran.
+ * Also, if the process is still in the TASK_RUNNING state, call
+ * sched_info_queued() to mark that it has now again started waiting on
+ * the runqueue.
*/
static inline void sched_info_depart(struct task_struct *t)
{
*/
static inline void sched_info_depart(struct task_struct *t)
{
@@
-206,6
+209,9
@@
static inline void sched_info_depart(struct task_struct *t)
t->sched_info.cpu_time += delta;
rq_sched_info_depart(task_rq(t), delta);
t->sched_info.cpu_time += delta;
rq_sched_info_depart(task_rq(t), delta);
+
+ if (t->state == TASK_RUNNING)
+ sched_info_queued(t);
}
/*
}
/*