[PATCH 1/8] sched & trace: Add a trace event for wait.

[Dongsheng Yang]

From: Dongsheng <yangds.fnst@xxxxxxxxxxxxxx>

Signed-off-by: Dongsheng <yangds.fnst@xxxxxxxxxxxxxx>
---
 include/trace/events/sched.h | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/include/trace/events/sched.h b/include/trace/events/sched.h
index 67e1bbf..7aa7d43a 100644
--- a/include/trace/events/sched.h
+++ b/include/trace/events/sched.h
@@ -51,6 +51,26 @@ TRACE_EVENT(sched_kthread_stop_ret,
 );
 
 /*
+ * Tracepoint for wait:
+ */
+TRACE_EVENT(sched_wait,
+
+	TP_PROTO(struct task_struct *p),
+
+	TP_ARGS(p),
+
+	TP_STRUCT__entry(
+		__field(	pid_t,	pid	)
+	),
+
+	TP_fast_assign(
+		__entry->pid	= p->pid;
+	),
+
+	TP_printk("pid=%d", __entry->pid)
+);
+
+/*
  * Tracepoint for waking up a task:
  */
 DECLARE_EVENT_CLASS(sched_wakeup_template,
-- 
1.8.2.1

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