1 files changed, 28 insertions, 58 deletions

diff --git a/include/trace/events/workqueue.h b/include/trace/events/workqueue.h
index d6c974474e70..49682d7e9d60 100644
--- a/include/trace/events/workqueue.h
+++ b/include/trace/events/workqueue.h
@@ -4,89 +4,59 @@
 #if !defined(_TRACE_WORKQUEUE_H) || defined(TRACE_HEADER_MULTI_READ)
 #define _TRACE_WORKQUEUE_H
 
-#include <linux/workqueue.h>
-#include <linux/sched.h>
 #include <linux/tracepoint.h>
+#include <linux/workqueue.h>
 
-DECLARE_EVENT_CLASS(workqueue,
+/**
+ * workqueue_execute_start - called immediately before the workqueue callback
+ * @work:       pointer to struct work_struct
+ *
+ * Allows to track workqueue execution.
+ */
+TRACE_EVENT(workqueue_execute_start,
 
-        TP_PROTO(struct task_struct *wq_thread, struct work_struct *work),
+        TP_PROTO(struct work_struct *work),
 
-        TP_ARGS(wq_thread, work),
+        TP_ARGS(work),
 
         TP_STRUCT__entry(
-                __array(char,           thread_comm,    TASK_COMM_LEN)
-                __field(pid_t,          thread_pid)
-                __field(work_func_t,    func)
+                __field( void *,        work    )
+                __field( void *,        function)
         ),
 
         TP_fast_assign(
-                memcpy(__entry->thread_comm, wq_thread->comm, TASK_COMM_LEN);
-                __entry->thread_pid     = wq_thread->pid;
-                __entry->func           = work->func;
+                __entry->work           = work;
+                __entry->function       = work->func;
         ),
 
-        TP_printk("thread=%s:%d func=%pf", __entry->thread_comm,
-                __entry->thread_pid, __entry->func)
-);
-
-DEFINE_EVENT(workqueue, workqueue_insertion,
-
-        TP_PROTO(struct task_struct *wq_thread, struct work_struct *work),
-
-        TP_ARGS(wq_thread, work)
-);
-
-DEFINE_EVENT(workqueue, workqueue_execution,
-
-        TP_PROTO(struct task_struct *wq_thread, struct work_struct *work),
-
-        TP_ARGS(wq_thread, work)
+        TP_printk("work struct %p: function %pf", __entry->work, __entry->function)
 );
 
-/* Trace the creation of one workqueue thread on a cpu */
-TRACE_EVENT(workqueue_creation,
+/**
+ * workqueue_execute_end - called immediately before the workqueue callback
+ * @work:       pointer to struct work_struct
+ *
+ * Allows to track workqueue execution.
+ */
+TRACE_EVENT(workqueue_execute_end,
 
-        TP_PROTO(struct task_struct *wq_thread, int cpu),
+        TP_PROTO(struct work_struct *work),
 
-        TP_ARGS(wq_thread, cpu),
+        TP_ARGS(work),
 
         TP_STRUCT__entry(
-                __array(char,   thread_comm,    TASK_COMM_LEN)
-                __field(pid_t,  thread_pid)
-                __field(int,    cpu)
+                __field( void *,        work    )
         ),
 
         TP_fast_assign(
-                memcpy(__entry->thread_comm, wq_thread->comm, TASK_COMM_LEN);
-                __entry->thread_pid     = wq_thread->pid;
-                __entry->cpu            = cpu;
+                __entry->work           = work;
         ),
 
-        TP_printk("thread=%s:%d cpu=%d", __entry->thread_comm,
-                __entry->thread_pid, __entry->cpu)
+        TP_printk("work struct %p", __entry->work)
 );
 
-TRACE_EVENT(workqueue_destruction,
-
-        TP_PROTO(struct task_struct *wq_thread),
-
-        TP_ARGS(wq_thread),
-
-        TP_STRUCT__entry(
-                __array(char,   thread_comm,    TASK_COMM_LEN)
-                __field(pid_t,  thread_pid)
-        ),
-
-        TP_fast_assign(
-                memcpy(__entry->thread_comm, wq_thread->comm, TASK_COMM_LEN);
-                __entry->thread_pid     = wq_thread->pid;
-        ),
-
-        TP_printk("thread=%s:%d", __entry->thread_comm, __entry->thread_pid)
-);
 
-#endif /* _TRACE_WORKQUEUE_H */
+#endif /*  _TRACE_WORKQUEUE_H */
 
 /* This part must be outside protection */
 #include <trace/define_trace.h>