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Commit 382ece71 authored by Li Zefan's avatar Li Zefan Committed by Ingo Molnar
Browse files

tracing: Convert some workqueue events to DEFINE_EVENT 



Use DECLARE_EVENT_CLASS to remove duplicate code:

   text    data     bss     dec     hex filename
  13171     800      72   14043    36db kernel/workqueue.o.old
  12243     800      68   13111    3337 kernel/workqueue.o

Two events are converted:

  workqueue: workqueue_insertion, workqueue_execution

No change in functionality.

Signed-off-by: default avatarLi Zefan <lizf@cn.fujitsu.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <4B0E289F.5010104@cn.fujitsu.com>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
parent c467307c

include/trace/events/workqueue.h

+7 −15
Original line number Diff line number Diff line
@@ -8,7 +8,7 @@ 
#include <linux/sched.h>

#include <linux/tracepoint.h>



TRACE_EVENT(workqueue_insertion,

DECLARE_EVENT_CLASS(workqueue,



	TP_PROTO(struct task_struct *wq_thread, struct work_struct *work),
@@ -30,26 +30,18 @@ TRACE_EVENT(workqueue_insertion, 
		__entry->thread_pid, __entry->func)

);



TRACE_EVENT(workqueue_execution,

DEFINE_EVENT(workqueue, workqueue_insertion,



	TP_PROTO(struct task_struct *wq_thread, struct work_struct *work),



	TP_ARGS(wq_thread, work),

	TP_ARGS(wq_thread, work)

);



	TP_STRUCT__entry(

		__array(char,		thread_comm,	TASK_COMM_LEN)

		__field(pid_t,		thread_pid)

		__field(work_func_t,	func)

	),

DEFINE_EVENT(workqueue, workqueue_execution,



	TP_fast_assign(

		memcpy(__entry->thread_comm, wq_thread->comm, TASK_COMM_LEN);

		__entry->thread_pid	= wq_thread->pid;

		__entry->func		= work->func;

	),

	TP_PROTO(struct task_struct *wq_thread, struct work_struct *work),



	TP_printk("thread=%s:%d func=%pf", __entry->thread_comm,

		__entry->thread_pid, __entry->func)

	TP_ARGS(wq_thread, work)

);



/* Trace the creation of one workqueue thread on a cpu */