linux-kernel - [tip:perf/core] tracing: Convert some workqueue events to DEFINE

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Message-ID: <tip-382ece710bf88b08440b598731361e5a47582b62@git.kernel.org>
Date:	Thu, 26 Nov 2009 08:43:18 GMT
From:	tip-bot for Li Zefan <lizf@...fujitsu.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, hpa@...or.com, mingo@...hat.com,
	fweisbec@...il.com, rostedt@...dmis.org, lizf@...fujitsu.com,
	tglx@...utronix.de, mingo@...e.hu
Subject: [tip:perf/core] tracing: Convert some workqueue events to DEFINE_EVENT

Commit-ID:  382ece710bf88b08440b598731361e5a47582b62
Gitweb:     http://git.kernel.org/tip/382ece710bf88b08440b598731361e5a47582b62
Author:     Li Zefan <lizf@...fujitsu.com>
AuthorDate: Thu, 26 Nov 2009 15:05:03 +0800
Committer:  Ingo Molnar <mingo@...e.hu>
CommitDate: Thu, 26 Nov 2009 09:14:03 +0100

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: Li Zefan <lizf@...fujitsu.com>
Cc: Steven Rostedt <rostedt@...dmis.org>
Cc: Frederic Weisbecker <fweisbec@...il.com>
LKML-Reference: <4B0E289F.5010104@...fujitsu.com>
Signed-off-by: Ingo Molnar <mingo@...e.hu>
---
 include/trace/events/workqueue.h |   22 +++++++---------------
 1 files changed, 7 insertions(+), 15 deletions(-)

diff --git a/include/trace/events/workqueue.h b/include/trace/events/workqueue.h
index e4612db..d6c9744 100644
--- a/include/trace/events/workqueue.h
+++ b/include/trace/events/workqueue.h
@@ -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 */
--
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