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From: tip-bot for Li Zefan on 29 Jun 2010 05:30
Commit-ID: 210f766915207636acccba7bec42248bfe882998
Gitweb: http://git.kernel.org/tip/210f766915207636acccba7bec42248bfe882998
Author: Li Zefan <lizf(a)cn.fujitsu.com>
AuthorDate: Mon, 24 May 2010 16:23:35 +0800
Committer: Steven Rostedt <rostedt(a)goodmis.org>
CommitDate: Mon, 28 Jun 2010 17:12:50 -0400

tracing: Convert more sched events to DEFINE_EVENT

Convert sched_wait_task to DEFINE_EVENT, and save ~1K:

text data bss dec hex filename
104595 9424 4992 119011 1d0e3 kernel/sched.o.orig
103619 9344 4992 117955 1ccc3 kernel/sched.o

No change in functionality.

Signed-off-by: Li Zefan <lizf(a)cn.fujitsu.com>
LKML-Reference: <4BFA3787.2040800(a)cn.fujitsu.com>
Signed-off-by: Steven Rostedt <rostedt(a)goodmis.org>
---
include/trace/events/sched.h | 32 +++++++-------------------------
1 files changed, 7 insertions(+), 25 deletions(-)

diff --git a/include/trace/events/sched.h b/include/trace/events/sched.h
index b9e1dd6..9208c92 100644
--- a/include/trace/events/sched.h
+++ b/include/trace/events/sched.h
@@ -50,31 +50,6 @@ TRACE_EVENT(sched_kthread_stop_ret,
);

/*
- * Tracepoint for waiting on task to unschedule:
- */
-TRACE_EVENT(sched_wait_task,
-
- TP_PROTO(struct task_struct *p),
-
- TP_ARGS(p),
-
- TP_STRUCT__entry(
- __array( char, comm, TASK_COMM_LEN )
- __field( pid_t, pid )
- __field( int, prio )
- ),
-
- TP_fast_assign(
- memcpy(__entry->comm, p->comm, TASK_COMM_LEN);
- __entry->pid = p->pid;
- __entry->prio = p->prio;
- ),
-
- TP_printk("comm=%s pid=%d prio=%d",
- __entry->comm, __entry->pid, __entry->prio)
-);
-
-/*
* Tracepoint for waking up a task:
*/
DECLARE_EVENT_CLASS(sched_wakeup_template,
@@ -240,6 +215,13 @@ DEFINE_EVENT(sched_process_template, sched_process_exit,
TP_ARGS(p));

/*
+ * Tracepoint for waiting on task to unschedule:
+ */
+DEFINE_EVENT(sched_process_template, sched_wait_task,
+ TP_PROTO(struct task_struct *p),
+ TP_ARGS(p));
+
+/*
* Tracepoint for a waiting task:
*/
TRACE_EVENT(sched_process_wait,
--
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Next: [tip:perf/core] tracing/function-graph: Use correct string size for snprintf