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tracing: Convert softirq events to DEFINE_EVENT 

Use DECLARE_EVENT_CLASS to remove duplicate code:

   text    data     bss     dec     hex filename
  12781     952      36   13769    35c9 kernel/softirq.o.old
  11981     952      32   12965    32a5 kernel/softirq.o

Two events are converted:

  softirq: softirq_entry, softirq_exit

No change in functionality.

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <4B0E287F.4030708@cn.fujitsu.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Li Zefan 2009-11-26 15:04:31 +08:00 committed by Ingo Molnar
parent 53d0422c2d
commit c467307c1a
1 changed files with 21 additions and 25 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

46
include/trace/events/irq.h
View File

@ -82,18 +82,7 @@ TRACE_EVENT(irq_handler_exit,
__entry->irq, __entry->ret ? "handled" : "unhandled")
);
/**
* softirq_entry - called immediately before the softirq handler
* @h: pointer to struct softirq_action
* @vec: pointer to first struct softirq_action in softirq_vec array
*
* The @h parameter, contains a pointer to the struct softirq_action
* which has a pointer to the action handler that is called. By subtracting
* the @vec pointer from the @h pointer, we can determine the softirq
* number. Also, when used in combination with the softirq_exit tracepoint
* we can determine the softirq latency.
*/
TRACE_EVENT(softirq_entry,
DECLARE_EVENT_CLASS(softirq,
TP_PROTO(struct softirq_action *h, struct softirq_action *vec),
@ -111,6 +100,24 @@ TRACE_EVENT(softirq_entry,
show_softirq_name(__entry->vec))
);
/**
* softirq_entry - called immediately before the softirq handler
* @h: pointer to struct softirq_action
* @vec: pointer to first struct softirq_action in softirq_vec array
*
* The @h parameter, contains a pointer to the struct softirq_action
* which has a pointer to the action handler that is called. By subtracting
* the @vec pointer from the @h pointer, we can determine the softirq
* number. Also, when used in combination with the softirq_exit tracepoint
* we can determine the softirq latency.
*/
DEFINE_EVENT(softirq, softirq_entry,
TP_PROTO(struct softirq_action *h, struct softirq_action *vec),
TP_ARGS(h, vec)
);
/**
* softirq_exit - called immediately after the softirq handler returns
* @h: pointer to struct softirq_action
@ -122,22 +129,11 @@ TRACE_EVENT(softirq_entry,
* combination with the softirq_entry tracepoint we can determine the softirq
* latency.
*/
TRACE_EVENT(softirq_exit,
DEFINE_EVENT(softirq, softirq_exit,
TP_PROTO(struct softirq_action *h, struct softirq_action *vec),
TP_ARGS(h, vec),
TP_STRUCT__entry(
__field( int, vec )
),
TP_fast_assign(
__entry->vec = (int)(h - vec);
),
TP_printk("vec=%d [action=%s]", __entry->vec,
show_softirq_name(__entry->vec))
TP_ARGS(h, vec)
);
#endif /* _TRACE_IRQ_H */