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From: Steven Rostedt on 31 Mar 2010 23:30
From: Li Zefan <lizf(a)cn.fujitsu.com>

Use DECLARE_EVENT_CLASS to remove duplicate code:

text data bss dec hex filename
23639 6084 8 29731 7423 kernel/signal.o.orig
22727 6084 8 28819 7093 kernel/signal.o

2 events are converted:

signal_queue_overflow: signal_overflow_fail, signal_lose_info

No functional change.

Acked-by: Masami Hiramatsu <mhiramat(a)redhat.com>
Signed-off-by: Li Zefan <lizf(a)cn.fujitsu.com>
LKML-Reference: <4BA97FBD.8070703(a)cn.fujitsu.com>
Signed-off-by: Steven Rostedt <rostedt(a)goodmis.org>
---
include/trace/events/signal.h | 52 +++++++++++++++++-----------------------
1 files changed, 22 insertions(+), 30 deletions(-)

diff --git a/include/trace/events/signal.h b/include/trace/events/signal.h
index a510b75..814566c 100644
--- a/include/trace/events/signal.h
+++ b/include/trace/events/signal.h
@@ -100,18 +100,7 @@ TRACE_EVENT(signal_deliver,
__entry->sa_handler, __entry->sa_flags)
);

-/**
- * signal_overflow_fail - called when signal queue is overflow
- * @sig: signal number
- * @group: signal to process group or not (bool)
- * @info: pointer to struct siginfo
- *
- * Kernel fails to generate 'sig' signal with 'info' siginfo, because
- * siginfo queue is overflow, and the signal is dropped.
- * 'group' is not 0 if the signal will be sent to a process group.
- * 'sig' is always one of RT signals.
- */
-TRACE_EVENT(signal_overflow_fail,
+DECLARE_EVENT_CLASS(signal_queue_overflow,

TP_PROTO(int sig, int group, struct siginfo *info),

@@ -135,6 +124,24 @@ TRACE_EVENT(signal_overflow_fail,
);

/**
+ * signal_overflow_fail - called when signal queue is overflow
+ * @sig: signal number
+ * @group: signal to process group or not (bool)
+ * @info: pointer to struct siginfo
+ *
+ * Kernel fails to generate 'sig' signal with 'info' siginfo, because
+ * siginfo queue is overflow, and the signal is dropped.
+ * 'group' is not 0 if the signal will be sent to a process group.
+ * 'sig' is always one of RT signals.
+ */
+DEFINE_EVENT(signal_queue_overflow, signal_overflow_fail,
+
+ TP_PROTO(int sig, int group, struct siginfo *info),
+
+ TP_ARGS(sig, group, info)
+);
+
+/**
* signal_lose_info - called when siginfo is lost
* @sig: signal number
* @group: signal to process group or not (bool)
@@ -145,28 +152,13 @@ TRACE_EVENT(signal_overflow_fail,
* 'group' is not 0 if the signal will be sent to a process group.
* 'sig' is always one of non-RT signals.
*/
-TRACE_EVENT(signal_lose_info,
+DEFINE_EVENT(signal_queue_overflow, signal_lose_info,

TP_PROTO(int sig, int group, struct siginfo *info),

- TP_ARGS(sig, group, info),
-
- TP_STRUCT__entry(
- __field( int, sig )
- __field( int, group )
- __field( int, errno )
- __field( int, code )
- ),
-
- TP_fast_assign(
- __entry->sig = sig;
- __entry->group = group;
- TP_STORE_SIGINFO(__entry, info);
- ),
-
- TP_printk("sig=%d group=%d errno=%d code=%d",
- __entry->sig, __entry->group, __entry->errno, __entry->code)
+ TP_ARGS(sig, group, info)
);
+
#endif /* _TRACE_SIGNAL_H */

/* This part must be outside protection */
--
1.7.0


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Prev: [PATCH 0/7] [GIT PULL] tracing: updates
Next: [PATCH -v4 1/2] nobootmem, x86: Fix 32bit numa system without RAM on Node0