linux-kernel - [PATCH 2/2] tracing: Export ftrace API for kernel modules

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Date:	Tue, 15 Sep 2009 19:06:32 +0900
From:	Atsushi Tsuji <a-tsuji@...jp.nec.com>
To:	linux-kernel@...r.kernel.org, rostedt@...dmis.org,
	Ingo Molnar <mingo@...e.hu>, fweisbec@...il.com,
	"Frank Ch. Eigler" <fche@...hat.com>
CC:	Peter Zijlstra <peterz@...radead.org>, paulus@...ba.org,
	systemtap@...rces.redhat.com
Subject: [PATCH 2/2] tracing: Export ftrace API for kernel modules

Export register_ and unresgister_ftrace_function_probe to modules. This can
be used by SystemTap.

Signed-off-by: Atsushi Tsuji <a-tsuji@...jp.nec.com>
---
 kernel/trace/ftrace.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index 5ef8f59..9c32291 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -2042,6 +2042,7 @@ register_ftrace_function_probe(char *glob, struct ftrace_probe_ops *ops,
 
 	return count;
 }
+EXPORT_SYMBOL_GPL(register_ftrace_function_probe);
 
 enum {
 	PROBE_TEST_FUNC		= 1,
@@ -2108,6 +2109,7 @@ unregister_ftrace_function_probe(char *glob, struct ftrace_probe_ops *ops,
 	__unregister_ftrace_function_probe(glob, ops, data,
 					  PROBE_TEST_FUNC | PROBE_TEST_DATA);
 }
+EXPORT_SYMBOL_GPL(unregister_ftrace_function_probe);
 
 void
 unregister_ftrace_function_probe_func(char *glob, struct ftrace_probe_ops *ops)
-- 
1.5.5.1




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