linux-kernel - [PATCH 09/40] tracing: move __start_ftrace_events and __stop_ftrace

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Date:	Wed, 23 Jun 2010 20:02:50 +1000
From:	"Ian Munsie" <imunsie@....ibm.com>
To:	linux-kernel@...r.kernel.org, linuxppc-dev@...abs.org
Cc:	Jason Baron <jbaron@...hat.com>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Steven Rostedt <rostedt@...dmis.org>,
	Ingo Molnar <mingo@...hat.com>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Paul Mackerras <paulus@...ba.org>,
	Michael Ellerman <michael@...erman.id.au>,
	Ian Munsie <imunsie@....ibm.com>, Ingo Molnar <mingo@...e.hu>,
	Li Zefan <lizf@...fujitsu.com>,
	Masami Hiramatsu <mhiramat@...hat.com>
Subject: [PATCH 09/40] tracing: move __start_ftrace_events and __stop_ftrace_events to header file

From: Jason Baron <jbaron@...hat.com>

trace_syscalls.c uses __start_ftrace_events and __stop_ftrace_events in order
to prune compat syscall ftrace events that are not referenced by the compat
syscall table. So move the 'extern' definitions to a common header file.

Signed-off-by: Jason Baron <jbaron@...hat.com>
Signed-off-by: Ian Munsie <imunsie@....ibm.com>
---
 include/linux/ftrace_event.h |    3 +++
 kernel/trace/trace_events.c  |    3 ---
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/include/linux/ftrace_event.h b/include/linux/ftrace_event.h
index 0af31cd..54b020b 100644
--- a/include/linux/ftrace_event.h
+++ b/include/linux/ftrace_event.h
@@ -189,6 +189,9 @@ struct ftrace_event_call {
 #endif
 };
 
+extern struct ftrace_event_call __start_ftrace_events[];
+extern struct ftrace_event_call __stop_ftrace_events[];
+
 #define PERF_MAX_TRACE_SIZE	2048
 
 #define MAX_FILTER_PRED		32
diff --git a/kernel/trace/trace_events.c b/kernel/trace/trace_events.c
index a594f9a..b03f82f 100644
--- a/kernel/trace/trace_events.c
+++ b/kernel/trace/trace_events.c
@@ -1260,9 +1260,6 @@ static struct notifier_block trace_module_nb = {
 	.priority = 0,
 };
 
-extern struct ftrace_event_call __start_ftrace_events[];
-extern struct ftrace_event_call __stop_ftrace_events[];
-
 static char bootup_event_buf[COMMAND_LINE_SIZE] __initdata;
 
 static __init int setup_trace_event(char *str)
-- 
1.7.1

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