linux-kernel - [PATCH] tracing: annotate emit_log

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Message-ID: <alpine.LFD.2.00.0905271657340.3397@localhost.localdomain>
Date:	Wed, 27 May 2009 17:00:44 +0200 (CEST)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	LKML <linux-kernel@...r.kernel.org>
cc:	Steven Rostedt <rostedt@...dmis.org>,
	Frederic Weisbecker <fweisbec@...il.com>
Subject: [PATCH] tracing: annotate emit_log_char() notrace

printk calls emit_log_char() in a loop which is cluttering the trace
buffer. Make it notrace.

Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
---
 kernel/printk.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Index: linux-2.6-tip/kernel/printk.c
===================================================================
--- linux-2.6-tip.orig/kernel/printk.c
+++ linux-2.6-tip/kernel/printk.c
@@ -499,7 +499,7 @@ static void call_console_drivers(unsigne
 	_call_console_drivers(start_print, end, msg_level);
 }
 
-static void emit_log_char(char c)
+static void notrace emit_log_char(char c)
 {
 	LOG_BUF(log_end) = c;
 	log_end++;
--
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