linux-kernel - [PATCH 1/4] tracing/events: don't say hi when loading the trace event sample

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Message-ID: <4A00F6AD.2070008@cn.fujitsu.com>
Date:	Wed, 06 May 2009 10:32:13 +0800
From:	Li Zefan <lizf@...fujitsu.com>
To:	Steven Rostedt <rostedt@...dmis.org>
CC:	Frederic Weisbecker <fweisbec@...il.com>,
	Ingo Molnar <mingo@...e.hu>,
	LKML <linux-kernel@...r.kernel.org>
Subject: [PATCH 1/4] tracing/events: don't say hi when loading the trace event
 sample

The sample is useful for testing, and I'm using it. But after
loading the module, it keeps saying hi every 10 seconds, this may
be disturbing.

Also Steven said commenting out the "hi" helped in causing races. :)

[ Impact: make testing a bit easier ]

Signed-off-by: Li Zefan <lizf@...fujitsu.com>
---
 samples/trace_events/trace-events-sample.c |    4 ----
 1 files changed, 0 insertions(+), 4 deletions(-)

diff --git a/samples/trace_events/trace-events-sample.c b/samples/trace_events/trace-events-sample.c
index f33b3ba..aabc4e9 100644
--- a/samples/trace_events/trace-events-sample.c
+++ b/samples/trace_events/trace-events-sample.c
@@ -16,10 +16,6 @@ static void simple_thread_func(int cnt)
 	set_current_state(TASK_INTERRUPTIBLE);
 	schedule_timeout(HZ);
 	trace_foo_bar("hello", cnt);
-
-	if (!(cnt % 10))
-		/* It is really important that I say "hi!" */
-		printk(KERN_EMERG "hi!\n");
 }
 
 static int simple_thread(void *arg)
-- 
1.5.4.rc3


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