From: Lai Jiangshan <laijs@cn.fujitsu.com>
To: Steven Rostedt <srostedt@redhat.com>
Cc: Ingo Molnar <mingo@elte.hu>, LKML <linux-kernel@vger.kernel.org>,
Frederic Weisbecker <fweisbec@gmail.com>
Subject: [PATCH] tracing: mark get_parent_ip() notrace
Date: Thu, 02 Apr 2009 14:18:25 +0800 [thread overview]
Message-ID: <49D458B1.5000703@cn.fujitsu.com> (raw)
Impact: remove redundancy tracing log
When tracer is "function" or "function_graph", too much
"get_parent_ip" are recorded in ring_buffer.
Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
---
diff --git a/kernel/sched.c b/kernel/sched.c
index 706517c..a0ec10c 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -4860,7 +4860,7 @@ void scheduler_tick(void)
#endif
}
-unsigned long get_parent_ip(unsigned long addr)
+notrace unsigned long get_parent_ip(unsigned long addr)
{
if (in_lock_functions(addr)) {
addr = CALLER_ADDR2;
next reply other threads:[~2009-04-02 6:20 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-04-02 6:18 Lai Jiangshan [this message]
2009-04-02 12:26 ` [PATCH] tracing: mark get_parent_ip() notrace Frederic Weisbecker
2009-04-13 6:17 ` Lai Jiangshan
2009-04-13 14:43 ` Steven Rostedt
2009-04-14 0:11 ` Ingo Molnar
2009-04-14 0:13 ` [tip:sched/urgent] tracing, sched: " tip-bot for Lai Jiangshan
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