linux-kernel - [tip:sched/urgent] tracing, sched: mark get_parent

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Date:	Tue, 14 Apr 2009 00:13:04 GMT
From:	tip-bot for Lai Jiangshan <laijs@...fujitsu.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, hpa@...or.com, mingo@...hat.com,
	fweisbec@...il.com, srostedt@...hat.com, tglx@...utronix.de,
	laijs@...fujitsu.com, mingo@...e.hu
Subject: [tip:sched/urgent] tracing, sched: mark get_parent_ip() notrace

Commit-ID:  132380a06b24704fd6c9be55c44d4ef3972cead2
Gitweb:     http://git.kernel.org/tip/132380a06b24704fd6c9be55c44d4ef3972cead2
Author:     Lai Jiangshan <laijs@...fujitsu.com>
AuthorDate: Thu, 2 Apr 2009 14:18:25 +0800
Committer:  Ingo Molnar <mingo@...e.hu>
CommitDate: Tue, 14 Apr 2009 02:11:05 +0200

tracing, sched: mark get_parent_ip() notrace

Impact: remove overly redundant tracing entries

When tracer is "function" or "function_graph", way too much
"get_parent_ip" entries are recorded in ring_buffer.

Signed-off-by: Lai Jiangshan <laijs@...fujitsu.com>
Acked-by: Frederic Weisbecker <fweisbec@...il.com>
Acked-by: Steven Rostedt <srostedt@...hat.com>
LKML-Reference: <49D458B1.5000703@...fujitsu.com>
Signed-off-by: Ingo Molnar <mingo@...e.hu>


---
 kernel/sched.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/kernel/sched.c b/kernel/sched.c
index 5724508..e90e70e 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -4846,7 +4846,7 @@ 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;
--
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