From: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Date: Mon, 12 May 2008 19:20:41 +0000 (+0200)
Subject: ftrace: annotate core code that should not be traced
X-Git-Tag: tip-tracing-sysprof-2008-06-16_09.17_Mon~152
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=6e766410c4babd37bc7cd5e25009c179781742c8;p=users%2Fdwmw2%2Flinux.git

ftrace: annotate core code that should not be traced

Mark with "notrace" functions in core code that should not be
traced.  The "notrace" attribute will prevent gcc from adding
a call to ftrace on the annotated funtions.

Signed-off-by: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---

diff --git a/lib/smp_processor_id.c b/lib/smp_processor_id.c
index 6c90fb90e19c2..e555ab62fbadd 100644
--- a/lib/smp_processor_id.c
+++ b/lib/smp_processor_id.c
@@ -7,7 +7,7 @@
 #include <linux/kallsyms.h>
 #include <linux/sched.h>
 
-unsigned int debug_smp_processor_id(void)
+notrace unsigned int debug_smp_processor_id(void)
 {
 	unsigned long preempt_count = preempt_count();
 	int this_cpu = raw_smp_processor_id();