From: Ingo Molnar <mingo@elte.hu>
To: linux-kernel@vger.kernel.org
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
Andrew Morton <akpm@zip.com.au>,
Steven Rostedt <rostedt@goodmis.org>
Subject: [08/19] ftrace: annotate core code that should not be traced
Date: Sun, 10 Feb 2008 08:20:26 +0100 [thread overview]
Message-ID: <20080210072026.GI4100@elte.hu> (raw)
From: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
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>
---
lib/smp_processor_id.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
Index: linux/lib/smp_processor_id.c
===================================================================
--- linux.orig/lib/smp_processor_id.c
+++ linux/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();
reply other threads:[~2008-02-10 7:23 UTC|newest]
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