* [08/19] ftrace: annotate core code that should not be traced
@ 2008-02-10 7:20 Ingo Molnar
0 siblings, 0 replies; only message in thread
From: Ingo Molnar @ 2008-02-10 7:20 UTC (permalink / raw)
To: linux-kernel; +Cc: Linus Torvalds, Andrew Morton, Steven Rostedt
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();
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