ftrace: event profile hooks

Impact: new tracing infrastructure feature

Provide infrastructure to generate software perf counter events
from tracepoints.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
LKML-Reference: <20090319194233.557364871@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 2 insertions, 7 deletions

diff --git a/kernel/trace/trace_events.c b/kernel/trace/trace_events.c
index 7763db8fd0b3..3047b56f6637 100644
--- a/kernel/trace/trace_events.c
+++ b/kernel/trace/trace_events.c
@@ -19,11 +19,6 @@
 
 static DEFINE_MUTEX(event_mutex);
 
-#define events_for_each(event)                                          \
-        for (event = __start_ftrace_events;                             \
-             (unsigned long)event < (unsigned long)__stop_ftrace_events; \
-             event++)
-
 static void ftrace_clear_events(void)
 {
         struct ftrace_event_call *call = (void *)__start_ftrace_events;
@@ -90,7 +85,7 @@ static int ftrace_set_clr_event(char *buf, int set)
         }
 
         mutex_lock(&event_mutex);
-        events_for_each(call) {
+        for_each_event(call) {
 
                 if (!call->name || !call->regfunc)
                         continue;
@@ -628,7 +623,7 @@ static __init int event_trace_init(void)
         if (!d_events)
                 return 0;
 
-        events_for_each(call) {
+        for_each_event(call) {
                 /* The linker may leave blanks */
                 if (!call->name)
                         continue;