From: Steven Rostedt The functions used to implement the TRACE_EVENT macro show up in function tracing. This is considered a distraction, and these should not be displayed. For example: -0 [000] 57.202149: task_of <-update_stats_wait_end -0 [000] 57.202149: ftrace_raw_event_sched_stat_wait <-update_stats_wait_end -0 [000] 57.202150: ftrace_raw_event_id_sched_stat_template <-ftrace_raw_event_sched_stat_wait -0 [000] 57.202150: sched_stat_wait: comm=sshd pid=2735 delay=19207 [ns] The "ftrace_raw_event_*" traces are just the utility functions used by TRACE_EVENT tracepoints. Cc: Thomas Gleixner Requested-by: Peter Zijlstra Signed-off-by: Steven Rostedt --- include/trace/ftrace.h | 31 ++++++++++++++++++------------- 1 files changed, 18 insertions(+), 13 deletions(-) diff --git a/include/trace/ftrace.h b/include/trace/ftrace.h index df65b99..09fd9af 100644 --- a/include/trace/ftrace.h +++ b/include/trace/ftrace.h @@ -199,7 +199,7 @@ #undef DECLARE_EVENT_CLASS #define DECLARE_EVENT_CLASS(call, proto, args, tstruct, assign, print) \ -static enum print_line_t \ +static notrace enum print_line_t \ ftrace_raw_output_id_##call(int event_id, const char *name, \ struct trace_iterator *iter, int flags) \ { \ @@ -232,7 +232,7 @@ ftrace_raw_output_id_##call(int event_id, const char *name, \ #undef DEFINE_EVENT #define DEFINE_EVENT(template, name, proto, args) \ -static enum print_line_t \ +static notrace enum print_line_t \ ftrace_raw_output_##name(struct trace_iterator *iter, int flags) \ { \ return ftrace_raw_output_id_##template(event_##name.id, \ @@ -241,7 +241,7 @@ ftrace_raw_output_##name(struct trace_iterator *iter, int flags) \ #undef DEFINE_EVENT_PRINT #define DEFINE_EVENT_PRINT(template, call, proto, args, print) \ -static enum print_line_t \ +static notrace enum print_line_t \ ftrace_raw_output_##call(struct trace_iterator *iter, int flags) \ { \ struct trace_seq *s = &iter->seq; \ @@ -307,7 +307,7 @@ ftrace_raw_output_##call(struct trace_iterator *iter, int flags) \ #undef DECLARE_EVENT_CLASS #define DECLARE_EVENT_CLASS(call, proto, args, tstruct, func, print) \ -static int \ +static int notrace \ ftrace_define_fields_##call(struct ftrace_event_call *event_call) \ { \ struct ftrace_raw_##call field; \ @@ -355,7 +355,7 @@ ftrace_define_fields_##call(struct ftrace_event_call *event_call) \ #undef DECLARE_EVENT_CLASS #define DECLARE_EVENT_CLASS(call, proto, args, tstruct, assign, print) \ -static inline int ftrace_get_offsets_##call( \ +static inline notrace int ftrace_get_offsets_##call( \ struct ftrace_data_offsets_##call *__data_offsets, proto) \ { \ int __data_size = 0; \ @@ -402,12 +402,14 @@ static inline int ftrace_get_offsets_##call( \ \ static void ftrace_profile_##name(proto); \ \ -static int ftrace_profile_enable_##name(struct ftrace_event_call *unused)\ +static notrace int \ +ftrace_profile_enable_##name(struct ftrace_event_call *unused) \ { \ return register_trace_##name(ftrace_profile_##name); \ } \ \ -static void ftrace_profile_disable_##name(struct ftrace_event_call *unused)\ +static notrace void \ +ftrace_profile_disable_##name(struct ftrace_event_call *unused) \ { \ unregister_trace_##name(ftrace_profile_##name); \ } @@ -541,7 +543,8 @@ static void ftrace_profile_disable_##name(struct ftrace_event_call *unused)\ #undef DECLARE_EVENT_CLASS #define DECLARE_EVENT_CLASS(call, proto, args, tstruct, assign, print) \ \ -static void ftrace_raw_event_id_##call(struct ftrace_event_call *event_call, \ +static notrace void \ +ftrace_raw_event_id_##call(struct ftrace_event_call *event_call, \ proto) \ { \ struct ftrace_data_offsets_##call __maybe_unused __data_offsets;\ @@ -578,17 +581,19 @@ static void ftrace_raw_event_id_##call(struct ftrace_event_call *event_call, \ #undef DEFINE_EVENT #define DEFINE_EVENT(template, call, proto, args) \ \ -static void ftrace_raw_event_##call(proto) \ +static notrace void ftrace_raw_event_##call(proto) \ { \ ftrace_raw_event_id_##template(&event_##call, args); \ } \ \ -static int ftrace_raw_reg_event_##call(struct ftrace_event_call *unused)\ +static notrace int \ +ftrace_raw_reg_event_##call(struct ftrace_event_call *unused) \ { \ return register_trace_##call(ftrace_raw_event_##call); \ } \ \ -static void ftrace_raw_unreg_event_##call(struct ftrace_event_call *unused)\ +static notrace void \ +ftrace_raw_unreg_event_##call(struct ftrace_event_call *unused) \ { \ unregister_trace_##call(ftrace_raw_event_##call); \ } \ @@ -750,7 +755,7 @@ __attribute__((section("_ftrace_events"))) event_##call = { \ #undef DECLARE_EVENT_CLASS #define DECLARE_EVENT_CLASS(call, proto, args, tstruct, assign, print) \ -static void \ +static notrace void \ ftrace_profile_templ_##call(struct ftrace_event_call *event_call, \ proto) \ { \ @@ -820,7 +825,7 @@ end_recursion: \ #undef DEFINE_EVENT #define DEFINE_EVENT(template, call, proto, args) \ -static void ftrace_profile_##call(proto) \ +static notrace void ftrace_profile_##call(proto) \ { \ struct ftrace_event_call *event_call = &event_##call; \ \ -- 1.6.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/