commit 17c873ec280a03894bc718af817f7f24fa787ae1
author Steven Rostedt <srostedt@redhat.com> Fri Apr 10 18:12:50 2009 -0400
committer Steven Rostedt <rostedt@goodmis.org> Tue Apr 14 12:58:01 2009 -0400
tree 3acdcd41c2b80c207932625cc5e132056954d803
parent a59fd6027218bd7c994e39d14afe0242f895144f

tracing/events: add export symbols for trace events in modules

Impact: let modules add trace events

The trace event code requires some functions to be exported to allow
modules to use TRACE_EVENT. This patch adds EXPORT_SYMBOL_GPL to the
necessary functions.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>

kernel/trace/trace.c

diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index c0047fc..2d69b26 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -176,6 +176,7 @@
 {
 	return filter_check_discard(call, rec, global_trace.buffer, event);
 }
+EXPORT_SYMBOL_GPL(filter_current_check_discard);
 
 cycle_t ftrace_now(int cpu)
 {
@@ -886,6 +887,7 @@
 	return trace_buffer_lock_reserve(&global_trace,
 					 type, len, flags, pc);
 }
+EXPORT_SYMBOL(trace_current_buffer_lock_reserve);
 
 void trace_current_buffer_unlock_commit(struct ring_buffer_event *event,
 					unsigned long flags, int pc)
@@ -903,6 +905,7 @@
 {
 	ring_buffer_discard_commit(global_trace.buffer, event);
 }
+EXPORT_SYMBOL_GPL(trace_nowake_buffer_unlock_commit);
 
 void
 trace_function(struct trace_array *tr,

kernel/trace/trace_events.c

diff --git a/kernel/trace/trace_events.c b/kernel/trace/trace_events.c
index 5c66aaf..8b9e621 100644
--- a/kernel/trace/trace_events.c
+++ b/kernel/trace/trace_events.c
@@ -53,6 +53,7 @@
 
 	return -ENOMEM;
 }
+EXPORT_SYMBOL_GPL(trace_define_field);
 
 static void ftrace_clear_events(void)
 {

kernel/trace/trace_events_filter.c

diff --git a/kernel/trace/trace_events_filter.c b/kernel/trace/trace_events_filter.c
index d30b06b..f8e5eab 100644
--- a/kernel/trace/trace_events_filter.c
+++ b/kernel/trace/trace_events_filter.c
@@ -110,6 +110,7 @@
 
 	return 1;
 }
+EXPORT_SYMBOL_GPL(filter_match_preds);
 
 void filter_print_preds(struct filter_pred **preds, int n_preds,
 			struct trace_seq *s)
@@ -220,6 +221,7 @@
 
 	return -ENOMEM;
 }
+EXPORT_SYMBOL_GPL(init_preds);
 
 void filter_free_subsystem_preds(struct event_subsystem *system)
 {

kernel/trace/trace_output.c

diff --git a/kernel/trace/trace_output.c b/kernel/trace/trace_output.c
index 0e70fb0..83a8abb 100644
--- a/kernel/trace/trace_output.c
+++ b/kernel/trace/trace_output.c
@@ -94,6 +94,7 @@
 
 	return len;
 }
+EXPORT_SYMBOL_GPL(trace_seq_printf);
 
 int trace_seq_bprintf(struct trace_seq *s, const char *fmt, const u32 *binary)
 {
@@ -538,6 +539,7 @@
 
 	return ret;
 }
+EXPORT_SYMBOL_GPL(register_ftrace_event);
 
 /**
  * unregister_ftrace_event - remove a no longer used event
@@ -551,6 +553,7 @@
 
 	return 0;
 }
+EXPORT_SYMBOL_GPL(unregister_ftrace_event);
 
 /*
  * Standard events