tracing: Rename ftrace_event_buffer to trace_event_buffer.

The name "ftrace" really refers to the function hook infrastructure. It
is not about the trace_events. The ftrace_event_buffer functions and data
structures are for trace_events and not for function hooks. Rename them
to trace_event_buffer*.

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

include/linux/trace_events.h

@@ -219,7 +219,7 @@ struct trace_event_class {
 extern int trace_event_reg(struct trace_event_call *event,
 			    enum trace_reg type, void *data);
 
-struct ftrace_event_buffer {
+struct trace_event_buffer {
 	struct ring_buffer		*buffer;
 	struct ring_buffer_event	*event;
 	struct trace_event_file		*trace_file;
@@ -228,11 +228,11 @@ struct ftrace_event_buffer {
 	int				pc;
 };
 
-void *ftrace_event_buffer_reserve(struct ftrace_event_buffer *fbuffer,
+void *trace_event_buffer_reserve(struct trace_event_buffer *fbuffer,
 				  struct trace_event_file *trace_file,
 				  unsigned long len);
 
-void ftrace_event_buffer_commit(struct ftrace_event_buffer *fbuffer);
+void trace_event_buffer_commit(struct trace_event_buffer *fbuffer);
 
 enum {
 	TRACE_EVENT_FL_FILTERED_BIT,

include/trace/perf.h

@@ -155,7 +155,7 @@ ftrace_raw_event_##call(void *__data, proto)				\
 {									\
 	struct trace_event_file *trace_file = __data;			\
 	struct ftrace_data_offsets_##call __maybe_unused __data_offsets;\
-	struct ftrace_event_buffer fbuffer;				\
+	struct trace_event_buffer fbuffer;				\
 	struct ftrace_raw_##call *entry;				\
 	int __data_size;						\
 									\
@@ -164,7 +164,7 @@ ftrace_raw_event_##call(void *__data, proto)				\
 									\
 	__data_size = ftrace_get_offsets_##call(&__data_offsets, args); \
 									\
-	entry = ftrace_event_buffer_reserve(&fbuffer, trace_file,	\
+	entry = trace_event_buffer_reserve(&fbuffer, trace_file,	\
 				 sizeof(*entry) + __data_size);		\
 									\
 	if (!entry)							\
@@ -174,7 +174,7 @@ ftrace_raw_event_##call(void *__data, proto)				\
 									\
 	{ assign; }							\
 									\
-	ftrace_event_buffer_commit(&fbuffer);				\
+	trace_event_buffer_commit(&fbuffer);				\
 }
 /*
  * The ftrace_test_probe is compiled out, it is only here as a build time check

kernel/trace/trace_events.c

@@ -190,9 +190,9 @@ int trace_event_raw_init(struct trace_event_call *call)
 }
 EXPORT_SYMBOL_GPL(trace_event_raw_init);
 
-void *ftrace_event_buffer_reserve(struct ftrace_event_buffer *fbuffer,
-				  struct trace_event_file *trace_file,
-				  unsigned long len)
+void *trace_event_buffer_reserve(struct trace_event_buffer *fbuffer,
+				 struct trace_event_file *trace_file,
+				 unsigned long len)
 {
 	struct trace_event_call *event_call = trace_file->event_call;
 
@@ -210,11 +210,11 @@ void *ftrace_event_buffer_reserve(struct ftrace_event_buffer *fbuffer,
 	fbuffer->entry = ring_buffer_event_data(fbuffer->event);
 	return fbuffer->entry;
 }
-EXPORT_SYMBOL_GPL(ftrace_event_buffer_reserve);
+EXPORT_SYMBOL_GPL(trace_event_buffer_reserve);
 
 static DEFINE_SPINLOCK(tracepoint_iter_lock);
 
-static void output_printk(struct ftrace_event_buffer *fbuffer)
+static void output_printk(struct trace_event_buffer *fbuffer)
 {
 	struct trace_event_call *event_call;
 	struct trace_event *event;
@@ -241,7 +241,7 @@ static void output_printk(struct ftrace_event_buffer *fbuffer)
 	spin_unlock_irqrestore(&tracepoint_iter_lock, flags);
 }
 
-void ftrace_event_buffer_commit(struct ftrace_event_buffer *fbuffer)
+void trace_event_buffer_commit(struct trace_event_buffer *fbuffer)
 {
 	if (tracepoint_printk)
 		output_printk(fbuffer);
@@ -250,7 +250,7 @@ void ftrace_event_buffer_commit(struct ftrace_event_buffer *fbuffer)
 				    fbuffer->event, fbuffer->entry,
 				    fbuffer->flags, fbuffer->pc);
 }
-EXPORT_SYMBOL_GPL(ftrace_event_buffer_commit);
+EXPORT_SYMBOL_GPL(trace_event_buffer_commit);
 
 int trace_event_reg(struct trace_event_call *call,
 		    enum trace_reg type, void *data)