Merge tag 'trace-v4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

Pull tracing updates from Steven Rostedt:
 "This patch series contains several clean ups and even a new trace
  clock "monitonic raw".  Also some enhancements to make the ring buffer
  even faster.  But the biggest and most noticeable change is the
  renaming of the ftrace* files, structures and variables that have to
  deal with trace events.

  Over the years I've had several developers tell me about their
  confusion with what ftrace is compared to events.  Technically,
  "ftrace" is the infrastructure to do the function hooks, which include
  tracing and also helps with live kernel patching.  But the trace
  events are a separate entity altogether, and the files that affect the
  trace events should not be named "ftrace".  These include:

    include/trace/ftrace.h         ->    include/trace/trace_events.h
    include/linux/ftrace_event.h   ->    include/linux/trace_events.h

  Also, functions that are specific for trace events have also been renamed:

    ftrace_print_*()               ->    trace_print_*()
    (un)register_ftrace_event()    ->    (un)register_trace_event()
    ftrace_event_name()            ->    trace_event_name()
    ftrace_trigger_soft_disabled() ->    trace_trigger_soft_disabled()
    ftrace_define_fields_##call()  ->    trace_define_fields_##call()
    ftrace_get_offsets_##call()    ->    trace_get_offsets_##call()

  Structures have been renamed:

    ftrace_event_file              ->    trace_event_file
    ftrace_event_{call,class}      ->    trace_event_{call,class}
    ftrace_event_buffer            ->    trace_event_buffer
    ftrace_subsystem_dir           ->    trace_subsystem_dir
    ftrace_event_raw_##call        ->    trace_event_raw_##call
    ftrace_event_data_offset_##call->    trace_event_data_offset_##call
    ftrace_event_type_funcs_##call ->    trace_event_type_funcs_##call

  And a few various variables and flags have also been updated.

  This has been sitting in linux-next for some time, and I have not
  heard a single complaint about this rename breaking anything.  Mostly
  because these functions, variables and structures are mostly internal
  to the tracing system and are seldom (if ever) used by anything
  external to that"

* tag 'trace-v4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (33 commits)
  ring_buffer: Allow to exit the ring buffer benchmark immediately
  ring-buffer-benchmark: Fix the wrong type
  ring-buffer-benchmark: Fix the wrong param in module_param
  ring-buffer: Add enum names for the context levels
  ring-buffer: Remove useless unused tracing_off_permanent()
  ring-buffer: Give NMIs a chance to lock the reader_lock
  ring-buffer: Add trace_recursive checks to ring_buffer_write()
  ring-buffer: Allways do the trace_recursive checks
  ring-buffer: Move recursive check to per_cpu descriptor
  ring-buffer: Add unlikelys to make fast path the default
  tracing: Rename ftrace_get_offsets_##call() to trace_event_get_offsets_##call()
  tracing: Rename ftrace_define_fields_##call() to trace_event_define_fields_##call()
  tracing: Rename ftrace_event_type_funcs_##call to trace_event_type_funcs_##call
  tracing: Rename ftrace_data_offset_##call to trace_event_data_offset_##call
  tracing: Rename ftrace_raw_##call event structures to trace_event_raw_##call
  tracing: Rename ftrace_trigger_soft_disabled() to trace_trigger_soft_disabled()
  tracing: Rename FTRACE_EVENT_FL_* flags to EVENT_FILE_FL_*
  tracing: Rename struct ftrace_subsystem_dir to trace_subsystem_dir
  tracing: Rename ftrace_event_name() to trace_event_name()
  tracing: Rename FTRACE_MAX_EVENT to TRACE_EVENT_TYPE_MAX
  ...

1 files changed, 39 insertions, 39 deletions

diff --git a/kernel/trace/trace_output.c b/kernel/trace/trace_output.c
index 25a086bcb700..dfab253727dc 100644
--- a/kernel/trace/trace_output.c
+++ b/kernel/trace/trace_output.c
@@ -60,9 +60,9 @@ enum print_line_t trace_print_printk_msg_only(struct trace_iterator *iter)
 }
 
 const char *
-ftrace_print_flags_seq(struct trace_seq *p, const char *delim,
-		       unsigned long flags,
-		       const struct trace_print_flags *flag_array)
+trace_print_flags_seq(struct trace_seq *p, const char *delim,
+		      unsigned long flags,
+		      const struct trace_print_flags *flag_array)
 {
 	unsigned long mask;
 	const char *str;
@@ -95,11 +95,11 @@ ftrace_print_flags_seq(struct trace_seq *p, const char *delim,
 
 	return ret;
 }
-EXPORT_SYMBOL(ftrace_print_flags_seq);
+EXPORT_SYMBOL(trace_print_flags_seq);
 
 const char *
-ftrace_print_symbols_seq(struct trace_seq *p, unsigned long val,
-			 const struct trace_print_flags *symbol_array)
+trace_print_symbols_seq(struct trace_seq *p, unsigned long val,
+			const struct trace_print_flags *symbol_array)
 {
 	int i;
 	const char *ret = trace_seq_buffer_ptr(p);
@@ -120,11 +120,11 @@ ftrace_print_symbols_seq(struct trace_seq *p, unsigned long val,
 
 	return ret;
 }
-EXPORT_SYMBOL(ftrace_print_symbols_seq);
+EXPORT_SYMBOL(trace_print_symbols_seq);
 
 #if BITS_PER_LONG == 32
 const char *
-ftrace_print_symbols_seq_u64(struct trace_seq *p, unsigned long long val,
+trace_print_symbols_seq_u64(struct trace_seq *p, unsigned long long val,
 			 const struct trace_print_flags_u64 *symbol_array)
 {
 	int i;
@@ -146,12 +146,12 @@ ftrace_print_symbols_seq_u64(struct trace_seq *p, unsigned long long val,
 
 	return ret;
 }
-EXPORT_SYMBOL(ftrace_print_symbols_seq_u64);
+EXPORT_SYMBOL(trace_print_symbols_seq_u64);
 #endif
 
 const char *
-ftrace_print_bitmask_seq(struct trace_seq *p, void *bitmask_ptr,
-			 unsigned int bitmask_size)
+trace_print_bitmask_seq(struct trace_seq *p, void *bitmask_ptr,
+			unsigned int bitmask_size)
 {
 	const char *ret = trace_seq_buffer_ptr(p);
 
@@ -160,10 +160,10 @@ ftrace_print_bitmask_seq(struct trace_seq *p, void *bitmask_ptr,
 
 	return ret;
 }
-EXPORT_SYMBOL_GPL(ftrace_print_bitmask_seq);
+EXPORT_SYMBOL_GPL(trace_print_bitmask_seq);
 
 const char *
-ftrace_print_hex_seq(struct trace_seq *p, const unsigned char *buf, int buf_len)
+trace_print_hex_seq(struct trace_seq *p, const unsigned char *buf, int buf_len)
 {
 	int i;
 	const char *ret = trace_seq_buffer_ptr(p);
@@ -175,11 +175,11 @@ ftrace_print_hex_seq(struct trace_seq *p, const unsigned char *buf, int buf_len)
 
 	return ret;
 }
-EXPORT_SYMBOL(ftrace_print_hex_seq);
+EXPORT_SYMBOL(trace_print_hex_seq);
 
 const char *
-ftrace_print_array_seq(struct trace_seq *p, const void *buf, int count,
-		       size_t el_size)
+trace_print_array_seq(struct trace_seq *p, const void *buf, int count,
+		      size_t el_size)
 {
 	const char *ret = trace_seq_buffer_ptr(p);
 	const char *prefix = "";
@@ -220,17 +220,17 @@ ftrace_print_array_seq(struct trace_seq *p, const void *buf, int count,
 
 	return ret;
 }
-EXPORT_SYMBOL(ftrace_print_array_seq);
+EXPORT_SYMBOL(trace_print_array_seq);
 
-int ftrace_raw_output_prep(struct trace_iterator *iter,
-			   struct trace_event *trace_event)
+int trace_raw_output_prep(struct trace_iterator *iter,
+			  struct trace_event *trace_event)
 {
-	struct ftrace_event_call *event;
+	struct trace_event_call *event;
 	struct trace_seq *s = &iter->seq;
 	struct trace_seq *p = &iter->tmp_seq;
 	struct trace_entry *entry;
 
-	event = container_of(trace_event, struct ftrace_event_call, event);
+	event = container_of(trace_event, struct trace_event_call, event);
 	entry = iter->ent;
 
 	if (entry->type != event->event.type) {
@@ -239,14 +239,14 @@ int ftrace_raw_output_prep(struct trace_iterator *iter,
 	}
 
 	trace_seq_init(p);
-	trace_seq_printf(s, "%s: ", ftrace_event_name(event));
+	trace_seq_printf(s, "%s: ", trace_event_name(event));
 
 	return trace_handle_return(s);
 }
-EXPORT_SYMBOL(ftrace_raw_output_prep);
+EXPORT_SYMBOL(trace_raw_output_prep);
 
-static int ftrace_output_raw(struct trace_iterator *iter, char *name,
-			     char *fmt, va_list ap)
+static int trace_output_raw(struct trace_iterator *iter, char *name,
+			    char *fmt, va_list ap)
 {
 	struct trace_seq *s = &iter->seq;
 
@@ -256,18 +256,18 @@ static int ftrace_output_raw(struct trace_iterator *iter, char *name,
 	return trace_handle_return(s);
 }
 
-int ftrace_output_call(struct trace_iterator *iter, char *name, char *fmt, ...)
+int trace_output_call(struct trace_iterator *iter, char *name, char *fmt, ...)
 {
 	va_list ap;
 	int ret;
 
 	va_start(ap, fmt);
-	ret = ftrace_output_raw(iter, name, fmt, ap);
+	ret = trace_output_raw(iter, name, fmt, ap);
 	va_end(ap);
 
 	return ret;
 }
-EXPORT_SYMBOL_GPL(ftrace_output_call);
+EXPORT_SYMBOL_GPL(trace_output_call);
 
 #ifdef CONFIG_KRETPROBES
 static inline const char *kretprobed(const char *name)
@@ -675,7 +675,7 @@ static int trace_search_list(struct list_head **list)
 	}
 
 	/* Did we used up all 65 thousand events??? */
-	if ((last + 1) > FTRACE_MAX_EVENT)
+	if ((last + 1) > TRACE_EVENT_TYPE_MAX)
 		return 0;
 
 	*list = &e->list;
@@ -693,7 +693,7 @@ void trace_event_read_unlock(void)
 }
 
 /**
- * register_ftrace_event - register output for an event type
+ * register_trace_event - register output for an event type
  * @event: the event type to register
  *
  * Event types are stored in a hash and this hash is used to
@@ -707,7 +707,7 @@ void trace_event_read_unlock(void)
  *
  * Returns the event type number or zero on error.
  */
-int register_ftrace_event(struct trace_event *event)
+int register_trace_event(struct trace_event *event)
 {
 	unsigned key;
 	int ret = 0;
@@ -725,7 +725,7 @@ int register_ftrace_event(struct trace_event *event)
 	if (!event->type) {
 		struct list_head *list = NULL;
 
-		if (next_event_type > FTRACE_MAX_EVENT) {
+		if (next_event_type > TRACE_EVENT_TYPE_MAX) {
 
 			event->type = trace_search_list(&list);
 			if (!event->type)
@@ -771,12 +771,12 @@ int register_ftrace_event(struct trace_event *event)
 
 	return ret;
 }
-EXPORT_SYMBOL_GPL(register_ftrace_event);
+EXPORT_SYMBOL_GPL(register_trace_event);
 
 /*
  * Used by module code with the trace_event_sem held for write.
  */
-int __unregister_ftrace_event(struct trace_event *event)
+int __unregister_trace_event(struct trace_event *event)
 {
 	hlist_del(&event->node);
 	list_del(&event->list);
@@ -784,18 +784,18 @@ int __unregister_ftrace_event(struct trace_event *event)
 }
 
 /**
- * unregister_ftrace_event - remove a no longer used event
+ * unregister_trace_event - remove a no longer used event
  * @event: the event to remove
  */
-int unregister_ftrace_event(struct trace_event *event)
+int unregister_trace_event(struct trace_event *event)
 {
 	down_write(&trace_event_sem);
-	__unregister_ftrace_event(event);
+	__unregister_trace_event(event);
 	up_write(&trace_event_sem);
 
 	return 0;
 }
-EXPORT_SYMBOL_GPL(unregister_ftrace_event);
+EXPORT_SYMBOL_GPL(unregister_trace_event);
 
 /*
  * Standard events
@@ -1243,7 +1243,7 @@ __init static int init_events(void)
 	for (i = 0; events[i]; i++) {
 		event = events[i];
 
-		ret = register_ftrace_event(event);
+		ret = register_trace_event(event);
 		if (!ret) {
 			printk(KERN_WARNING "event %d failed to register\n",
 			       event->type);