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Message-Id: <20150514151918.462965184@goodmis.org>
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Date: Thu, 14 May 2015 11:13:20 -0400
From: Steven Rostedt <rostedt@goodmis.org>
To: linux-kernel@vger.kernel.org
Cc: Ingo Molnar <mingo@kernel.org>, Andrew Morton <akpm@linux-foundation.org>,
        Peter Zijlstra <peterz@infradead.org>,
        Namhyung Kim <namhyung@kernel.org>,
        Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>,
        Arnaldo Carvalho de Melo <acme@kernel.org>,
        Jiri Olsa <jolsa@kernel.org>, Daniel Wagner <wagi@monom.org>
Subject: [RFC][PATCH 05/19] tracing: Rename (un)register_ftrace_event() to
 (un)register_trace_event()
References: <20150514151315.746637810@goodmis.org>
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From: "Steven Rostedt (Red Hat)" <rostedt@goodmis.org>

The name "ftrace" really refers to the function hook infrastructure. It
is not about the trace_events. The functions (un)register_ftrace_event() is
really about trace_events, and the name should be register_trace_event()
instead.

Also renamed ftrace_event_reg() to trace_event_reg() for the same reason.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 include/linux/trace_events.h         |  6 +++---
 include/trace/perf.h                 |  4 ++--
 kernel/trace/blktrace.c              |  4 ++--
 kernel/trace/trace_branch.c          |  2 +-
 kernel/trace/trace_events.c          | 10 +++++-----
 kernel/trace/trace_functions_graph.c |  4 ++--
 kernel/trace/trace_kprobe.c          |  4 ++--
 kernel/trace/trace_output.c          | 18 +++++++++---------
 kernel/trace/trace_output.h          |  2 +-
 kernel/trace/trace_uprobe.c          |  4 ++--
 10 files changed, 29 insertions(+), 29 deletions(-)

diff --git a/include/linux/trace_events.h b/include/linux/trace_events.h
index 29627cbafdea..99924c07a042 100644
--- a/include/linux/trace_events.h
+++ b/include/linux/trace_events.h
@@ -132,8 +132,8 @@ struct trace_event {
 	struct trace_event_functions	*funcs;
 };
 
-extern int register_ftrace_event(struct trace_event *event);
-extern int unregister_ftrace_event(struct trace_event *event);
+extern int register_trace_event(struct trace_event *event);
+extern int unregister_trace_event(struct trace_event *event);
 
 /* Return values for print_line callback */
 enum print_line_t {
@@ -216,7 +216,7 @@ struct ftrace_event_class {
 	int			(*raw_init)(struct ftrace_event_call *);
 };
 
-extern int ftrace_event_reg(struct ftrace_event_call *event,
+extern int trace_event_reg(struct ftrace_event_call *event,
 			    enum trace_reg type, void *data);
 
 struct ftrace_event_buffer {
diff --git a/include/trace/perf.h b/include/trace/perf.h
index 5e82add1647b..bb751a5975dd 100644
--- a/include/trace/perf.h
+++ b/include/trace/perf.h
@@ -69,7 +69,7 @@
  *	.fields			= LIST_HEAD_INIT(event_class_##call.fields),
  *	.raw_init		= trace_event_raw_init,
  *	.probe			= ftrace_raw_event_##call,
- *	.reg			= ftrace_event_reg,
+ *	.reg			= trace_event_reg,
  * };
  *
  * static struct ftrace_event_call event_<call> = {
@@ -219,7 +219,7 @@ static struct ftrace_event_class __used __refdata event_class_##call = { \
 	.fields			= LIST_HEAD_INIT(event_class_##call.fields),\
 	.raw_init		= trace_event_raw_init,			\
 	.probe			= ftrace_raw_event_##call,		\
-	.reg			= ftrace_event_reg,			\
+	.reg			= trace_event_reg,			\
 	_TRACE_PERF_INIT(call)						\
 };
 
diff --git a/kernel/trace/blktrace.c b/kernel/trace/blktrace.c
index 483cecfa5c17..4ba2b8ecc81c 100644
--- a/kernel/trace/blktrace.c
+++ b/kernel/trace/blktrace.c
@@ -1450,14 +1450,14 @@ static struct trace_event trace_blk_event = {
 
 static int __init init_blk_tracer(void)
 {
-	if (!register_ftrace_event(&trace_blk_event)) {
+	if (!register_trace_event(&trace_blk_event)) {
 		pr_warning("Warning: could not register block events\n");
 		return 1;
 	}
 
 	if (register_tracer(&blk_tracer) != 0) {
 		pr_warning("Warning: could not register the block tracer\n");
-		unregister_ftrace_event(&trace_blk_event);
+		unregister_trace_event(&trace_blk_event);
 		return 1;
 	}
 
diff --git a/kernel/trace/trace_branch.c b/kernel/trace/trace_branch.c
index 57cbf1efdd44..bdfcb44d5d4a 100644
--- a/kernel/trace/trace_branch.c
+++ b/kernel/trace/trace_branch.c
@@ -191,7 +191,7 @@ __init static int init_branch_tracer(void)
 {
 	int ret;
 
-	ret = register_ftrace_event(&trace_branch_event);
+	ret = register_trace_event(&trace_branch_event);
 	if (!ret) {
 		printk(KERN_WARNING "Warning: could not register "
 				    "branch events\n");
diff --git a/kernel/trace/trace_events.c b/kernel/trace/trace_events.c
index c4de47fc5cca..5fbb06c6c3ec 100644
--- a/kernel/trace/trace_events.c
+++ b/kernel/trace/trace_events.c
@@ -182,7 +182,7 @@ int trace_event_raw_init(struct ftrace_event_call *call)
 {
 	int id;
 
-	id = register_ftrace_event(&call->event);
+	id = register_trace_event(&call->event);
 	if (!id)
 		return -ENODEV;
 
@@ -252,8 +252,8 @@ void ftrace_event_buffer_commit(struct ftrace_event_buffer *fbuffer)
 }
 EXPORT_SYMBOL_GPL(ftrace_event_buffer_commit);
 
-int ftrace_event_reg(struct ftrace_event_call *call,
-		     enum trace_reg type, void *data)
+int trace_event_reg(struct ftrace_event_call *call,
+		    enum trace_reg type, void *data)
 {
 	struct ftrace_event_file *file = data;
 
@@ -288,7 +288,7 @@ int ftrace_event_reg(struct ftrace_event_call *call,
 	}
 	return 0;
 }
-EXPORT_SYMBOL_GPL(ftrace_event_reg);
+EXPORT_SYMBOL_GPL(trace_event_reg);
 
 void trace_event_enable_cmd_record(bool enable)
 {
@@ -1673,7 +1673,7 @@ static void event_remove(struct ftrace_event_call *call)
 	} while_for_each_event_file();
 
 	if (call->event.funcs)
-		__unregister_ftrace_event(&call->event);
+		__unregister_trace_event(&call->event);
 	remove_event_from_tracers(call);
 	list_del(&call->list);
 }
diff --git a/kernel/trace/trace_functions_graph.c b/kernel/trace/trace_functions_graph.c
index a51e79688455..32e76a21b8d4 100644
--- a/kernel/trace/trace_functions_graph.c
+++ b/kernel/trace/trace_functions_graph.c
@@ -1454,12 +1454,12 @@ static __init int init_graph_trace(void)
 {
 	max_bytes_for_cpu = snprintf(NULL, 0, "%d", nr_cpu_ids - 1);
 
-	if (!register_ftrace_event(&graph_trace_entry_event)) {
+	if (!register_trace_event(&graph_trace_entry_event)) {
 		pr_warning("Warning: could not register graph trace events\n");
 		return 1;
 	}
 
-	if (!register_ftrace_event(&graph_trace_ret_event)) {
+	if (!register_trace_event(&graph_trace_ret_event)) {
 		pr_warning("Warning: could not register graph trace events\n");
 		return 1;
 	}
diff --git a/kernel/trace/trace_kprobe.c b/kernel/trace/trace_kprobe.c
index d0ce590f06e1..59c35210a7e7 100644
--- a/kernel/trace/trace_kprobe.c
+++ b/kernel/trace/trace_kprobe.c
@@ -1290,7 +1290,7 @@ static int register_kprobe_event(struct trace_kprobe *tk)
 	}
 	if (set_print_fmt(&tk->tp, trace_kprobe_is_return(tk)) < 0)
 		return -ENOMEM;
-	ret = register_ftrace_event(&call->event);
+	ret = register_trace_event(&call->event);
 	if (!ret) {
 		kfree(call->print_fmt);
 		return -ENODEV;
@@ -1303,7 +1303,7 @@ static int register_kprobe_event(struct trace_kprobe *tk)
 		pr_info("Failed to register kprobe event: %s\n",
 			ftrace_event_name(call));
 		kfree(call->print_fmt);
-		unregister_ftrace_event(&call->event);
+		unregister_trace_event(&call->event);
 	}
 	return ret;
 }
diff --git a/kernel/trace/trace_output.c b/kernel/trace/trace_output.c
index 4243bf620a27..6469906e890d 100644
--- a/kernel/trace/trace_output.c
+++ b/kernel/trace/trace_output.c
@@ -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;
@@ -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);
diff --git a/kernel/trace/trace_output.h b/kernel/trace/trace_output.h
index 8ef2c40efb3c..4cbfe85b99c8 100644
--- a/kernel/trace/trace_output.h
+++ b/kernel/trace/trace_output.h
@@ -32,7 +32,7 @@ extern int
 trace_print_lat_fmt(struct trace_seq *s, struct trace_entry *entry);
 
 /* used by module unregistering */
-extern int __unregister_ftrace_event(struct trace_event *event);
+extern int __unregister_trace_event(struct trace_event *event);
 extern struct rw_semaphore trace_event_sem;
 
 #define SEQ_PUT_FIELD(s, x)				\
diff --git a/kernel/trace/trace_uprobe.c b/kernel/trace/trace_uprobe.c
index 6dd022c7b5bc..c8e45d8d6a92 100644
--- a/kernel/trace/trace_uprobe.c
+++ b/kernel/trace/trace_uprobe.c
@@ -1283,7 +1283,7 @@ static int register_uprobe_event(struct trace_uprobe *tu)
 	if (set_print_fmt(&tu->tp, is_ret_probe(tu)) < 0)
 		return -ENOMEM;
 
-	ret = register_ftrace_event(&call->event);
+	ret = register_trace_event(&call->event);
 	if (!ret) {
 		kfree(call->print_fmt);
 		return -ENODEV;
@@ -1297,7 +1297,7 @@ static int register_uprobe_event(struct trace_uprobe *tu)
 		pr_info("Failed to register uprobe event: %s\n",
 			ftrace_event_name(call));
 		kfree(call->print_fmt);
-		unregister_ftrace_event(&call->event);
+		unregister_trace_event(&call->event);
 	}
 
 	return ret;
-- 
2.1.4