ftrace: rename FTRACE to FUNCTION_TRACER

Due to confusion between the ftrace infrastructure and the gcc profiling
tracer "ftrace", this patch renames the config options from FTRACE to
FUNCTION_TRACER.  The other two names that are offspring from FTRACE
DYNAMIC_FTRACE and FTRACE_MCOUNT_RECORD will stay the same.

This patch was generated mostly by script, and partially by hand.

Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

7 files changed, 20 insertions, 19 deletions

diff --git a/kernel/trace/Kconfig b/kernel/trace/Kconfig
index 5866edbc2ed1..3533c583df47 100644
--- a/kernel/trace/Kconfig
+++ b/kernel/trace/Kconfig
@@ -1,11 +1,12 @@
 #
-# Architectures that offer an FTRACE implementation should select HAVE_FTRACE:
+# Architectures that offer an FUNCTION_TRACER implementation should
+#  select HAVE_FUNCTION_TRACER:
 #
 
 config NOP_TRACER
         bool
 
-config HAVE_FTRACE
+config HAVE_FUNCTION_TRACER
         bool
         select NOP_TRACER
 
@@ -28,9 +29,9 @@ config TRACING
         select STACKTRACE
         select TRACEPOINTS
 
-config FTRACE
+config FUNCTION_TRACER
         bool "Kernel Function Tracer"
-        depends on HAVE_FTRACE
+        depends on HAVE_FUNCTION_TRACER
         depends on DEBUG_KERNEL
         select FRAME_POINTER
         select TRACING
@@ -136,9 +137,9 @@ config BOOT_TRACER
 
 config STACK_TRACER
         bool "Trace max stack"
-        depends on HAVE_FTRACE
+        depends on HAVE_FUNCTION_TRACER
         depends on DEBUG_KERNEL
-        select FTRACE
+        select FUNCTION_TRACER
         select STACKTRACE
         help
           This special tracer records the maximum stack footprint of the
@@ -155,7 +156,7 @@ config STACK_TRACER
 
 config DYNAMIC_FTRACE
         bool "enable/disable ftrace tracepoints dynamically"
-        depends on FTRACE
+        depends on FUNCTION_TRACER
         depends on HAVE_DYNAMIC_FTRACE
         depends on DEBUG_KERNEL
         default y
@@ -165,7 +166,7 @@ config DYNAMIC_FTRACE
          with a No-Op instruction) as they are called. A table is
          created to dynamically enable them again.
 
-         This way a CONFIG_FTRACE kernel is slightly larger, but otherwise
+         This way a CONFIG_FUNCTION_TRACER kernel is slightly larger, but otherwise
          has native performance as long as no tracing is active.
 
          The changes to the code are done by a kernel thread that
diff --git a/kernel/trace/Makefile b/kernel/trace/Makefile
index a85dfba88ba0..c8228b1a49e9 100644
--- a/kernel/trace/Makefile
+++ b/kernel/trace/Makefile
@@ -1,7 +1,7 @@
 
 # Do not instrument the tracer itself:
 
-ifdef CONFIG_FTRACE
+ifdef CONFIG_FUNCTION_TRACER
 ORIG_CFLAGS := $(KBUILD_CFLAGS)
 KBUILD_CFLAGS = $(subst -pg,,$(ORIG_CFLAGS))
 
@@ -10,13 +10,13 @@ CFLAGS_trace_selftest_dynamic.o = -pg
 obj-y += trace_selftest_dynamic.o
 endif
 
-obj-$(CONFIG_FTRACE) += libftrace.o
+obj-$(CONFIG_FUNCTION_TRACER) += libftrace.o
 obj-$(CONFIG_RING_BUFFER) += ring_buffer.o
 
 obj-$(CONFIG_TRACING) += trace.o
 obj-$(CONFIG_CONTEXT_SWITCH_TRACER) += trace_sched_switch.o
 obj-$(CONFIG_SYSPROF_TRACER) += trace_sysprof.o
-obj-$(CONFIG_FTRACE) += trace_functions.o
+obj-$(CONFIG_FUNCTION_TRACER) += trace_functions.o
 obj-$(CONFIG_IRQSOFF_TRACER) += trace_irqsoff.o
 obj-$(CONFIG_PREEMPT_TRACER) += trace_irqsoff.o
 obj-$(CONFIG_SCHED_TRACER) += trace_sched_wakeup.o
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index d345d649d073..aeb2f2505bc5 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -851,7 +851,7 @@ ftrace_special(unsigned long arg1, unsigned long arg2, unsigned long arg3)
         preempt_enable_notrace();
 }
 
-#ifdef CONFIG_FTRACE
+#ifdef CONFIG_FUNCTION_TRACER
 static void
 function_trace_call(unsigned long ip, unsigned long parent_ip)
 {
diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h
index f1f99572cde7..6889ca48f1f1 100644
--- a/kernel/trace/trace.h
+++ b/kernel/trace/trace.h
@@ -335,7 +335,7 @@ void update_max_tr_single(struct trace_array *tr,
 
 extern cycle_t ftrace_now(int cpu);
 
-#ifdef CONFIG_FTRACE
+#ifdef CONFIG_FUNCTION_TRACER
 void tracing_start_function_trace(void);
 void tracing_stop_function_trace(void);
 #else
diff --git a/kernel/trace/trace_irqsoff.c b/kernel/trace/trace_irqsoff.c
index a7db7f040ae0..9c74071c10e0 100644
--- a/kernel/trace/trace_irqsoff.c
+++ b/kernel/trace/trace_irqsoff.c
@@ -63,7 +63,7 @@ irq_trace(void)
  */
 static __cacheline_aligned_in_smp       unsigned long max_sequence;
 
-#ifdef CONFIG_FTRACE
+#ifdef CONFIG_FUNCTION_TRACER
 /*
  * irqsoff uses its own tracer function to keep the overhead down:
  */
@@ -104,7 +104,7 @@ static struct ftrace_ops trace_ops __read_mostly =
 {
         .func = irqsoff_tracer_call,
 };
-#endif /* CONFIG_FTRACE */
+#endif /* CONFIG_FUNCTION_TRACER */
 
 /*
  * Should this new latency be reported/recorded?
diff --git a/kernel/trace/trace_sched_wakeup.c b/kernel/trace/trace_sched_wakeup.c
index fe4a252c2363..3ae93f16b565 100644
--- a/kernel/trace/trace_sched_wakeup.c
+++ b/kernel/trace/trace_sched_wakeup.c
@@ -31,7 +31,7 @@ static raw_spinlock_t wakeup_lock =
 
 static void __wakeup_reset(struct trace_array *tr);
 
-#ifdef CONFIG_FTRACE
+#ifdef CONFIG_FUNCTION_TRACER
 /*
  * irqsoff uses its own tracer function to keep the overhead down:
  */
@@ -96,7 +96,7 @@ static struct ftrace_ops trace_ops __read_mostly =
 {
         .func = wakeup_tracer_call,
 };
-#endif /* CONFIG_FTRACE */
+#endif /* CONFIG_FUNCTION_TRACER */
 
 /*
  * Should this new latency be reported/recorded?
diff --git a/kernel/trace/trace_selftest.c b/kernel/trace/trace_selftest.c
index 09cf230d7eca..95815d26a041 100644
--- a/kernel/trace/trace_selftest.c
+++ b/kernel/trace/trace_selftest.c
@@ -70,7 +70,7 @@ static int trace_test_buffer(struct trace_array *tr, unsigned long *count)
         return ret;
 }
 
-#ifdef CONFIG_FTRACE
+#ifdef CONFIG_FUNCTION_TRACER
 
 #ifdef CONFIG_DYNAMIC_FTRACE
 
@@ -226,7 +226,7 @@ trace_selftest_startup_function(struct tracer *trace, struct trace_array *tr)
 
         return ret;
 }
-#endif /* CONFIG_FTRACE */
+#endif /* CONFIG_FUNCTION_TRACER */
 
 #ifdef CONFIG_IRQSOFF_TRACER
 int