ftrace: Allow for function tracing instance to filter functions

Create a "set_ftrace_filter" and "set_ftrace_notrace" files in the instance
directories to let users filter of functions to trace for the given instance.

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

1 files changed, 2 insertions, 0 deletions

diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h
index ef1607ed7044..e6141be2fad5 100644
--- a/include/linux/ftrace.h
+++ b/include/linux/ftrace.h
@@ -92,6 +92,7 @@ typedef void (*ftrace_func_t)(unsigned long ip, unsigned long parent_ip,
  * STUB   - The ftrace_ops is just a place holder.
  * INITIALIZED - The ftrace_ops has already been initialized (first use time
  *            register_ftrace_function() is called, it will initialized the ops)
+ * DELETED - The ops are being deleted, do not let them be registered again.
  */
 enum {
         FTRACE_OPS_FL_ENABLED                   = 1 << 0,
@@ -103,6 +104,7 @@ enum {
         FTRACE_OPS_FL_RECURSION_SAFE            = 1 << 6,
         FTRACE_OPS_FL_STUB                      = 1 << 7,
         FTRACE_OPS_FL_INITIALIZED               = 1 << 8,
+        FTRACE_OPS_FL_DELETED                   = 1 << 9,
 };
 
 /*