3 files changed, 52 insertions, 5 deletions

diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h
index caba694a62b6..9d88e1cb5dbb 100644
--- a/include/linux/ftrace.h
+++ b/include/linux/ftrace.h
@@ -179,7 +179,12 @@ struct dyn_ftrace {
 };
 
 int ftrace_force_update(void);
-void ftrace_set_filter(unsigned char *buf, int len, int reset);
+void ftrace_set_filter(struct ftrace_ops *ops, unsigned char *buf,
+                       int len, int reset);
+void ftrace_set_notrace(struct ftrace_ops *ops, unsigned char *buf,
+                        int len, int reset);
+void ftrace_set_global_filter(unsigned char *buf, int len, int reset);
+void ftrace_set_global_notrace(unsigned char *buf, int len, int reset);
 
 int register_ftrace_command(struct ftrace_func_command *cmd);
 int unregister_ftrace_command(struct ftrace_func_command *cmd);
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index 5b3ee04e39d9..d017c2c82c44 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -2826,6 +2826,10 @@ ftrace_set_regex(struct ftrace_ops *ops, unsigned char *buf, int len,
         struct ftrace_hash *hash;
         int ret;
 
+        /* All global ops uses the global ops filters */
+        if (ops->flags & FTRACE_OPS_FL_GLOBAL)
+                ops = &global_ops;
+
         if (unlikely(ftrace_disabled))
                 return -ENODEV;
 
@@ -2856,6 +2860,41 @@ ftrace_set_regex(struct ftrace_ops *ops, unsigned char *buf, int len,
 
 /**
  * ftrace_set_filter - set a function to filter on in ftrace
+ * @ops - the ops to set the filter with
+ * @buf - the string that holds the function filter text.
+ * @len - the length of the string.
+ * @reset - non zero to reset all filters before applying this filter.
+ *
+ * Filters denote which functions should be enabled when tracing is enabled.
+ * If @buf is NULL and reset is set, all functions will be enabled for tracing.
+ */
+void ftrace_set_filter(struct ftrace_ops *ops, unsigned char *buf,
+                       int len, int reset)
+{
+        ftrace_set_regex(ops, buf, len, reset, 1);
+}
+EXPORT_SYMBOL_GPL(ftrace_set_filter);
+
+/**
+ * ftrace_set_notrace - set a function to not trace in ftrace
+ * @ops - the ops to set the notrace filter with
+ * @buf - the string that holds the function notrace text.
+ * @len - the length of the string.
+ * @reset - non zero to reset all filters before applying this filter.
+ *
+ * Notrace Filters denote which functions should not be enabled when tracing
+ * is enabled. If @buf is NULL and reset is set, all functions will be enabled
+ * for tracing.
+ */
+void ftrace_set_notrace(struct ftrace_ops *ops, unsigned char *buf,
+                        int len, int reset)
+{
+        ftrace_set_regex(ops, buf, len, reset, 0);
+}
+EXPORT_SYMBOL_GPL(ftrace_set_notrace);
+/**
+ * ftrace_set_filter - set a function to filter on in ftrace
+ * @ops - the ops to set the filter with
  * @buf - the string that holds the function filter text.
  * @len - the length of the string.
  * @reset - non zero to reset all filters before applying this filter.
@@ -2863,13 +2902,15 @@ ftrace_set_regex(struct ftrace_ops *ops, unsigned char *buf, int len,
  * Filters denote which functions should be enabled when tracing is enabled.
  * If @buf is NULL and reset is set, all functions will be enabled for tracing.
  */
-void ftrace_set_filter(unsigned char *buf, int len, int reset)
+void ftrace_set_global_filter(unsigned char *buf, int len, int reset)
 {
         ftrace_set_regex(&global_ops, buf, len, reset, 1);
 }
+EXPORT_SYMBOL_GPL(ftrace_set_global_filter);
 
 /**
  * ftrace_set_notrace - set a function to not trace in ftrace
+ * @ops - the ops to set the notrace filter with
  * @buf - the string that holds the function notrace text.
  * @len - the length of the string.
  * @reset - non zero to reset all filters before applying this filter.
@@ -2878,10 +2919,11 @@ void ftrace_set_filter(unsigned char *buf, int len, int reset)
  * is enabled. If @buf is NULL and reset is set, all functions will be enabled
  * for tracing.
  */
-void ftrace_set_notrace(unsigned char *buf, int len, int reset)
+void ftrace_set_global_notrace(unsigned char *buf, int len, int reset)
 {
         ftrace_set_regex(&global_ops, buf, len, reset, 0);
 }
+EXPORT_SYMBOL_GPL(ftrace_set_global_notrace);
 
 /*
  * command line interface to allow users to set filters on boot up.
diff --git a/kernel/trace/trace_selftest.c b/kernel/trace/trace_selftest.c
index 659732eba07c..0fa2db305b7c 100644
--- a/kernel/trace/trace_selftest.c
+++ b/kernel/trace/trace_selftest.c
@@ -131,7 +131,7 @@ int trace_selftest_startup_dynamic_tracing(struct tracer *trace,
         func_name = "*" __stringify(DYN_FTRACE_TEST_NAME);
 
         /* filter only on our function */
-        ftrace_set_filter(func_name, strlen(func_name), 1);
+        ftrace_set_global_filter(func_name, strlen(func_name), 1);
 
         /* enable tracing */
         ret = tracer_init(trace, tr);
@@ -181,7 +181,7 @@ int trace_selftest_startup_dynamic_tracing(struct tracer *trace,
         tracer_enabled = save_tracer_enabled;
 
         /* Enable tracing on all functions again */
-        ftrace_set_filter(NULL, 0, 1);
+        ftrace_set_global_filter(NULL, 0, 1);
 
         return ret;
 }