1 files changed, 29 insertions, 15 deletions

diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h
index 405cb850b75d..acef8b4636f0 100644
--- a/kernel/trace/trace.h
+++ b/kernel/trace/trace.h
@@ -483,10 +483,6 @@ static inline int ftrace_graph_addr(unsigned long addr)
         return 0;
 }
 #else
-static inline int ftrace_trace_addr(unsigned long addr)
-{
-        return 1;
-}
 static inline int ftrace_graph_addr(unsigned long addr)
 {
         return 1;
@@ -500,12 +496,12 @@ print_graph_function(struct trace_iterator *iter)
 }
 #endif /* CONFIG_FUNCTION_GRAPH_TRACER */
 
-extern struct pid *ftrace_pid_trace;
+extern struct list_head ftrace_pids;
 
 #ifdef CONFIG_FUNCTION_TRACER
 static inline int ftrace_trace_task(struct task_struct *task)
 {
-        if (!ftrace_pid_trace)
+        if (list_empty(&ftrace_pids))
                 return 1;
 
         return test_tsk_trace_trace(task);
@@ -699,22 +695,40 @@ struct event_subsystem {
 };
 
 struct filter_pred;
+struct regex;
 
 typedef int (*filter_pred_fn_t) (struct filter_pred *pred, void *event,
                                  int val1, int val2);
 
+typedef int (*regex_match_func)(char *str, struct regex *r, int len);
+
+enum regex_type {
+        MATCH_FULL,
+        MATCH_FRONT_ONLY,
+        MATCH_MIDDLE_ONLY,
+        MATCH_END_ONLY,
+};
+
+struct regex {
+        char                    pattern[MAX_FILTER_STR_VAL];
+        int                     len;
+        int                     field_len;
+        regex_match_func        match;
+};
+
 struct filter_pred {
-        filter_pred_fn_t fn;
-        u64 val;
-        char str_val[MAX_FILTER_STR_VAL];
-        int str_len;
-        char *field_name;
-        int offset;
-        int not;
-        int op;
-        int pop_n;
+        filter_pred_fn_t        fn;
+        u64                     val;
+        struct regex            regex;
+        char                    *field_name;
+        int                     offset;
+        int                     not;
+        int                     op;
+        int                     pop_n;
 };
 
+extern enum regex_type
+filter_parse_regex(char *buff, int len, char **search, int *not);
 extern void print_event_filter(struct ftrace_event_call *call,
                                struct trace_seq *s);
 extern int apply_event_filter(struct ftrace_event_call *call,