ftrace: don't try to __ftrace_replace_code on !FTRACE_FL_CONVERTED rec

Do __ftrace_replace_code for !FTRACE_FL_CONVERTED rec will always
fail, we should ignore this rec.
Signed-off-by: Zhao Lei <zhaolei@cn.fujitsu.com>
Cc: "Steven Rostedt ;" <rostedt@goodmis.org>
LKML-Reference: <49BA2472.4060206@cn.fujitsu.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

kernel/trace/ftrace.c

@@ -532,11 +532,12 @@ static void ftrace_replace_code(int enable)
 
 	do_for_each_ftrace_rec(pg, rec) {
 		/*
-		 * Skip over free records and records that have
-		 * failed.
+		 * Skip over free records, records that have
+		 * failed and not converted.
 		 */
 		if (rec->flags & FTRACE_FL_FREE ||
-		    rec->flags & FTRACE_FL_FAILED)
+		    rec->flags & FTRACE_FL_FAILED ||
+		    rec->flags & FTRACE_FL_CONVERTED)
 			continue;
 
 		/* ignore updates to this record's mcount site */
@@ -548,7 +549,7 @@ static void ftrace_replace_code(int enable)
 		}
 
 		failed = __ftrace_replace_code(rec, enable);
-		if (failed && (rec->flags & FTRACE_FL_CONVERTED)) {
+		if (failed) {
 			rec->flags |= FTRACE_FL_FAILED;
 			if ((system_state == SYSTEM_BOOTING) ||
 			    !core_kernel_text(rec->ip)) {