[PATCH 1/3] ftrace: do not show freed records in available_filter_functions

[Steven Rostedt <rostedt@goodmis.org>]

[-- Attachment #1: ftrace-dont-print-freed-recs.patch --]
[-- Type: text/plain, Size: 1243 bytes --]

Seems that freed records can appear in the available_filter_functions list.
This patch fixes that.

CC: Abhishek Sagar <sagar.abhishek@gmail.com>
Signed-off-by: Steven Rostedt <srostedt@redhat.com>
---
 kernel/trace/ftrace.c |   10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

Index: linux-tip.git/kernel/trace/ftrace.c
===================================================================
--- linux-tip.git.orig/kernel/trace/ftrace.c	2008-08-14 22:43:01.000000000 -0400
+++ linux-tip.git/kernel/trace/ftrace.c	2008-08-14 22:43:03.000000000 -0400
@@ -879,15 +879,13 @@ t_next(struct seq_file *m, void *v, loff
 		}
 	} else {
 		rec = &iter->pg->records[iter->idx++];
-		if ((!(iter->flags & FTRACE_ITER_FAILURES) &&
+		if ((rec->flags & FTRACE_FL_FREE) ||
+
+		    (!(iter->flags & FTRACE_ITER_FAILURES) &&
 		     (rec->flags & FTRACE_FL_FAILED)) ||
 
 		    ((iter->flags & FTRACE_ITER_FAILURES) &&
-		     (!(rec->flags & FTRACE_FL_FAILED) ||
-		      (rec->flags & FTRACE_FL_FREE))) ||
-
-		    ((iter->flags & FTRACE_ITER_FILTER) &&
-		     !(rec->flags & FTRACE_FL_FILTER)) ||
+		     !(rec->flags & FTRACE_FL_FAILED)) ||
 
 		    ((iter->flags & FTRACE_ITER_NOTRACE) &&
 		     !(rec->flags & FTRACE_FL_NOTRACE))) {

--