tracing: Fix set_ftrace_filter probe function display
commit1106b6997df7d0c0487e21fd9c9dd2ce3d4a52db
authorJiri Olsa <jolsa@redhat.com>
Wed, 16 Feb 2011 16:35:34 +0000 (16 17:35 +0100)
committerSteven Rostedt <rostedt@goodmis.org>
Tue, 22 Mar 2011 16:52:03 +0000 (22 12:52 -0400)
tree638a067a0d407948fb5362b794d8de397c6aa421
parent8df341cf251f3b77eaaef66f806570e74ab44452
tracing: Fix set_ftrace_filter probe function display

If one or more function probes (like traceon) are enabled,
and there's no other function filter, the first probe
func is skipped (which one depends on the position in the hash).

$ echo sys_open:traceon sys_close:traceon > ./set_ftrace_filter
$ cat set_ftrace_filter
#### all functions enabled ####
sys_close:traceon:unlimited
$

The reason was, that in the case of no other function filter,
the func_pos was not properly updated before calling t_hash_start.

Signed-off-by: Jiri Olsa <jolsa@redhat.com>
LKML-Reference: <1297874134-7008-1-git-send-email-jolsa@redhat.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
kernel/trace/ftrace.c