lkml.org 
[lkml]   [2018]   [May]   [14]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
Subject[PATCH v2 05/14] tracing: Do not show filter file for ftrace internal events
From: "Steven Rostedt (VMware)" <rostedt@goodmis.org>

The filter file in the ftrace internal events, like in
/sys/kernel/tracing/events/ftrace/function/filter is not attached to any
functionality. Do not create them as they are meaningless.

In the future, if an ftrace internal event gets filter functionality, then
it will need to create it directly.

Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
---
kernel/trace/trace_events.c | 10 ++++++----
1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/kernel/trace/trace_events.c b/kernel/trace/trace_events.c
index 5b647904a65b..14ff4ff3caab 100644
--- a/kernel/trace/trace_events.c
+++ b/kernel/trace/trace_events.c
@@ -2007,16 +2007,18 @@ event_create_dir(struct dentry *parent, struct trace_event_file *file)
return -1;
}
}
- trace_create_file("filter", 0644, file->dir, file,
- &ftrace_event_filter_fops);

/*
* Only event directories that can be enabled should have
- * triggers.
+ * triggers or filters.
*/
- if (!(call->flags & TRACE_EVENT_FL_IGNORE_ENABLE))
+ if (!(call->flags & TRACE_EVENT_FL_IGNORE_ENABLE)) {
+ trace_create_file("filter", 0644, file->dir, file,
+ &ftrace_event_filter_fops);
+
trace_create_file("trigger", 0644, file->dir, file,
&event_trigger_fops);
+ }

#ifdef CONFIG_HIST_TRIGGERS
trace_create_file("hist", 0444, file->dir, file,
--
2.17.0

\
 
 \ /
  Last update: 2018-05-14 23:07    [W:0.131 / U:0.288 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site