tracing: Fix clear of RECORDED_TGID flag when disabling trace event
authorChunyu Hu <[email protected]>
Tue, 5 Sep 2017 05:36:46 +0000 (13:36 +0800)
committerSteven Rostedt (VMware) <[email protected]>
Tue, 5 Sep 2017 16:00:09 +0000 (12:00 -0400)
When disabling one trace event, the RECORDED_TGID flag in the event
file is not correctly cleared. It's clearing RECORDED_CMD flag when
it should clear RECORDED_TGID flag.

Link: http://lkml.kernel.org/r/[email protected]
Cc: Joel Fernandes <[email protected]>
Cc: [email protected]
Fixes: d914ba37d7 ("tracing: Add support for recording tgid of tasks")
Signed-off-by: Chunyu Hu <[email protected]>
Signed-off-by: Steven Rostedt (VMware) <[email protected]>
kernel/trace/trace_events.c

index c93540c5df21aa71003819e191283e48d10065d3..87468398b9ed6206722db4126cc6c6318580e357 100644 (file)
@@ -406,7 +406,7 @@ static int __ftrace_event_enable_disable(struct trace_event_file *file,
 
                        if (file->flags & EVENT_FILE_FL_RECORDED_TGID) {
                                tracing_stop_tgid_record();
-                               clear_bit(EVENT_FILE_FL_RECORDED_CMD_BIT, &file->flags);
+                               clear_bit(EVENT_FILE_FL_RECORDED_TGID_BIT, &file->flags);
                        }
 
                        call->class->reg(call, TRACE_REG_UNREGISTER, file);