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Commit 2314c4ae authored by Steven Rostedt's avatar Steven Rostedt
Browse files

tracing: add back the available_events file 



The event directory files type and available_types were no longer
needed with the new TRACE_EVENT_FORMAT macros, they were deleted.
But by accident the available_events file was also removed.
This patch brings it back.

Reported-by: default avatarKOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: default avatarSteven Rostedt <srostedt@redhat.com>
parent 40e26815

kernel/trace/trace_events.c

+14 −0
Original line number Diff line number Diff line
@@ -428,6 +428,13 @@ static const struct seq_operations show_set_event_seq_ops = { 
	.stop = t_stop,

};



static const struct file_operations ftrace_avail_fops = {

	.open = ftrace_event_seq_open,

	.read = seq_read,

	.llseek = seq_lseek,

	.release = seq_release,

};



static const struct file_operations ftrace_set_event_fops = {

	.open = ftrace_event_seq_open,

	.read = seq_read,
@@ -569,6 +576,13 @@ static __init int event_trace_init(void) 
	if (!d_tracer)

		return 0;



	entry = debugfs_create_file("available_events", 0444, d_tracer,

				    (void *)&show_event_seq_ops,

				    &ftrace_avail_fops);

	if (!entry)

		pr_warning("Could not create debugfs "

			   "'available_events' entry\n");



	entry = debugfs_create_file("set_event", 0644, d_tracer,

				    (void *)&show_set_event_seq_ops,

				    &ftrace_set_event_fops);