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| author |   Steven Rostedt <srostedt@redhat.com> | 2009-03-10 12:04:02 -0400 |
|---|---|---|
| committer | Steven Rostedt <srostedt@redhat.com> | 2009-03-10 12:04:02 -0400 |
| commit | 2314c4ae1461c9e8b26cf8b9a851f280bc5769e1 (patch) | |
| tree | c6f55179012c6997f77fa523f542efdfd1104c24 | |
| parent | tracing: do not allow modifying the ftrace events via the event files (diff) | |
| download | linux-dev-2314c4ae1461c9e8b26cf8b9a851f280bc5769e1.tar.xz linux-dev-2314c4ae1461c9e8b26cf8b9a851f280bc5769e1.zip | |
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: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: Steven Rostedt <srostedt@redhat.com>
| -rw-r--r-- | kernel/trace/trace_events.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/kernel/trace/trace_events.c b/kernel/trace/trace_events.c index 85ec10fbb38d..769dfd00fc85 100644 --- a/kernel/trace/trace_events.c +++ b/kernel/trace/trace_events.c @@ -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); |