diff options
| author | Steven Rostedt <srostedt@redhat.com> | 2009-05-08 16:27:41 -0400 |
|---|---|---|
| committer | Steven Rostedt <rostedt@goodmis.org> | 2009-05-08 16:30:26 -0400 |
| commit | 4671c79408a3f8a5a6a45e39c4c164dada3a5678 (patch) | |
| tree | c8cc041841afe9d2c1be14a2410c1f468b7477be /kernel | |
| parent | 29f93943d1916d1a3faa3f10f4a06994347ac990 (diff) | |
tracing: add trace_set_clr_event to export event enabling function
Other parts of the kernel may need to be able to enable or disable
specific events. Especially parts that create trace events.
[ Impact: allow enabling of trace events by those that create the event ]
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/trace/trace_events.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/kernel/trace/trace_events.c b/kernel/trace/trace_events.c index 2eecb87e42d..0eec0c55dd8 100644 --- a/kernel/trace/trace_events.c +++ b/kernel/trace/trace_events.c @@ -177,6 +177,23 @@ static int ftrace_set_clr_event(char *buf, int set) return __ftrace_set_clr_event(match, sub, event, set); } +/** + * trace_set_clr_event - enable or disable an event + * @system: system name to match (NULL for any system) + * @event: event name to match (NULL for all events, within system) + * @set: 1 to enable, 0 to disable + * + * This is a way for other parts of the kernel to enable or disable + * event recording. + * + * Returns 0 on success, -EINVAL if the parameters do not match any + * registered events. + */ +int trace_set_clr_event(const char *system, const char *event, int set) +{ + return __ftrace_set_clr_event(NULL, system, event, set); +} + /* 128 should be much more than enough */ #define EVENT_BUF_SIZE 127 |