[PATCH v4 5/6] rtla: Unconditionally clean any pre-existing filters for user-provided events
Valentin Schneider <[email protected]>
| Newsgroups | gmane.linux.kernel |
|---|---|
| Message-ID | <[email protected]> |
A later commit will apply a filter to events recorded to the trace output. To prevent any user confusion, remove pre-existing filters when enabling an event provided via the '-e' command line argument. Suggested-by: Tomas Glozar <[email protected]> Signed-off-by: Valentin Schneider <[email protected]> --- tools/tracing/rtla/src/trace.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/tools/tracing/rtla/src/trace.c b/tools/tracing/rtla/src/trace.c index e407447773d04..f67f02cc92cdd 100644 --- a/tools/tracing/rtla/src/trace.c +++ b/tools/tracing/rtla/src/trace.c @@ -473,6 +473,10 @@ static int trace_event_enable_filter(struct trace_instance *instance, char filter[MAX_PATH]; int retval; + /* Unconditionally clean any pre-existing filters */ + tracefs_event_file_write(instance->inst, tevent->system, + tevent->event, "filter", "0"); + if (!tevent->filter) return 0; -- 2.55.0