tracing: Use a no_filter_buffering_ref to stop using the filter buffer
Currently, the trace histograms relies on it using absolute time stamps to trigger the tracing to not use the temp buffer if filters are set. That's because the histograms need the full timestamp that is saved in the ring buffer. That is no longer the case, as the ring_buffer_event_time_stamp() can now return the time stamp for all events without all triggering a full absolute time stamp. Now that the absolute time stamp is an unrelated dependency to not using the filters. There's nothing about having absolute timestamps to keep from using the filter buffer. Instead, change the interface to explicitly state to disable filter buffering that the histogram logic can use. Link: https://lkml.kernel.org/r/20210316164113.847886563@goodmis.org Reviewed-by:Tom Zanussi <zanussi@kernel.org> Signed-off-by:
Steven Rostedt (VMware) <rostedt@goodmis.org>
parent
efe6196a
Please register or sign in to comment