diff options
| author |   Steven Rostedt (VMware) <rostedt@goodmis.org> | 2021-03-16 12:41:04 -0400 |
|---|---|---|
| committer | Steven Rostedt (VMware) <rostedt@goodmis.org> | 2021-03-18 12:58:26 -0400 |
| commit | efe6196a6bc5bbc84b856316c4687fd24566a95c (patch) | |
| tree | 97e4205661b0639167ca4c93b33a7c3177757715 /include/linux/ring_buffer.h | |
| parent | tracing: Pass buffer of event to trigger operations (diff) | |
| download | wireguard-linux-efe6196a6bc5bbc84b856316c4687fd24566a95c.tar.xz wireguard-linux-efe6196a6bc5bbc84b856316c4687fd24566a95c.zip | |
ring-buffer: Allow ring_buffer_event_time_stamp() to return time stamp of all events
Currently, ring_buffer_event_time_stamp() only returns an accurate time
stamp of the event if it has an absolute extended time stamp attached to
it. To make it more robust, use the event_stamp() in case the event does
not have an absolute value attached to it.
This will allow ring_buffer_event_time_stamp() to be used in more cases
than just histograms, and it will also allow histograms to not require
including absolute values all the time.
Link: https://lkml.kernel.org/r/20210316164113.704830885@goodmis.org
Reviewed-by: Tom Zanussi <zanussi@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Diffstat (limited to 'include/linux/ring_buffer.h')
| -rw-r--r-- | include/linux/ring_buffer.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/include/linux/ring_buffer.h b/include/linux/ring_buffer.h index 136ea0997e6d..057b7ed4fe24 100644 --- a/include/linux/ring_buffer.h +++ b/include/linux/ring_buffer.h @@ -61,7 +61,8 @@ enum ring_buffer_type { unsigned ring_buffer_event_length(struct ring_buffer_event *event); void *ring_buffer_event_data(struct ring_buffer_event *event); -u64 ring_buffer_event_time_stamp(struct ring_buffer_event *event); +u64 ring_buffer_event_time_stamp(struct trace_buffer *buffer, + struct ring_buffer_event *event); /* * ring_buffer_discard_commit will remove an event that has not |