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authorSteven Rostedt (VMware) <rostedt@goodmis.org>2021-03-16 12:41:04 -0400
committerSteven Rostedt (VMware) <rostedt@goodmis.org>2021-03-18 12:58:26 -0400
commitefe6196a6bc5bbc84b856316c4687fd24566a95c (patch)
tree97e4205661b0639167ca4c93b33a7c3177757715 /kernel/trace/trace_events_hist.c
parentb47e330231acbf4506b049643145cc64268a1940 (diff)
downloadlinux-efe6196a6bc5bbc84b856316c4687fd24566a95c.tar.bz2
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 'kernel/trace/trace_events_hist.c')
-rw-r--r--kernel/trace/trace_events_hist.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/trace/trace_events_hist.c b/kernel/trace/trace_events_hist.c
index 6978aa3ee4c5..45986cb4637e 100644
--- a/kernel/trace/trace_events_hist.c
+++ b/kernel/trace/trace_events_hist.c
@@ -644,7 +644,7 @@ static u64 hist_field_timestamp(struct hist_field *hist_field,
struct hist_trigger_data *hist_data = hist_field->hist_data;
struct trace_array *tr = hist_data->event_file->tr;
- u64 ts = ring_buffer_event_time_stamp(rbe);
+ u64 ts = ring_buffer_event_time_stamp(buffer, rbe);
if (hist_data->attrs->ts_in_usecs && trace_clock_in_ns(tr))
ts = ns2usecs(ts);