From d8279bfc5e9598682f657606d3830ab65932cfe4 Mon Sep 17 00:00:00 2001 From: "Steven Rostedt (VMware)" Date: Tue, 16 Mar 2021 12:41:07 -0400 Subject: tracing: Add tracing_event_time_stamp() API Add a tracing_event_time_stamp() API that checks if the event passed in is not on the ring buffer but a pointer to the per CPU trace_buffered_event which does not have its time stamp set yet. If it is a pointer to the trace_buffered_event, then just return the current time stamp that the ring buffer would produce. Otherwise, return the time stamp from the event. Link: https://lkml.kernel.org/r/20210316164114.131996180@goodmis.org Reviewed-by: Tom Zanussi Signed-off-by: Steven Rostedt (VMware) --- kernel/trace/trace.h | 1 + 1 file changed, 1 insertion(+) (limited to 'kernel/trace/trace.h') diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h index f2a7a72825c7..0d8f54f49a3a 100644 --- a/kernel/trace/trace.h +++ b/kernel/trace/trace.h @@ -372,6 +372,7 @@ extern int tracing_check_open_get_tr(struct trace_array *tr); extern struct trace_array *trace_array_find(const char *instance); extern struct trace_array *trace_array_find_get(const char *instance); +extern u64 tracing_event_time_stamp(struct trace_buffer *buffer, struct ring_buffer_event *rbe); extern int tracing_set_filter_buffering(struct trace_array *tr, bool set); extern int tracing_set_clock(struct trace_array *tr, const char *clockstr); -- cgit v1.2.3