On Tue, 5 Sep 2017 16:57:50 -0500 Tom Zanussi <[email protected]> wrote:
> Allow tracing code outside of trace.c to access tracing_set_clock(). > > Some applications may require a particular clock in order to function > properly, such as latency calculations. > > Also, add an accessor returning the current clock string. It seems this patch should be merged in the next patch, which is actual consumer of this API. Thank you, > > Signed-off-by: Tom Zanussi <[email protected]> > --- > kernel/trace/trace.c | 2 +- > kernel/trace/trace.h | 1 + > 2 files changed, 2 insertions(+), 1 deletion(-) > > diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c > index d40839d..ecdf456 100644 > --- a/kernel/trace/trace.c > +++ b/kernel/trace/trace.c > @@ -6207,7 +6207,7 @@ static int tracing_clock_show(struct seq_file *m, void > *v) > return 0; > } > > -static int tracing_set_clock(struct trace_array *tr, const char *clockstr) > +int tracing_set_clock(struct trace_array *tr, const char *clockstr) > { > int i; > > diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h > index 7b78762..1f3443a 100644 > --- a/kernel/trace/trace.h > +++ b/kernel/trace/trace.h > @@ -288,6 +288,7 @@ enum { > extern void trace_array_put(struct trace_array *tr); > > extern int tracing_set_time_stamp_abs(struct trace_array *tr, bool abs); > +extern int tracing_set_clock(struct trace_array *tr, const char *clockstr); > > extern bool trace_clock_in_ns(struct trace_array *tr); > > -- > 1.9.3 > -- Masami Hiramatsu <[email protected]>
