From: Tom Zanussi 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. Link: http://lkml.kernel.org/r/6d1c53e9ee2163f54e1849f5376573f54f0e6009.1516069914.git.tom.zanussi@linux.intel.com Signed-off-by: Tom Zanussi Signed-off-by: Steven Rostedt (VMware) --- 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 68f8702af9fb..551a7cd0d705 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -6214,7 +6214,7 @@ 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 99b7ee7ed127..9de3e2a2f042 100644 --- a/kernel/trace/trace.h +++ b/kernel/trace/trace.h @@ -289,6 +289,7 @@ extern int trace_array_get(struct trace_array *tr); 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); -- 2.15.1