| Message ID | 20241007085651.48544-1-ubizjak@gmail.com (mailing list archive) |
|---|---|
| State | Accepted |
| Commit | eb887c4567d1b0e7684c026fe7df44afa96589e6 |
| Headers | show |
| Series | tracing: Use atomic64_inc_return() in trace_clock_counter() | expand |
diff --git a/kernel/trace/trace_clock.c b/kernel/trace/trace_clock.c index 4702efb00ff2..4cb2ebc439be 100644 --- a/kernel/trace/trace_clock.c +++ b/kernel/trace/trace_clock.c @@ -154,5 +154,5 @@ static atomic64_t trace_counter; */ u64 notrace trace_clock_counter(void) { - return atomic64_add_return(1, &trace_counter); + return atomic64_inc_return(&trace_counter); }
Use atomic64_inc_return(&ref) instead of atomic64_add_return(1, &ref) to use optimized implementation and ease register pressure around the primitive for targets that implement optimized variant. Signed-off-by: Uros Bizjak <ubizjak@gmail.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> --- kernel/trace/trace_clock.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)