perf bench futex: Use NSEC_PER_USEC

Following kernel practices and better documentin

Cc: Adrian Hunter <[email protected]>
Cc: David Ahern <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Steven Rostedt <[email protected]>
Cc: Wang Nan <[email protected]>
Link: http://lkml.kernel.org/n/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>

1 files changed, 3 insertions, 2 deletions

diff --git a/tools/perf/bench/futex-requeue.c b/tools/perf/bench/futex-requeue.c
index f96e22ed9f87..2b9705a8734c 100644
--- a/tools/perf/bench/futex-requeue.c
+++ b/tools/perf/bench/futex-requeue.c
@@ -16,6 +16,7 @@
 #include <subcmd/parse-options.h>
 #include <linux/compiler.h>
 #include <linux/kernel.h>
+#include <linux/time64.h>
 #include <errno.h>
 #include "bench.h"
 #include "futex.h"
@@ -62,7 +63,7 @@ static void print_summary(void)
 	printf("Requeued %d of %d threads in %.4f ms (+-%.2f%%)\n",
 	       requeued_avg,
 	       nthreads,
-	       requeuetime_avg/1e3,
+	       requeuetime_avg / USEC_PER_MSEC,
 	       rel_stddev_stats(requeuetime_stddev, requeuetime_avg));
 }
 
@@ -184,7 +185,7 @@ int bench_futex_requeue(int argc, const char **argv,
 
 		if (!silent) {
 			printf("[Run %d]: Requeued %d of %d threads in %.4f ms\n",
-			       j + 1, nrequeued, nthreads, runtime.tv_usec/1e3);
+			       j + 1, nrequeued, nthreads, runtime.tv_usec / (double)USEC_PER_MSEC);
 		}
 
 		/* everybody should be blocked on futex2, wake'em up */