Initialize `struct timespec req` only once instead of on every loop iteration
since `sleep` is being constant throughout tracecmd_start_recording() execution.
No changes in behavior intended.
Signed-off-by: Slavomir Kaslev <kaslevs@xxxxxxxxxx>
---
lib/trace-cmd/trace-recorder.c | 11 ++++++-----
1 file changed, 6 insertions(+), 5 deletions(-)
diff --git a/lib/trace-cmd/trace-recorder.c b/lib/trace-cmd/trace-recorder.c
index 0b8d98a..0bd0657 100644
--- a/lib/trace-cmd/trace-recorder.c
+++ b/lib/trace-cmd/trace-recorder.c
@@ -466,7 +466,10 @@ long tracecmd_flush_recording(struct tracecmd_recorder *recorder)
int tracecmd_start_recording(struct tracecmd_recorder *recorder, unsigned long sleep)
{
- struct timespec req;
+ struct timespec req = {
+ .tv_sec = sleep / 1000000,
+ .tv_nsec = (sleep % 1000000) * 1000,
+ };
long read = 1;
long ret;
@@ -474,11 +477,9 @@ int tracecmd_start_recording(struct tracecmd_recorder *recorder, unsigned long s
do {
/* Only sleep if we did not read anything last time */
- if (!read && sleep) {
- req.tv_sec = sleep / 1000000;
- req.tv_nsec = (sleep % 1000000) * 1000;
+ if (!read && sleep)
nanosleep(&req, NULL);
- }
+
read = 0;
do {
if (recorder->flags & TRACECMD_RECORD_NOSPLICE)
--
2.19.1
|