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-rw-r--r--net/core/pktgen.c11
1 files changed, 7 insertions, 4 deletions
diff --git a/net/core/pktgen.c b/net/core/pktgen.c
index 6bbf00801f61..0001c243b35c 100644
--- a/net/core/pktgen.c
+++ b/net/core/pktgen.c
@@ -2145,9 +2145,12 @@ static void spin(struct pktgen_dev *pkt_dev, ktime_t spin_until)
}
start_time = ktime_now();
- if (remaining < 100000)
- ndelay(remaining); /* really small just spin */
- else {
+ if (remaining < 100000) {
+ /* for small delays (<100us), just loop until limit is reached */
+ do {
+ end_time = ktime_now();
+ } while (ktime_lt(end_time, spin_until));
+ } else {
/* see do_nanosleep */
hrtimer_init_sleeper(&t, current);
do {
@@ -2162,8 +2165,8 @@ static void spin(struct pktgen_dev *pkt_dev, ktime_t spin_until)
hrtimer_cancel(&t.timer);
} while (t.task && pkt_dev->running && !signal_pending(current));
__set_current_state(TASK_RUNNING);
+ end_time = ktime_now();
}
- end_time = ktime_now();
pkt_dev->idle_acc += ktime_to_ns(ktime_sub(end_time, start_time));
pkt_dev->next_tx = ktime_add_ns(spin_until, pkt_dev->delay);