Commit 3fb65f6b authored by Kevin Hao's avatar Kevin Hao Committed by David S. Miller
Browse files

net: pktgen: Use wait_event_freezable_timeout() for freezable kthread 



A freezable kernel thread can enter frozen state during freezing by
either calling try_to_freeze() or using wait_event_freezable() and its
variants. So for the following snippet of code in a kernel thread loop:
  wait_event_interruptible_timeout();
  try_to_freeze();

We can change it to a simple wait_event_freezable_timeout() and then
eliminate a function call.

Signed-off-by: default avatarKevin Hao <haokexin@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 2f7ccf1d

net/core/pktgen.c

+2 −4
Original line number Diff line number Diff line
@@ -3669,10 +3669,8 @@ static int pktgen_thread_worker(void *arg) 
		if (unlikely(!pkt_dev && t->control == 0)) {

			if (t->net->pktgen_exiting)

				break;

			wait_event_interruptible_timeout(t->queue,

							 t->control != 0,

							 HZ/10);

			try_to_freeze();

			wait_event_freezable_timeout(t->queue,

						     t->control != 0, HZ / 10);

			continue;

		}