Commit db0ccffe authored May 08, 2007 by Herbert Xu Committed by David S. Miller May 10, 2007

[NET] link_watch: Eliminate potential delay on wrap-around



When the jiffies wrap around or when the system boots up for the first
time, down events can be delayed indefinitely since we no longer
update linkwatch_nextevent when only urgent events are processed.

This patch fixes this by setting linkwatch_nextevent when a
wrap-around occurs.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent 4cd8c9e8

net/core/link_watch.c

+3 −1

Original line number	Diff line number	Diff line
		@@ -101,8 +101,10 @@ static void linkwatch_schedule_work(unsigned long delay)
		return;

		/* If we wrap around we'll delay it by at most HZ. */
		if (delay > HZ)
		if (delay > HZ) {
		linkwatch_nextevent = jiffies;
		delay = 0;
		}

		schedule_delayed_work(&linkwatch_work, delay);
		}