| Message ID | 20190822065816.23619-1-xiaolinkui@kylinos.cn |
|---|---|
| State | Accepted |
| Delegated to: | David Miller |
| Headers | show |
| Series | net: use unlikely for dql_avail case | expand |
From: xiaolinkui <xiaolinkui@kylinos.cn> Date: Thu, 22 Aug 2019 14:58:16 +0800 > This is an unlikely case, use unlikely() on it seems logical. > > Signed-off-by: xiaolinkui <xiaolinkui@kylinos.cn> Applied to net-next.
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 88292953aa6f..005f3da1b13d 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -3270,7 +3270,7 @@ static inline void netdev_tx_completed_queue(struct netdev_queue *dev_queue, */ smp_mb(); - if (dql_avail(&dev_queue->dql) < 0) + if (unlikely(dql_avail(&dev_queue->dql) < 0)) return; if (test_and_clear_bit(__QUEUE_STATE_STACK_XOFF, &dev_queue->state))
This is an unlikely case, use unlikely() on it seems logical. Signed-off-by: xiaolinkui <xiaolinkui@kylinos.cn> --- include/linux/netdevice.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)