From: Vlad Buslov
Date: Mon, 17 Sep 2018 10:17:33 +0300
> +struct Qdisc *qdisc_lookup_rcu(struct net_device *dev, u32 handle)
> +{
> + struct Qdisc *q;
> + struct netdev_queue *nq;
Reverse christmas tree for the local variables, please.
Currently, Qdisc API functions assume that users have rtnl lock taken. To
implement rtnl unlocked classifiers update interface, Qdisc API must be
extended with functions that do not require rtnl lock.
Extend Qdisc structure with rcu. Implement special version of put function
qdisc_put_unlocked()
