tree 18efb2d077e930a9b7829ed151f208e2345badf6
parent 9d7e82cec35c027756ec97e274f878251f271181
author Vlad Buslov <vladbu@mellanox.com> 1537806173 +0300
committer David S. Miller <davem@davemloft.net> 1537931856 -0700

net: sched: use Qdisc rcu API instead of relying on rtnl lock

As a preparation from removing rtnl lock dependency from rules update path,
use Qdisc rcu and reference counting capabilities instead of relying on
rtnl lock while working with Qdiscs. Create new tcf_block_release()
function, and use it to free resources taken by tcf_block_find().
Currently, this function only releases Qdisc and it is extended in next
patches in this series.

Signed-off-by: Vlad Buslov <vladbu@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>