From: Vlad Buslov <vla...@mellanox.com>
Date: Thu, 13 Jun 2019 19:12:05 +0300
> To remove rtnl lock dependency in tc filter update API when using clsact
> Qdisc, set QDISC_CLASS_OPS_DOIT_UNLOCKED flag in clsact Qdisc_class_ops.
>
> Clsact Qdisc ops don't require any modifications to be used without rtnl
> lock on tc filter update path. Implementation never changes its q->block
> and only releases it when Qdisc is being destroyed. This means it is enough
> for RTM_{NEWTFILTER|DELTFILTER|GETTFILTER} message handlers to hold clsact
> Qdisc reference while using it without relying on rtnl lock protection.
> Unlocked Qdisc ops support is already implemented in filter update path by
> unlocked cls API patch set.
>
> Signed-off-by: Vlad Buslov <vla...@mellanox.com>
Applied.
