From: Vlad Buslov <vla...@mellanox.com>
Date: Wed, 12 Jun 2019 10:14:35 +0300
> To remove rtnl lock dependency in tc filter update API when using ingress
> Qdisc, set QDISC_CLASS_OPS_DOIT_UNLOCKED flag in ingress Qdisc_class_ops.
>
> Ingress Qdisc ops don't require any modifications to be used without rtnl
> lock on tc filter update path. Ingress 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 ingress 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.
