From: Nicolas Dichtel <nicolas.dich...@6wind.com> Date: Tue, 3 Oct 2017 13:53:23 +0200
> x-netns interfaces are bound to two netns: the link netns and the upper > netns. Usually, this kind of interfaces is created in the link netns and > then moved to the upper netns. At the end, the interface is visible only > in the upper netns. The link nsid is advertised via netlink in the upper > netns, thus the user always knows where is the link part. > > There is no such mechanism in the link netns. When the interface is moved > to another netns, the user cannot "follow" it. > This patch adds a new netlink attribute which helps to follow an interface > which moves to another netns. When the interface is unregistered, the new > nsid is advertised. If the interface is a x-netns interface (ie > rtnl_link_ops->get_link_net is defined), the nsid is allocated if needed. > > CC: Jason A. Donenfeld <ja...@zx2c4.com> > Signed-off-by: Nicolas Dichtel <nicolas.dich...@6wind.com> Ok, applied, thanks.
