static struct vport *gre_tnl_create(const struct vport_parms *parms) { struct net *net = ovs_dp_get_net(parms->dp); struct net_device *dev; struct vport *vport; int err; vport = ovs_vport_alloc(0, &ovs_gre_vport_ops, parms); if (IS_ERR(vport)) return vport; rtnl_lock(); dev = gretap_fb_dev_create(net, parms->name, NET_NAME_USER); if (IS_ERR(dev)) { rtnl_unlock(); ovs_vport_free(vport); return ERR_CAST(dev); } err = dev_change_flags(dev, dev->flags | IFF_UP); if (err < 0) { rtnl_delete_link(dev); rtnl_unlock(); ovs_vport_free(vport); return ERR_PTR(err); } rtnl_unlock(); return vport; }
void ovs_netdev_tunnel_destroy(struct vport *vport) { rtnl_lock(); if (vport->dev->priv_flags & IFF_OVS_DATAPATH) ovs_netdev_detach_dev(vport); /* Early release so we can unregister the device */ dev_put(vport->dev); rtnl_delete_link(vport->dev); vport->dev = NULL; rtnl_unlock(); call_rcu(&vport->rcu, vport_netdev_free); }
void ovs_netdev_tunnel_destroy(struct vport *vport) { rtnl_lock(); if (vport->dev->priv_flags & IFF_OVS_DATAPATH) ovs_netdev_detach_dev(vport); /* We can be invoked by both explicit vport deletion and * underlying netdev deregistration; delete the link only * if it's not already shutting down. */ if (vport->dev->reg_state == NETREG_REGISTERED) rtnl_delete_link(vport->dev); dev_put(vport->dev); vport->dev = NULL; rtnl_unlock(); call_rcu(&vport->rcu, vport_netdev_free); }