153 static int alloc_netid(struct net *net, struct net *peer, int reqid)  in alloc_netid()  argument
162 	return idr_alloc(&net->netns_ids, peer, min, max, GFP_ATOMIC);  in alloc_netid()
171 static int net_eq_idr(int id, void *net, void *peer)  in net_eq_idr()  argument
173 	if (net_eq(net, peer))  in net_eq_idr()
182 static int __peernet2id_alloc(struct net *net, struct net *peer, bool *alloc)  in __peernet2id_alloc()  argument
184 	int id = idr_for_each(&net->netns_ids, net_eq_idr, peer);  in __peernet2id_alloc()
196 		id = alloc_netid(net, peer, -1);  in __peernet2id_alloc()
205 static int __peernet2id(struct net *net, struct net *peer)  in __peernet2id()  argument
209 	return __peernet2id_alloc(net, peer, &no);  in __peernet2id()
216 int peernet2id_alloc(struct net *net, struct net *peer)  in peernet2id_alloc()  argument
225 	alloc = atomic_read(&peer->count) == 0 ? false : true;  in peernet2id_alloc()
226 	id = __peernet2id_alloc(net, peer, &alloc);  in peernet2id_alloc()
234 int peernet2id(struct net *net, struct net *peer)  in peernet2id()  argument
240 	id = __peernet2id(net, peer);  in peernet2id()
249 bool peernet_has_id(struct net *net, struct net *peer)  in peernet_has_id()  argument
251 	return peernet2id(net, peer) >= 0;  in peernet_has_id()
257 	struct net *peer;  in get_net_ns_by_id()  local
264 	peer = idr_find(&net->netns_ids, id);  in get_net_ns_by_id()
265 	if (peer)  in get_net_ns_by_id()
266 		peer = maybe_get_net(peer);  in get_net_ns_by_id()
270 	return peer;  in get_net_ns_by_id()
589 	struct net *peer;  in rtnl_net_newid()  local
601 		peer = get_net_ns_by_pid(nla_get_u32(tb[NETNSA_PID]));  in rtnl_net_newid()
603 		peer = get_net_ns_by_fd(nla_get_u32(tb[NETNSA_FD]));  in rtnl_net_newid()
606 	if (IS_ERR(peer))  in rtnl_net_newid()
607 		return PTR_ERR(peer);  in rtnl_net_newid()
610 	if (__peernet2id(net, peer) >= 0) {  in rtnl_net_newid()
616 	err = alloc_netid(net, peer, nsid);  in rtnl_net_newid()
623 	put_net(peer);  in rtnl_net_newid()
663 	struct net *peer;  in rtnl_net_getid()  local
671 		peer = get_net_ns_by_pid(nla_get_u32(tb[NETNSA_PID]));  in rtnl_net_getid()
673 		peer = get_net_ns_by_fd(nla_get_u32(tb[NETNSA_FD]));  in rtnl_net_getid()
677 	if (IS_ERR(peer))  in rtnl_net_getid()
678 		return PTR_ERR(peer);  in rtnl_net_getid()
686 	id = peernet2id(net, peer);  in rtnl_net_getid()
698 	put_net(peer);  in rtnl_net_getid()
710 static int rtnl_net_dumpid_one(int id, void *peer, void *data)  in rtnl_net_dumpid_one()  argument