151 static int alloc_netid(struct net *net, struct net *peer, int reqid)  in alloc_netid()  argument
160 	return idr_alloc(&net->netns_ids, peer, min, max, GFP_ATOMIC);  in alloc_netid()
169 static int net_eq_idr(int id, void *net, void *peer)  in net_eq_idr()  argument
171 	if (net_eq(net, peer))  in net_eq_idr()
180 static int __peernet2id_alloc(struct net *net, struct net *peer, bool *alloc)  in __peernet2id_alloc()  argument
182 	int id = idr_for_each(&net->netns_ids, net_eq_idr, peer);  in __peernet2id_alloc()
194 		id = alloc_netid(net, peer, -1);  in __peernet2id_alloc()
203 static int __peernet2id(struct net *net, struct net *peer)  in __peernet2id()  argument
207 	return __peernet2id_alloc(net, peer, &no);  in __peernet2id()
214 int peernet2id_alloc(struct net *net, struct net *peer)  in peernet2id_alloc()  argument
221 	alloc = atomic_read(&peer->count) == 0 ? false : true;  in peernet2id_alloc()
222 	id = __peernet2id_alloc(net, peer, &alloc);  in peernet2id_alloc()
231 int peernet2id(struct net *net, struct net *peer)  in peernet2id()  argument
237 	id = __peernet2id(net, peer);  in peernet2id()
245 bool peernet_has_id(struct net *net, struct net *peer)  in peernet_has_id()  argument
247 	return peernet2id(net, peer) >= 0;  in peernet_has_id()
253 	struct net *peer;  in get_net_ns_by_id()  local
260 	peer = idr_find(&net->netns_ids, id);  in get_net_ns_by_id()
261 	if (peer)  in get_net_ns_by_id()
262 		get_net(peer);  in get_net_ns_by_id()
266 	return peer;  in get_net_ns_by_id()
546 	struct net *peer;  in rtnl_net_newid()  local
558 		peer = get_net_ns_by_pid(nla_get_u32(tb[NETNSA_PID]));  in rtnl_net_newid()
560 		peer = get_net_ns_by_fd(nla_get_u32(tb[NETNSA_FD]));  in rtnl_net_newid()
563 	if (IS_ERR(peer))  in rtnl_net_newid()
564 		return PTR_ERR(peer);  in rtnl_net_newid()
567 	if (__peernet2id(net, peer) >= 0) {  in rtnl_net_newid()
573 	err = alloc_netid(net, peer, nsid);  in rtnl_net_newid()
580 	put_net(peer);  in rtnl_net_newid()
620 	struct net *peer;  in rtnl_net_getid()  local
628 		peer = get_net_ns_by_pid(nla_get_u32(tb[NETNSA_PID]));  in rtnl_net_getid()
630 		peer = get_net_ns_by_fd(nla_get_u32(tb[NETNSA_FD]));  in rtnl_net_getid()
634 	if (IS_ERR(peer))  in rtnl_net_getid()
635 		return PTR_ERR(peer);  in rtnl_net_getid()
643 	id = peernet2id(net, peer);  in rtnl_net_getid()
655 	put_net(peer);  in rtnl_net_getid()
667 static int rtnl_net_dumpid_one(int id, void *peer, void *data)  in rtnl_net_dumpid_one()  argument