1479 static void sk_update_clone(const struct sock *sk, struct sock *newsk)  in sk_update_clone()  argument
1482 		sock_update_memcg(newsk);  in sk_update_clone()
1494 	struct sock *newsk;  in sk_clone_lock()  local
1497 	newsk = sk_prot_alloc(sk->sk_prot, priority, sk->sk_family);  in sk_clone_lock()
1498 	if (newsk != NULL) {  in sk_clone_lock()
1501 		sock_copy(newsk, sk);  in sk_clone_lock()
1504 		get_net(sock_net(newsk));  in sk_clone_lock()
1505 		sk_node_init(&newsk->sk_node);  in sk_clone_lock()
1506 		sock_lock_init(newsk);  in sk_clone_lock()
1507 		bh_lock_sock(newsk);  in sk_clone_lock()
1508 		newsk->sk_backlog.head	= newsk->sk_backlog.tail = NULL;  in sk_clone_lock()
1509 		newsk->sk_backlog.len = 0;  in sk_clone_lock()
1511 		atomic_set(&newsk->sk_rmem_alloc, 0);  in sk_clone_lock()
1515 		atomic_set(&newsk->sk_wmem_alloc, 1);  in sk_clone_lock()
1516 		atomic_set(&newsk->sk_omem_alloc, 0);  in sk_clone_lock()
1517 		skb_queue_head_init(&newsk->sk_receive_queue);  in sk_clone_lock()
1518 		skb_queue_head_init(&newsk->sk_write_queue);  in sk_clone_lock()
1520 		spin_lock_init(&newsk->sk_dst_lock);  in sk_clone_lock()
1521 		rwlock_init(&newsk->sk_callback_lock);  in sk_clone_lock()
1522 		lockdep_set_class_and_name(&newsk->sk_callback_lock,  in sk_clone_lock()
1523 				af_callback_keys + newsk->sk_family,  in sk_clone_lock()
1524 				af_family_clock_key_strings[newsk->sk_family]);  in sk_clone_lock()
1526 		newsk->sk_dst_cache	= NULL;  in sk_clone_lock()
1527 		newsk->sk_wmem_queued	= 0;  in sk_clone_lock()
1528 		newsk->sk_forward_alloc = 0;  in sk_clone_lock()
1529 		newsk->sk_send_head	= NULL;  in sk_clone_lock()
1530 		newsk->sk_userlocks	= sk->sk_userlocks & ~SOCK_BINDPORT_LOCK;  in sk_clone_lock()
1532 		sock_reset_flag(newsk, SOCK_DONE);  in sk_clone_lock()
1533 		skb_queue_head_init(&newsk->sk_error_queue);  in sk_clone_lock()
1535 		filter = rcu_dereference_protected(newsk->sk_filter, 1);  in sk_clone_lock()
1541 			is_charged = sk_filter_charge(newsk, filter);  in sk_clone_lock()
1543 		if (unlikely(!is_charged || xfrm_sk_clone_policy(newsk))) {  in sk_clone_lock()
1546 			newsk->sk_destruct = NULL;  in sk_clone_lock()
1547 			bh_unlock_sock(newsk);  in sk_clone_lock()
1548 			sk_free(newsk);  in sk_clone_lock()
1549 			newsk = NULL;  in sk_clone_lock()
1553 		newsk->sk_err	   = 0;  in sk_clone_lock()
1554 		newsk->sk_priority = 0;  in sk_clone_lock()
1555 		newsk->sk_incoming_cpu = raw_smp_processor_id();  in sk_clone_lock()
1556 		atomic64_set(&newsk->sk_cookie, 0);  in sk_clone_lock()
1562 		atomic_set(&newsk->sk_refcnt, 2);  in sk_clone_lock()
1575 		sk_refcnt_debug_inc(newsk);  in sk_clone_lock()
1576 		sk_set_socket(newsk, NULL);  in sk_clone_lock()
1577 		newsk->sk_wq = NULL;  in sk_clone_lock()
1579 		sk_update_clone(sk, newsk);  in sk_clone_lock()
1581 		if (newsk->sk_prot->sockets_allocated)  in sk_clone_lock()
1582 			sk_sockets_allocated_inc(newsk);  in sk_clone_lock()
1584 		if (newsk->sk_flags & SK_FLAGS_TIMESTAMP)  in sk_clone_lock()
1588 	return newsk;  in sk_clone_lock()