+void nf_conntrack_tcp_set_closing(struct nf_conn *ct)
+{
+ enum tcp_conntrack old_state;
+ const unsigned int *timeouts;
+ u32 timeout;
+
+ if (!nf_ct_is_confirmed(ct))
+ return;
+
+ spin_lock_bh(&ct->lock);
+ old_state = ct->proto.tcp.state;
+ ct->proto.tcp.state = TCP_CONNTRACK_CLOSE;
+
+ if (old_state == TCP_CONNTRACK_CLOSE ||
+ test_bit(IPS_FIXED_TIMEOUT_BIT, &ct->status)) {
+ spin_unlock_bh(&ct->lock);
+ return;
+ }
+
+ timeouts = nf_ct_timeout_lookup(ct);
+ if (!timeouts) {
+ const struct nf_tcp_net *tn;
+
+ tn = nf_tcp_pernet(nf_ct_net(ct));
+ timeouts = tn->timeouts;
+ }
+
+ timeout = timeouts[TCP_CONNTRACK_CLOSE];
+ WRITE_ONCE(ct->timeout, timeout + nfct_time_stamp);
+
+ spin_unlock_bh(&ct->lock);
+
+ nf_conntrack_event_cache(IPCT_PROTOINFO, ct);
+}
+