add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/net/ipv4/af_inet.c
..
..
@@ -888,7 +888,7 @@
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 		   EPOLLHUP, even on eg. unconnected UDP sockets -- RR */
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 		fallthrough;
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 	default:
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-		sk->sk_shutdown |= how;
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+		WRITE_ONCE(sk->sk_shutdown, sk->sk_shutdown | how);
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 		if (sk->sk_prot->shutdown)
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 			sk->sk_prot->shutdown(sk, how);
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 		break;