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-rw-r--r--net/sunrpc/svcsock.c10
1 files changed, 4 insertions, 6 deletions
diff --git a/net/sunrpc/svcsock.c b/net/sunrpc/svcsock.c
index d00bc330774..ac6cd65220c 100644
--- a/net/sunrpc/svcsock.c
+++ b/net/sunrpc/svcsock.c
@@ -1144,13 +1144,11 @@ static struct svc_sock *svc_setup_socket(struct svc_serv *serv,
svc_tcp_init(svsk, serv);
/*
- * We start one listener per sv_serv. We want AF_INET
- * requests to be automatically shunted to our PF_INET6
- * listener using a mapped IPv4 address. Make sure
- * no-one starts an equivalent IPv4 listener, which
- * would steal our incoming connections.
+ * If this is a PF_INET6 listener, we want to avoid
+ * getting requests from IPv4 remotes. Those should
+ * be shunted to a PF_INET listener via rpcbind.
*/
- val = 0;
+ val = 1;
if (inet->sk_family == PF_INET6)
kernel_setsockopt(sock, SOL_IPV6, IPV6_V6ONLY,
(char *)&val, sizeof(val));