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authorChristoph Hellwig <hch@lst.de>2020-05-28 07:12:31 +0200
committerDavid S. Miller <davem@davemloft.net>2020-05-28 11:11:45 -0700
commit9b115749acb24d11083ded4fe947ddd654a940e3 (patch)
tree8667571df0465bf10b1d72a641df77ac916dd773 /net/sunrpc/svcsock.c
parentc1f9ec5776dd05eaf62cf6788ecdfc905dc8ec2b (diff)
downloadlinux-9b115749acb24d11083ded4fe947ddd654a940e3.tar.gz
ipv6: add ip6_sock_set_v6only
Add a helper to directly set the IPV6_V6ONLY sockopt from kernel space
without going through a fake uaccess.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sunrpc/svcsock.c')
-rw-r--r--net/sunrpc/svcsock.c6
1 files changed, 1 insertions, 5 deletions
diff --git a/net/sunrpc/svcsock.c b/net/sunrpc/svcsock.c
index 7a805d165689..a391892977cd 100644
--- a/net/sunrpc/svcsock.c
+++ b/net/sunrpc/svcsock.c
@@ -1328,7 +1328,6 @@ static struct svc_xprt *svc_create_socket(struct svc_serv *serv,
 	struct sockaddr *newsin = (struct sockaddr *)&addr;
 	int		newlen;
 	int		family;
-	int		val;
 	RPC_IFDEBUG(char buf[RPC_MAX_ADDRBUFLEN]);
 
 	dprintk("svc: svc_create_socket(%s, %d, %s)\n",
@@ -1364,11 +1363,8 @@ static struct svc_xprt *svc_create_socket(struct svc_serv *serv,
 	 * getting requests from IPv4 remotes.  Those should
 	 * be shunted to a PF_INET listener via rpcbind.
 	 */
-	val = 1;
 	if (family == PF_INET6)
-		kernel_setsockopt(sock, SOL_IPV6, IPV6_V6ONLY,
-					(char *)&val, sizeof(val));
-
+		ip6_sock_set_v6only(sock->sk);
 	if (type == SOCK_STREAM)
 		sock->sk->sk_reuse = SK_CAN_REUSE; /* allow address reuse */
 	error = kernel_bind(sock, sin, len);