NFS: Revert creation of IPv6 listeners for lockd and NFSv4 callbacks

We're about to convert over to using separate PF_INET and PF_INET6
listeners, instead of a single PF_INET6 listener that also receives
AF_INET requests and maps them to AF_INET6.

Clear the way by removing the logic in lockd and the NFSv4 callback
server that creates an AF_INET6 service listener.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

1 files changed, 2 insertions, 12 deletions

diff --git a/fs/nfs/callback.c b/fs/nfs/callback.c
index ddf4b4ae6967..0ef47dff89be 100644
--- a/fs/nfs/callback.c
+++ b/fs/nfs/callback.c
@@ -41,16 +41,6 @@ unsigned short nfs_callback_tcpport;
 static const int nfs_set_port_min = 0;
 static const int nfs_set_port_max = 65535;
 
-/*
- * If the kernel has IPv6 support available, always listen for
- * both AF_INET and AF_INET6 requests.
- */
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
-static const sa_family_t        nfs_callback_family = AF_INET6;
-#else
-static const sa_family_t        nfs_callback_family = AF_INET;
-#endif
-
 static int param_set_port(const char *val, struct kernel_param *kp)
 {
         char *endp;
@@ -121,13 +111,13 @@ int nfs_callback_up(void)
         if (!serv)
                 goto out_err;
 
-        ret = svc_create_xprt(serv, "tcp", nfs_callback_family,
+        ret = svc_create_xprt(serv, "tcp", PF_INET,
                                 nfs_callback_set_tcpport, SVC_SOCK_ANONYMOUS);
         if (ret <= 0)
                 goto out_err;
         nfs_callback_tcpport = ret;
         dprintk("NFS: Callback listener port = %u (af %u)\n",
-                        nfs_callback_tcpport, nfs_callback_family);
+                        nfs_callback_tcpport, PF_INET);
 
         nfs_callback_info.rqst = svc_prepare_thread(serv, &serv->sv_pools[0]);
         if (IS_ERR(nfs_callback_info.rqst)) {