NFS: parse DNS cache in proper network namespace context

This patch replaces "init_net" with cache's owner net in rpc_pton() call.

Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
diff --git a/fs/nfs/dns_resolve.c b/fs/nfs/dns_resolve.c
index 7edc62a..be9a530 100644
--- a/fs/nfs/dns_resolve.c
+++ b/fs/nfs/dns_resolve.c
@@ -224,7 +224,7 @@
 	len = qword_get(&buf, buf1, sizeof(buf1));
 	if (len <= 0)
 		goto out;
-	key.addrlen = rpc_pton(&init_net, buf1, len,
+	key.addrlen = rpc_pton(cd->net, buf1, len,
 			(struct sockaddr *)&key.addr,
 			sizeof(key.addr));