NFS: Move common includes outside ifdef

module.h, clnt.h, addr.h and dns_resolve.h is always included whether
CONFIG_NFS_USE_KERNEL_DNS is set or not and their order does not seems
to matter.

Move them outside the ifdef to simplify code and avoid checkincludes
message.
Signed-off-by: GUO Zihua <guozihua@huawei.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>

fs/nfs/dns_resolve.c

@@ -7,14 +7,16 @@
  * Resolves DNS hostnames into valid ip addresses
  */
 
-#ifdef CONFIG_NFS_USE_KERNEL_DNS
-
 #include <linux/module.h>
 #include <linux/sunrpc/clnt.h>
 #include <linux/sunrpc/addr.h>
-#include <linux/dns_resolver.h>
+
 #include "dns_resolve.h"
 
+#ifdef CONFIG_NFS_USE_KERNEL_DNS
+
+#include <linux/dns_resolver.h>
+
 ssize_t nfs_dns_resolve_name(struct net *net, char *name, size_t namelen,
 		struct sockaddr_storage *ss, size_t salen)
 {
@@ -35,7 +37,6 @@ ssize_t nfs_dns_resolve_name(struct net *net, char *name, size_t namelen,
 
 #else
 
-#include <linux/module.h>
 #include <linux/hash.h>
 #include <linux/string.h>
 #include <linux/kmod.h>
@@ -43,15 +44,12 @@ ssize_t nfs_dns_resolve_name(struct net *net, char *name, size_t namelen,
 #include <linux/socket.h>
 #include <linux/seq_file.h>
 #include <linux/inet.h>
-#include <linux/sunrpc/clnt.h>
-#include <linux/sunrpc/addr.h>
 #include <linux/sunrpc/cache.h>
 #include <linux/sunrpc/svcauth.h>
 #include <linux/sunrpc/rpc_pipe_fs.h>
 #include <linux/nfs_fs.h>
 
 #include "nfs4_fs.h"
-#include "dns_resolve.h"
 #include "cache_lib.h"
 #include "netns.h"