NFSv4: 'constify' lookup arguments.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 8799b1d..5f3689b 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -1565,7 +1565,7 @@
  * Note that we'll actually follow the referral later when
  * we detect fsid mismatch in inode revalidation
  */
-static int nfs4_get_referral(struct inode *dir, struct qstr *name, struct nfs_fattr *fattr, struct nfs_fh *fhandle)
+static int nfs4_get_referral(struct inode *dir, const struct qstr *name, struct nfs_fattr *fattr, struct nfs_fh *fhandle)
 {
 	int status = -ENOMEM;
 	struct page *page = NULL;
@@ -1680,8 +1680,8 @@
 	return status;
 }
 
-static int _nfs4_proc_lookupfh(struct nfs_server *server, struct nfs_fh *dirfh,
-		struct qstr *name, struct nfs_fh *fhandle,
+static int _nfs4_proc_lookupfh(struct nfs_server *server, const struct nfs_fh *dirfh,
+		const struct qstr *name, struct nfs_fh *fhandle,
 		struct nfs_fattr *fattr)
 {
 	int		       status;
@@ -1727,7 +1727,7 @@
 	return err;
 }
 
-static int _nfs4_proc_lookup(struct inode *dir, struct qstr *name,
+static int _nfs4_proc_lookup(struct inode *dir, const struct qstr *name,
 		struct nfs_fh *fhandle, struct nfs_fattr *fattr)
 {
 	int status;
@@ -3684,7 +3684,7 @@
 	return len;
 }
 
-int nfs4_proc_fs_locations(struct inode *dir, struct qstr *name,
+int nfs4_proc_fs_locations(struct inode *dir, const struct qstr *name,
 		struct nfs4_fs_locations *fs_locations, struct page *page)
 {
 	struct nfs_server *server = NFS_SERVER(dir);