NFS: Make nfs_open methods consistent

Clean up: Report the same debugging info and count function calls the
same for files and directories in nfs_opendir() and nfs_file_open().

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
diff --git a/fs/nfs/file.c b/fs/nfs/file.c
index cef3636..202408d 100644
--- a/fs/nfs/file.c
+++ b/fs/nfs/file.c
@@ -119,6 +119,10 @@
 {
 	int res;
 
+	dfprintk(VFS, "NFS: open file(%s/%s)\n",
+			filp->f_path.dentry->d_parent->d_name.name,
+			filp->f_path.dentry->d_name.name);
+
 	res = nfs_check_flags(filp->f_flags);
 	if (res)
 		return res;