UBIFS: make xattr operations names consistent

This is just a tiny clean-up patch. The variable name for empty address
space operations is "empty_aops". Let's use consistent names for empty
inode and file operations: "empty_iops" and "empty_fops", instead of
inconsistent "none_inode_operations" and "none_file_operations".

Artem: re-write the commit message.

Signed-off-by: Sedat Dilek <sedat.dilek@gmail.com>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
diff --git a/fs/ubifs/xattr.c b/fs/ubifs/xattr.c
index 3299f46..16f19f5 100644
--- a/fs/ubifs/xattr.c
+++ b/fs/ubifs/xattr.c
@@ -80,8 +80,8 @@
 	SECURITY_XATTR,
 };
 
-static const struct inode_operations none_inode_operations;
-static const struct file_operations none_file_operations;
+static const struct inode_operations empty_iops;
+static const struct file_operations empty_fops;
 
 /**
  * create_xattr - create an extended attribute.
@@ -131,8 +131,8 @@
 
 	/* Re-define all operations to be "nothing" */
 	inode->i_mapping->a_ops = &empty_aops;
-	inode->i_op = &none_inode_operations;
-	inode->i_fop = &none_file_operations;
+	inode->i_op = &empty_iops;
+	inode->i_fop = &empty_fops;
 
 	inode->i_flags |= S_SYNC | S_NOATIME | S_NOCMTIME | S_NOQUOTA;
 	ui = ubifs_inode(inode);