CIFS: Add open/close file support for SMB2

Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org>
Signed-off-by: Steve French <smfrench@gmail.com>
diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
index 39bf2f3..8a69dae 100644
--- a/fs/cifs/cifsglob.h
+++ b/fs/cifs/cifsglob.h
@@ -757,6 +757,10 @@
 
 struct cifs_fid {
 	__u16 netfid;
+#ifdef CONFIG_CIFS_SMB2
+	__u64 persistent_fid;	/* persist file id for smb2 */
+	__u64 volatile_fid;	/* volatile file id for smb2 */
+#endif
 };
 
 struct cifsFileInfo {