--- src/sys/vfs/hammer/hammer_mount.h	2008/06/03 18:47:25	1.5
+++ src/sys/vfs/hammer/hammer_mount.h	2008/06/23 21:42:48	1.6
@@ -49,14 +49,15 @@ struct hammer_mount_info {
 	const char	**volumes;	/* array of pointers to device names */
 	int		nvolumes;	/* number of devices */
 	int		hflags;		/* extended hammer mount flags */
-	int		unused01;
+	int		masterid;
 	u_int64_t	asof;		/* asof - HAMMER_MAX_TID is current */
 	struct export_args export;	/* export arguments */
 	u_int64_t	reserved[15];
 };
 
 #define HMNT_NOHISTORY	0x00000001
-#define HMNT_EXPORTREQ	0x00000002
+#define HMNT_MASTERID	0x00000002	/* masterid field set */
+#define HMNT_EXPORTREQ	0x00000004
 
-#define HMNT_USERFLAGS	(HMNT_NOHISTORY)
+#define HMNT_USERFLAGS	(HMNT_NOHISTORY | HMNT_MASTERID)