--- a/usr/src/uts/common/sys/fs/zfs.h	Tue Jul 13 15:48:42 2010 -0400
+++ b/usr/src/uts/common/sys/fs/zfs.h	Tue Jul 13 16:34:04 2010 -0600
@@ -465,6 +465,7 @@
 #define	ZPOOL_CONFIG_NPARITY		"nparity"
 #define	ZPOOL_CONFIG_HOSTID		"hostid"
 #define	ZPOOL_CONFIG_HOSTNAME		"hostname"
+#define	ZPOOL_CONFIG_LOADED_TIME	"initial_load_time"
 #define	ZPOOL_CONFIG_UNSPARE		"unspare"
 #define	ZPOOL_CONFIG_PHYS_PATH		"phys_path"
 #define	ZPOOL_CONFIG_IS_LOG		"is_log"