X-Git-Url: https://git.camperquake.de/gitweb.cgi?a=blobdiff_plain;ds=sidebyside;f=module%2Fzfs%2Finclude%2Fsys%2Fuberblock_impl.h;h=6ab6aa3135a2205d72ea388d51791866f7c7ed9d;hb=428870ff734fdaccc342b33fc53cf94724409a46;hp=b49df8ae0ce315b40617871a9389f9c5905ddd80;hpb=fb5f0bc83330c8a0236c4d34a23723ac1974971a;p=zfs.git

diff --git a/module/zfs/include/sys/uberblock_impl.h b/module/zfs/include/sys/uberblock_impl.h
index b49df8a..6ab6aa3 100644
--- a/module/zfs/include/sys/uberblock_impl.h
+++ b/module/zfs/include/sys/uberblock_impl.h
@@ -19,8 +19,7 @@
  * CDDL HEADER END
  */
 /*
- * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
- * Use is subject to license terms.
+ * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
  */
 
 #ifndef _SYS_UBERBLOCK_IMPL_H
@@ -33,11 +32,6 @@ extern "C" {
 #endif
 
 /*
- * For zdb use and debugging purposes only
- */
-extern uint64_t ub_max_txg;
-
-/*
  * The uberblock version is incremented whenever an incompatible on-disk
  * format change is made to the SPA, DMU, or ZAP.
  *
@@ -57,6 +51,9 @@ struct uberblock {
 	uint64_t	ub_guid_sum;	/* sum of all vdev guids	*/
 	uint64_t	ub_timestamp;	/* UTC time of last sync	*/
 	blkptr_t	ub_rootbp;	/* MOS objset_phys_t		*/
+
+	/* highest SPA_VERSION supported by software that wrote this txg */
+	uint64_t	ub_software_version;
 };
 
 #ifdef	__cplusplus