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authorAndriy Gapon <avg@FreeBSD.org>2017-08-08 11:19:56 +0000
committerAndriy Gapon <avg@FreeBSD.org>2017-08-08 11:19:56 +0000
commit23dbc3664977c04b37480ac5e1007c588a57a1fa (patch)
tree0b86f6d322185015ae00130912b5b769001e039f
parent74a3d2b7c8300c878171943114003723e98c619d (diff)
Notes
-rw-r--r--uts/common/fs/zfs/sys/uberblock_impl.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/uts/common/fs/zfs/sys/uberblock_impl.h b/uts/common/fs/zfs/sys/uberblock_impl.h
index 6ab6aa3135a2..2d5e845fcd47 100644
--- a/uts/common/fs/zfs/sys/uberblock_impl.h
+++ b/uts/common/fs/zfs/sys/uberblock_impl.h
@@ -20,6 +20,7 @@
*/
/*
* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2017 by Delphix. All rights reserved.
*/
#ifndef _SYS_UBERBLOCK_IMPL_H
@@ -54,6 +55,12 @@ struct uberblock {
/* highest SPA_VERSION supported by software that wrote this txg */
uint64_t ub_software_version;
+
+ /* These fields are reserved for features that are under development: */
+ uint64_t ub_mmp_magic;
+ uint64_t ub_mmp_delay;
+ uint64_t ub_mmp_seq;
+ uint64_t ub_checkpoint_txg;
};
#ifdef __cplusplus