4185 New hash algorithm support

@@ -22,10 +22,11 @@
 /*
  * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
  * Copyright (c) 2013 by Delphix. All rights reserved.
  * Copyright 2011 Nexenta Systems, Inc. All rights reserved.
  * Copyright (c) 2012, Joyent, Inc. All rights reserved.
+ * Copyright 2013 Saso Kiselkov. All rights reserved.
  */
 
 /* Portions Copyright 2010 Robert Milkowski */
 
 #ifndef _SYS_DMU_H

@@ -307,10 +308,11 @@
 #define DMU_POOL_CREATION_VERSION       "creation_version"
 #define DMU_POOL_SCAN                   "scan"
 #define DMU_POOL_FREE_BPOBJ             "free_bpobj"
 #define DMU_POOL_BPTREE_OBJ             "bptree_obj"
 #define DMU_POOL_EMPTY_BPOBJ            "empty_bpobj"
+#define DMU_POOL_CHECKSUM_SALT          "checksum_salt"
 
 /*
  * Allocate an object from this objset.  The range of object numbers
  * available is (0, DN_MAX_OBJECT).  Object 0 is the meta-dnode.
  *