6536 zfs send: want a way to disable setting of DRR_FLAG_FREERECORDS
Reviewed by: Anil Vijarnia <avijarnia@racktopsystems.com>
Reviewed by: Kim Shrier <kshrier@racktopsystems.com>
Reviewed by: Matthew Ahrens <mahrens@delphix.com>

@@ -19,10 +19,11 @@
  * CDDL HEADER END
  */
 /*
  * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
  * Copyright (c) 2012, 2015 by Delphix. All rights reserved.
+ * Copyright 2016 RackTop Systems.
  */
 
 #ifndef _SYS_ZFS_IOCTL_H
 #define _SYS_ZFS_IOCTL_H
 

@@ -122,10 +123,14 @@
  * of the features indicated by feature flags.
  */
 
 #define DMU_BACKUP_MAGIC 0x2F5bacbacULL
 
+/*
+ * Send stream flags.  Bits 24-31 are reserved for vendor-specific
+ * implementations and should not be used.
+ */
 #define DRR_FLAG_CLONE          (1<<0)
 #define DRR_FLAG_CI_DATA        (1<<1)
 /*
  * This send stream, if it is a full send, includes the FREE and FREEOBJECT
  * records that are created by the sending process.  This means that the send