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Date:      Tue, 1 Jul 2014 22:42:54 +0000 (UTC)
From:      Xin LI <delphij@FreeBSD.org>
To:        src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org
Subject:   svn commit: r268128 - in head/sys/cddl/contrib/opensolaris: common/zfs uts/common/fs/zfs uts/common/sys/fs
Message-ID:  <201407012242.s61Mgs2A048542@svn.freebsd.org>
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Author: delphij
Date: Tue Jul  1 22:42:53 2014
New Revision: 268128
URL: http://svnweb.freebsd.org/changeset/base/268128

Log:
  MFV r268122:
  
  4929 want prevsnap property
  
  illumos/illumos-gate@b461c7460e5e77cf65f00151162e654220c6e2fb
  
  MFC after:	2 weeks

Modified:
  head/sys/cddl/contrib/opensolaris/common/zfs/zfs_prop.c
  head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dsl_dataset.c
  head/sys/cddl/contrib/opensolaris/uts/common/sys/fs/zfs.h
Directory Properties:
  head/sys/cddl/contrib/opensolaris/   (props changed)

Modified: head/sys/cddl/contrib/opensolaris/common/zfs/zfs_prop.c
==============================================================================
--- head/sys/cddl/contrib/opensolaris/common/zfs/zfs_prop.c	Tue Jul  1 22:32:11 2014	(r268127)
+++ head/sys/cddl/contrib/opensolaris/common/zfs/zfs_prop.c	Tue Jul  1 22:42:53 2014	(r268128)
@@ -435,6 +435,8 @@ zfs_prop_init(void)
 	    PROP_READONLY, ZFS_TYPE_DATASET, "OBJSETID");
 	zprop_register_hidden(ZFS_PROP_INCONSISTENT, "inconsistent",
 	    PROP_TYPE_NUMBER, PROP_READONLY, ZFS_TYPE_DATASET, "INCONSISTENT");
+	zprop_register_hidden(ZFS_PROP_PREV_SNAP, "prevsnap", PROP_TYPE_STRING,
+	    PROP_READONLY, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "PREVSNAP");
 
 	/* oddball properties */
 	zprop_register_impl(ZFS_PROP_CREATION, "creation", PROP_TYPE_NUMBER, 0,

Modified: head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dsl_dataset.c
==============================================================================
--- head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dsl_dataset.c	Tue Jul  1 22:32:11 2014	(r268127)
+++ head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dsl_dataset.c	Tue Jul  1 22:42:53 2014	(r268128)
@@ -21,7 +21,7 @@
 /*
  * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
  * Portions Copyright (c) 2011 Martin Matuska <mm@FreeBSD.org>
- * Copyright (c) 2013 by Delphix. All rights reserved.
+ * Copyright (c) 2013, 2014 by Delphix. All rights reserved.
  * Copyright (c) 2014, Joyent, Inc. All rights reserved.
  * Copyright (c) 2014 RackTop Systems.
  */
@@ -1603,6 +1603,12 @@ dsl_dataset_stats(dsl_dataset_t *ds, nvl
 		    ds->ds_phys->ds_unique_bytes);
 		get_clones_stat(ds, nv);
 	} else {
+		if (ds->ds_prev != NULL && ds->ds_prev != dp->dp_origin_snap) {
+			char buf[MAXNAMELEN];
+			dsl_dataset_name(ds->ds_prev, buf);
+			dsl_prop_nvlist_add_string(nv, ZFS_PROP_PREV_SNAP, buf);
+		}
+
 		dsl_dir_stats(ds->ds_dir, nv);
 	}
 

Modified: head/sys/cddl/contrib/opensolaris/uts/common/sys/fs/zfs.h
==============================================================================
--- head/sys/cddl/contrib/opensolaris/uts/common/sys/fs/zfs.h	Tue Jul  1 22:32:11 2014	(r268127)
+++ head/sys/cddl/contrib/opensolaris/uts/common/sys/fs/zfs.h	Tue Jul  1 22:42:53 2014	(r268128)
@@ -151,6 +151,7 @@ typedef enum {
 	ZFS_PROP_FILESYSTEM_COUNT,
 	ZFS_PROP_SNAPSHOT_COUNT,
 	ZFS_PROP_REDUNDANT_METADATA,
+	ZFS_PROP_PREV_SNAP,
 	ZFS_NUM_PROPS
 } zfs_prop_t;

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