---
 libdm/.exported_symbols |    1 +
 libdm/libdevmapper.h    |    5 +++++
 libdm/libdm-deptree.c   |   21 +++++++++++++++++++++
 3 files changed, 27 insertions(+)

Index: LVM2.2.02.45/libdm/libdevmapper.h
===================================================================
--- LVM2.2.02.45.orig/libdm/libdevmapper.h	2009-05-19 14:09:42.000000000 +0200
+++ LVM2.2.02.45/libdm/libdevmapper.h	2009-05-19 14:09:45.000000000 +0200
@@ -369,6 +369,11 @@ int dm_tree_node_add_snapshot_merge_targ
 					     const char *origin_uuid,
 					     const char *cow_uuid,
 					     uint32_t chunk_size);
+int dm_tree_node_add_snapshot_shared_target(struct dm_tree_node *node,
+					     uint64_t size,
+					     const char *origin_uuid,
+					     const char *cow_uuid,
+					     uint32_t chunk_size);
 int dm_tree_node_add_error_target(struct dm_tree_node *node,
 				     uint64_t size);
 int dm_tree_node_add_zero_target(struct dm_tree_node *node,
Index: LVM2.2.02.45/libdm/libdm-deptree.c
===================================================================
--- LVM2.2.02.45.orig/libdm/libdm-deptree.c	2009-05-19 14:09:42.000000000 +0200
+++ LVM2.2.02.45/libdm/libdm-deptree.c	2009-05-19 14:23:13.000000000 +0200
@@ -34,6 +34,7 @@ enum {
 	SEG_SNAPSHOT,
 	SEG_SNAPSHOT_ORIGIN,
 	SEG_SNAPSHOT_MERGE,
+	SEG_SNAPSHOT_SHARED,
 	SEG_STRIPED,
 	SEG_ZERO,
 };
@@ -50,6 +51,7 @@ struct {
 	{ SEG_SNAPSHOT, "snapshot" },
 	{ SEG_SNAPSHOT_ORIGIN, "snapshot-origin" },
 	{ SEG_SNAPSHOT_MERGE, "snapshot-merge" },
+	{ SEG_SNAPSHOT_SHARED, "multisnapshot" },
 	{ SEG_STRIPED, "striped" },
 	{ SEG_ZERO, "zero"},
 };
@@ -1323,6 +1325,14 @@ static int _emit_segment_line(struct dm_
 			return_0;
 		EMIT_PARAMS(pos, "%s", originbuf);
 		break;
+	case SEG_SNAPSHOT_SHARED:
+		if (!_build_dev_string(originbuf, sizeof(originbuf), seg->origin))
+			return_0;
+		if (!_build_dev_string(cowbuf, sizeof(cowbuf), seg->cow))
+			return_0;
+		EMIT_PARAMS(pos, "mikulas %s %s %d", originbuf, cowbuf,
+			    seg->chunk_size);
+		break;
 	case SEG_STRIPED:
 		EMIT_PARAMS(pos, "%u %u", seg->area_count, seg->stripe_size);
 		break;
@@ -1333,6 +1343,7 @@ static int _emit_segment_line(struct dm_
 	case SEG_SNAPSHOT:
 	case SEG_SNAPSHOT_ORIGIN:
 	case SEG_SNAPSHOT_MERGE:
+	case SEG_SNAPSHOT_SHARED:
 	case SEG_ZERO:
 		break;
 	case SEG_LINEAR:
@@ -1653,6 +1664,16 @@ int dm_tree_node_add_snapshot_merge_targ
 				    SEG_SNAPSHOT_MERGE, 1, chunk_size);
 }
 
+int dm_tree_node_add_snapshot_shared_target(struct dm_tree_node *node,
+						uint64_t size,
+						const char *origin_uuid,
+						const char *cow_uuid,
+						uint32_t chunk_size)
+{
+	return _add_snapshot_target(node, size, origin_uuid, cow_uuid,
+				    SEG_SNAPSHOT_SHARED, 1, chunk_size);
+}
+
 int dm_tree_node_add_error_target(struct dm_tree_node *node,
                                      uint64_t size)
 {
Index: LVM2.2.02.45/libdm/.exported_symbols
===================================================================
--- LVM2.2.02.45.orig/libdm/.exported_symbols	2009-05-19 14:09:42.000000000 +0200
+++ LVM2.2.02.45/libdm/.exported_symbols	2009-05-19 14:09:45.000000000 +0200
@@ -63,6 +63,7 @@ dm_tree_children_use_uuid
 dm_tree_node_add_snapshot_origin_target
 dm_tree_node_add_snapshot_target
 dm_tree_node_add_snapshot_merge_target
+dm_tree_node_add_snapshot_shared_target
 dm_tree_node_add_error_target
 dm_tree_node_add_zero_target
 dm_tree_node_add_linear_target