lib/thin/thin.c           |   43 +++++++++++++++++++++++++++++++++++++++++++
 libdm/ioctl/libdm-iface.c |   13 +++++++++----
 2 files changed, 52 insertions(+), 4 deletions(-)

diff --git a/lib/thin/thin.c b/lib/thin/thin.c
index ab22f7b..f6090c0 100644
--- a/lib/thin/thin.c
+++ b/lib/thin/thin.c
@@ -491,6 +491,48 @@ static int _thin_text_export(const struct lv_segment *seg, struct formatter *f)
 }
 
 #ifdef DEVMAPPER_SUPPORT
+static int _thin_table_matches(struct dev_manager *dm, struct dm_pool *mem,
+			       struct logical_volume *lv)
+			       //struct lv_segment *lv_seg)
+{
+	int r = 0;
+	struct dm_task *dmt;
+	const char *uuid
+	struct load_segment *seg;
+	uint64_t seg_start = 0;
+
+	// get node with dlid for thin device, how to I get a handle on the dtree?  not in activation so...
+	//dnode = dm_tree_find_node_by_uuid(dtree, uuid);
+	// have dev_manager.c caller use _create_partial_dtree()
+
+	if (!(uuid = build_dm_uuid(dm->mem, lv->lvid.s, lv_layer(lv))))
+		return_0;
+	if ((dnode = dm_tree_find_node_by_uuid(dtree, uuid)))
+
+
+	if (!(dmt = dm_task_create(DM_DEVICE_RELOAD))) {
+		log_error("Failed to create device-mapper task struct");
+		return 0;
+	}
+
+	if (!dm_task_set_major(dmt, dnode->info.major) ||
+	    !dm_task_set_minor(dmt, dnode->info.minor)) {
+		log_error("Failed to set device number for %s reload.", dnode->name);
+		goto out;
+	}
+
+	if (dnode->props.read_only && !dm_task_set_ro(dmt)) {
+		log_error("Failed to set read only flag for %s", dnode->name);
+		goto out;
+	}
+
+	dm_list_iterate_items(seg, &dnode->props.segs)
+		// override device_id with desired id, then run through match?
+		if (!_emit_segment(dmt, dnode->info.major, dnode->info.minor,
+				   seg, &seg_start))
+			goto_out;
+}
+
 static int _thin_add_target_line(struct dev_manager *dm,
 				 struct dm_pool *mem,
 				 struct cmd_context *cmd __attribute__((unused)),
@@ -699,6 +741,7 @@ static struct segtype_handler _thin_ops = {
 	.text_import = _thin_text_import,
 	.text_export = _thin_text_export,
 #ifdef DEVMAPPER_SUPPORT
+	.table_matches = _thin_table_matches,
 	.add_target_line = _thin_add_target_line,
 	.target_percent = _thin_target_percent,
 	.target_present = _thin_target_present,
diff --git a/libdm/ioctl/libdm-iface.c b/libdm/ioctl/libdm-iface.c
index b6f9d09..0906f7e 100644
--- a/libdm/ioctl/libdm-iface.c
+++ b/libdm/ioctl/libdm-iface.c
@@ -1382,7 +1382,7 @@ uint64_t dm_task_get_existing_table_size(struct dm_task *dmt)
 	return dmt->existing_table_size;
 }
 
-static int _reload_with_suppression_v4(struct dm_task *dmt)
+static int _existing_table_matches(struct dm_task *dmt)
 {
 	struct dm_task *task;
 	struct target *t1, *t2;
@@ -1450,12 +1450,17 @@ static int _reload_with_suppression_v4(struct dm_task *dmt)
 
 no_match:
 	dm_task_destroy(task);
+	return 0;
+}
+
+static int _reload_with_suppression_v4(struct dm_task *dmt)
+{
+	if (_existing_table_matches(dmt))
+		return 1;
 
 	/* Now do the original reload */
 	dmt->suppress_identical_reload = 0;
-	r = dm_task_run(dmt);
-
-	return r;
+	return dm_task_run(dmt);
 }
 
 static int _check_children_not_suspended_v4(struct dm_task *dmt, uint64_t device)