WHATS_NEW                 | 4 ++++
 lib/cache_segtype/cache.c | 4 +++-
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/WHATS_NEW b/WHATS_NEW
index 75c4569..2c481ae 100644
--- a/WHATS_NEW
+++ b/WHATS_NEW
@@ -1,3 +1,7 @@
+Version 2.02.116 - 
+====================================
+  Set default cache_mode to writehrough when missing in metadata.
+
 Version 2.02.115 - 21st January 2015
 ====================================
   Report segment types without monitoring support as undefined.
diff --git a/lib/cache_segtype/cache.c b/lib/cache_segtype/cache.c
index 73839f4..afc0ec6 100644
--- a/lib/cache_segtype/cache.c
+++ b/lib/cache_segtype/cache.c
@@ -68,7 +68,9 @@ static int _cache_pool_text_import(struct lv_segment *seg,
 			return SEG_LOG_ERROR("cache_mode must be a string in");
 		if (!set_cache_pool_feature(&seg->feature_flags, str))
 			return SEG_LOG_ERROR("Unknown cache_mode in");
-	}
+	} else
+		/* When missed in metadata, it's an old stuff - use writethrough */
+		seg->feature_flags |= DM_CACHE_FEATURE_WRITETHROUGH;
 
 	if (dm_config_has_node(sn, "policy")) {
 		if (!(str = dm_config_find_str(sn, "policy", NULL)))