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-rw-r--r--Documentation/device-mapper/dm-raid.txt2
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diff --git a/Documentation/device-mapper/dm-raid.txt b/Documentation/device-mapper/dm-raid.txt
index e9192283e5a..ef8ba9fa58c 100644
--- a/Documentation/device-mapper/dm-raid.txt
+++ b/Documentation/device-mapper/dm-raid.txt
@@ -222,3 +222,5 @@ Version History
1.4.2 Add RAID10 "far" and "offset" algorithm support.
1.5.0 Add message interface to allow manipulation of the sync_action.
New status (STATUSTYPE_INFO) fields: sync_action and mismatch_cnt.
+1.5.1 Add ability to restore transiently failed devices on resume.
+1.5.2 'mismatch_cnt' is zero unless [last_]sync_action is "check".