Andreas, I prefer to land the patch to 2.6, because orphan is introduced by the LFSCK for MDT-OST inconsistency in 2.6. If we do not fix that in time, the namespace LFSCK on orphan may regard the orphan as update case. Although it is not fatal issue and can be handled, it is still some confused. In fact, I have made the patch already. But I will not push it to gerrit until the patch http://review.whamcloud.com/#/c/10579/ has been landed firstly, then avoid unnecessary refreshing the existing patch.
The patch has been landed to master.