A partitionid column has been added to the output of the sp_familylock stored procedure.
sp_familylock
Table lock and fine-grained lock values for partitionid are 0. partitionid is populated only for partition-level locks.
spid locktype table_id partitionid page row… ---- ------------------ ----------- ------------- ----- ---- 0 Ex_partition 576002052 576004423 0 0 0 Sh_partition_intent 1417053053 1417053053 0 0