[LU-3530] delete striped directory

• Type: Technical task
• Resolution: Fixed
• Priority: Major
• Fix Version/s: Lustre 2.6.0
• Assignee: Di Wang
• Reporter: Di Wang

Description

This is one sub-task for striped directory DNE phase II.

Client sends delete requests to the Master MDT, then Master MDT acquires all of stripe lock of the directory, and check if all of stripes are empty, then destroy all of the stripes.