[LU-6473] enqueue lookup lock on the parent MDT.

• Type: Bug
• Resolution: Fixed
• Priority: Major
• Fix Version/s: Lustre 2.8.0, Lustre 2.5.4
• Affects Version/s: Lustre 2.7.0, Lustre 2.5.3
• Severity: 3
• Assignee: Di Wang
• Reporter: Di Wang

Description

During unlink/migration/rename, the remote object should enqueue the lookup LOCK on the parent MDT.