[LU-4928] LLAPI file lease helpers

• Type: Improvement
• Resolution: Fixed
• Priority: Blocker
• Fix Version/s: Lustre 2.7.0
• Labels: patch
• Assignee: Yang Sheng
• Reporter: Henri Doreau (Inactive)

Description

As pointed out by Andreas on http://review.whamcloud.com/#/c/10013/ the LLAPI should provide functions to get/check/put file leases.