[LU-5666] LLAPI grouplock helpers

• Type: Bug
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.7.0
• Labels: patch
• Severity: 3
• Assignee: Bruno Faccini (Inactive)
• Reporter: Henri Doreau (Inactive)

Description

LLAPI should provide handy functions to get/put grouplock, and LFS should use them instead of directly issuing the corresponding ioctl.