[LU-3276] reduce a stack usage in ldlm lock enq

• Type: Improvement
• Resolution: Unresolved
• Priority: Minor
• Affects Version/s: Lustre 2.4.0
• Labels: patch
• Assignee: Alexey Lyashkov
• Reporter: Alexey Lyashkov

Description

ldlm_cli_enqueue_local pass a pointers to callback as separate parameters, but we may save a stack by creating that structure at top (anyway it's const) and pass as single pointer.