[LU-5502] High level description of three modules and relationships

• Type: Task
• Resolution: Fixed
• Priority: Critical
• Fix Version/s: Lustre 2.7.0
• Assignee: John Hammond
• Reporter: Richard Henwood (Inactive)

Description

As part of the Code Documentation project for OpenSFS, we have agreed to do three more files.

• Add a high level description of the subsystem to the .c file that implements the module_init() function.
• Answer the question "What does this module do?"
• Explain where it sits in the layered object/device model,
• what services it provides to adjacent layers,
• what type of processing it does on incoming and outgoing requests,
  etc.

SCOPE:
+ LOD
+ OSP
+ OFD