[LU-2511] Disallow secretly (un)writable proc entries

• Type: Improvement
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.4.0
• Affects Version/s: Lustre 2.4.0
• Labels: patch procfs
• Assignee: Keith Mannthey (Inactive)
• Reporter: John Hammond

Description

Several proc entries (rename_stats, brw_stats, osc_stats, brw_stats) are writable but do not indicate so in their modes. Others srpc_rules are the other way around.