[LU-17609] Enforce nodemap's readonly_mount in case of remount

• Type: Bug
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.16.0
• Affects Version/s: Lustre 2.16.0
• Labels: nodemap patch
• Severity: 3
• Assignee: Sebastien Buisson
• Reporter: Sebastien Buisson

Description

The readonly_mount property on nodemaps forces read-only mount from clients. Clients trying rw remount (via mount -o remount,rw) should also be forced to read-only.