[LU-12455] readcache max file size show/store inconsistent

• Type: Bug
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.13.0
• Severity: 3
• Assignee: Patrick Farrell (Inactive)
• Reporter: Patrick Farrell (Inactive)

Description

Readcache max file size is displayed as an unsigned, but stored as a signed.  This causes confusion when users try to set it back to the default, which is 2^64-1 (or -1), and they can't use 2^64-1.

Easy fix, patch coming.