[LU-16797] improve numeric NID to CPT hashing

• Type: Improvement
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.16.0
• Severity: 3
• Assignee: Chris Horn
• Reporter: Chris Horn

Description

Testing shows that the sum-by-multiplication of nid bytes method for hashing a NID to a CPT does not have good distribution for gnilnd and kfilnd NIDs. For these LNDs, use the old hash_long() method.