[LU-12421] lfs ladvise range end/length off by 1

• Type: Bug
• Resolution: Unresolved
• Priority: Minor
• Affects Version/s: Lustre 2.12.3
• Severity: 3
• Assignee: Li Xi
• Reporter: Patrick Farrell (Inactive)

Description

lfs ladvise mistakenly treats ranges like 0-1M as [0,1M], and requests action on:
0,1045876

But this is actually 1M+1.

We need to correct it to take action on [0,1M).