[LU-12981] Make a maximal transfer size check accurately.

• Type: Bug
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.14.0
• Severity: 3
• Assignee: Alexey Lyashkov
• Reporter: Alexey Lyashkov

Description

LU-12140 introduce a maximal transfer size check, but it make not accurately.
1) it have lack check for the IOV/KIOV based MD's.
2) It have applied to incoming buffers, but local buffers can be very large to hold a several incoming transfers.

Lets fix these defects.