[LU-2956] Tracker for technical debts found in master branch

• Type: Improvement
• Resolution: Done
• Priority: Minor
• Affects Version/s: Lustre 2.4.0

Epic/Theme

Debts Technical

• Assignee: Alex Zhuravlev
• Reporter: Alex Zhuravlev

Description

Possible debts for fixing:

OSD API

• transaction start first, then lock (LU-10048)

OSC/LOV

• brw methods
• pre-CLIO structures/functions

OBD API

• legacy methods

OFD

• pass env to ofd_lvbo methods
• object in lvb

MDD

• use local object library for local objects
• remove struct md_attr
• remove sp_cr_mode

MDT

• MDT_FL_* flags (related to dropped upcalls)
• use local object library for local objects
• start/stop hooks (MDD library)

LLOG

• serialised, hard to use out of order (DNE)

Configuration

• pretty complicated, few stages, etc

OSP

• batching (LU-4009)
• create striping on truncate to assign objects atomically
• drop OSP objects immediately after creation