[LU-19992] FLR-EC-WR: reserve OBD_CONNECT2 flag for immediate write EC

• Type: Technical task
• Resolution: Fixed
• Priority: Medium
• Fix Version/s: Lustre 2.18.0
• Labels: FLR-EC FLR-EC-WR
• Severity: 3
• Assignee: Patrick Farrell
• Reporter: Patrick Farrell

Description

Reserve the next available OBD_CONNECT2 flag for immediate write erasure coding.

Proposed: OBD_CONNECT2_FLR_EC_WR at 0x80000000000ULL (next after OBD_CONNECT2_NO_APPEND at 0x40000000000ULL).

Per the process documented in lustre_idl.h, this requires:

• Email [e-mail] and [e-mail] to reserve the value
• Submit a small patch that adds the flag, updates obd_connect_names[], adds to check_obd_connect_data(), and updates wiretests

This follows the pattern of OBD_CONNECT2_FLR_EC (0x10000000000, read-only EC) and OBD_CONNECT2_FLR_IMMED_MIRROR (0x20000000000, immediate write mirroring).

No functional implementation – just flag reservation.