Two report-only defects on the heal result-reporting surface (they do not
affect the data path or heal decisions):
- default_heal_result (set_disk/ops/heal.rs): the offline-disk branch pushed
an Offline record but fell through into the unconditional push, emitting a
second (Corrupt) record for the same disk. This grew before/after.drives to
disk_count + offline_count and misaligned every entry after the first offline
slot. Add `continue` after the offline push, drive `disk_len` and the loop
from a single `self.disks` snapshot, and assert `errs.len() == disk_len`.
- Sets::heal_format (core/sets.rs): the before/after drive lists were
pre-filled with N default placeholders and then N real entries were pushed,
yielding a 2N list whose healed status updates (indexed 0..N) landed on the
blank placeholder half. Assign the lists directly from formats_to_drives_info
(mirroring the set-level heal_format) so the healed updates hit the real
entries.
Add regression tests covering offline/online record alignment and the
NoHealRequired and heal paths of the pool-level heal_format.
Co-authored-by: heihutu <[email protected]>
