[LU-5311] LFSCK 4: don't disable creates for all sequences if one bad LAST_ID is found

• Type: Bug
• Resolution: Duplicate
• Priority: Minor
• Severity: 3
• Assignee: WC Triage
• Reporter: Andreas Dilger

Description

When LFSCK detects a corrupt or missing LAST_ID, it currently disables creates for all sequences, even if this is not necessary:

        /* Currently, for safe, we do not distinguish which LAST_ID is broken,
         * we may do that in the future.
         * Return -ENOSPC until the LAST_ID rebuilt. */
        if (unlikely(ofd->ofd_lastid_rebuilding))
                GOTO(out_sem, rc = -ENOSPC);

However, with multiple MDTs (FID-on-OST) there may be creates in sequences that could continue, or the problem may be in a sequence that have been filled and is no longer in use so there is no value to block all creates.