[LU-16887] scrub does not handle OI->wrong inode situation

• Type: Bug
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.16.0
• Labels: patch
• Severity: 3
• Assignee: Alexander Boyko
• Reporter: Alexander Boyko

Description

The simple case when file is removed with ldiskfs mount leads to situation when OI exist and points to inode, but inode is reused. For such fid osd_fid_lookup() will always return EINPROGRESS. Scrub doesnot handle this problem.
The next check compares two oi records(from inconsistent list and a fresh oi from fid) and decides that oi is fine. But unfortunately it was added to inconsistent list base on wrong inode.

  } else if (osd_id_eq(lid, lid2)) {
               if (converted)
                       sf->sf_items_updated++;
               GOTO(out, rc = 0);
}