[LU-4778] Update catlog if some plain log is deleted during proecessing

• Type: Bug
• Resolution: Fixed
• Priority: Critical
• Fix Version/s: Lustre 2.6.0, Lustre 2.5.2
• Severity: 3
• Assignee: Niu Yawei (Inactive)
• Reporter: Niu Yawei (Inactive)

Description

Plain log could be deleted if it becomes empty when processing catlog (see llog_cat_process()), however, we missed updating catlog and closing the destroyed plain log, that'll cause trouble when catlog close (llog_cat_close()) trying to destroy the empty plain log again.