[LU-2639] make lod_sync() more robust

• Type: Bug
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.17.0
• Affects Version/s: Lustre 2.4.0
• Labels: dne3 easy patch
• Severity: 3
• Assignee: Chakshu Kansal
• Reporter: Andreas Dilger

Description

Per inspection in http://review.whamcloud.com/4921, lod_sync() should call dt_sync() on all targets, even if some sub-targets return an error. Also, it should call dt_sync() on all MDT targets as well as OST targets.