[sheepdog] Question about fix_object_consistency()

[Liu Yuan]

Hi Kazum,
   I haven't get any clue what does fix_object_consistency() really fix
for? I can't come up with a real scenario for it, it blindly uses
forward_read_obj_req() to read a copy and then write it to cluster. It
seems we don't have any quorum about which copy is corrupted or stale,
if forward_write_obj_req() give us a strong consistency between replica,
why do we bother fixing the consistency?

Thanks,
Yuan