On 14 Aug 2013, at 12:52, Fam Zheng wrote: > Yes, this one sounds good to have. VMDK and VHDX have this kind of > backing file status validation.
... though I'd prefer something safer than looking at mtime, for instance a sequence number that is incremented prior to any bdrv_close if a write has been done since bdrv_open. -- Alex Bligh
