TARUISI Hiroaki wrote: > Thanks for your comment. > > I think your request is reasonable but because there's > no information about a hierachy of snapshots in filesystem, > we cannot know it for now. > > In future, these information may be supplied by application > programs which manage all snapshots or backups. > Maintaining snapshot hierarchy by external application is not reliable and error prone compared to maintaining it withing the btrfs itself, probably by adding the parent treeid field for every shapshot/subvolume.
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