On Sun, 2016-08-28 at 11:35 -0600, Chris Murphy wrote: > I don't see evidence of them in the btrfs send file, so I don't think > csums are in the stream.
hmm... isn't that kinda unfortunate not to make use of the information that's already there? IMO, to the extent this is possibly, btrfs should generally re-use csums (or compare freshly created ones with the ones already known) on copy-like operations. Cheers, Chris.
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