On 29.11.18 г. 18:43 ч., Jean Fobe wrote: > Hi all, > I've been studying LZ4 and other compression algorithms on the > kernel, and seen other projects such as zram and ubifs using the > crypto api. Is there a technical reason for not using the crypto api > for compression (and possibly for encryption) in btrfs? > I did not find any design/technical implementation choices in > btrfs development in the developer's FAQ on the wiki. If I completely > missed it, could someone point me in the right direction? > Lastly, if there is no technical reason for this, would it be > something interesting to have implemented? I personally think it would be better if btrfs' exploited the generic framework. And in fact when you look at zstd, btrfs does use the generic, low-level ZSTD routines but not the crypto library wrappers. If I were I'd try and convert zstd (since it's the most recently added algorithm) to using the crypto layer to see if there are any lurking problems. > > Best regards >
