Re: [RFC] Experimental btrfs encryption

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On Tue, Mar 01, 2016 at 11:46:16AM -0500, Chris Mason wrote:
> We'll definitely move in line with the common API over time.  Thanks
> Anand for starting this!
> 
> I'd prefer that we keep it per-subvolume for now, just because
> subvolumes are so cheap and because it seems like a better collection
> point for general use.  But as the other filesystems add features we'll
> make sure and keep parity with what users expect.

We already have per-file encryption in f2fs and ext4, and both have
a compatible userspace API and ABI.  It would be a pitty to deviate
from that intead of reusing it, and if needed extending it.
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