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SubjectRe: [PATCH 6/7] lib/lzo: implement run-length encoding
On (11/29/18 12:08), Sergey Senozhatsky wrote:
> On (11/27/18 16:19), Dave Rodgman wrote:
> >
> > This modifies the bitstream in a way which is backwards compatible
> > (i.e., we can decompress old bitstreams, but old versions of lzo
> > cannot decompress new bitstreams).
> >
>
> Hmmm... Whoa. Help me understand this:
>
> So a btrfs filesystem, compressed with the new lzo, say I run 4.21,
> won't be readable at all once I reboot under 4.19?
>
> What about compressed net traffic between servers running different
> kernel version (one with new lzo, the other one with old lzo)?
> XFRM can be compressed with lzo, can't it?

Ah, false alarm. Sorry for the noise!

You create a new lzo version in the next patch.

-ss

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