On Wed, Jan 22, 2025 at 08:29:09AM +0100, Gerhard Wiesinger wrote: > BTW: Why does it break the ACID properties? It doesn't if implemented properly, which of course means out of place writes. The only sane way to implement compression in XFS would be using out of place writes, which we support for reflinks and which is heavily used by the new zoned mode. For the latter retrofitting compression would be relatively easy, but it first needs to get merged, then stabilize and mature, and then we'll need to see if we have enough use cases. So don't plan for it.
