The article discusses this in the conclusion: > We are going to submit this work for inclusion in the main kernel source tree, but most likely not in its curre

The article discusses this in the conclusion: > We are going to submit this work for inclusion in the main kernel source tree, but most likely not in its current form. Although the results look encouraging we have to remember that Linux is a highly portable operating system: it runs on powerful servers as well as small resource constrained IoT devices and on many other CPU architectures as well. The current version of the patches just optimises disk encryption for a particular workload on a particular architecture, but Linux needs a solution which runs smoothly everywhere. That is, they think their current patch is too specialized for their own use-case to warrant inclusion in the mainline kernel without significant adaptation.