Open source kernel components of Dell (RNA Networks) Fluid Cache
This was retrieved from http://opensource.dell.com/releases/FluidCache/2.1/kernel_mods/ on 6/23/2016, unpacked, and uploaded here.
This git repo is primarily as a referemce for those of us who worked on this. This block device requires the presence of several user mode components to work, and those components are not open source.