[$] The final step for huge-page swapping

For many years, Linux system administrators have gone out of their way toavoid swapping. The advent of nonvolatile memory is changing the equation,though, and swapping is starting to look interesting again - if it canperform well enough. That is not the case in current kernels, but alongstanding project to allow the swapping of transparent huge pagespromises to improve that situation considerably. That work is reaching itsfinal stage and might just enter the mainline soon.