This solution didn't introduce it. The concepts being used have existed in Linux for quite some time. Here's a patch of mine that added (some of) it from 2005

This solution didn't introduce it. The concepts being used have existed in Linux for quite some time. Here's a patch of mine that added (some of) it from 2005: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3947be1969a9 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/lin...