re invoking other tools: I built this years ago (if i'd do it again, I'd implement it with LSM, but was coming from a lab with lots of stackable fs experience,

re invoking other tools: I built this years ago (if i'd do it again, I'd implement it with LSM, but was coming from a lab with lots of stackable fs experience, so my thought process went there), used exec() to transition rule sets. https://www.usenix.net/legacy/events/lisa07/tech/full_papers/potter/potter.pdf https://www.usenix.net/legacy/events/lisa07/tech/full_papers...