Early Patches For Kernel Lockdown Mode Set For Linux 4.12

Here's the actual request: http://lkml.iu.edu/hypermail/linux/kernel/1705.0/00987.html

Linus hasn't pulled it yet. (And it's doubtful whether he will.) It's just David Howells has requested him to do so.

...is this a BSD securelevel equivalent? It sorta looks like it.