So awesome... The ring buffer is like a generic asynchronous system call submission mechanism. The set of supported operations is already a subset of available Linux system calls:

https://github.com/torvalds/linux/blob/master/include/uapi/l...

It almost gained support for ioctl:

https://lwn.net/Articles/810414/

Wouldn't it be cool if it gained support for other types of system calls? Something this awesome shouldn't be restricted to I/O...