I searched lore.kernel.org and couldn't find any postings that propose using this in the kernel. I'd encourage you to share a proposal, otherwise the "kernel team" will never be interested, because they'll never hear of it.

That's cool, but it'd be nice to also have a distinction between a get and a copy (like ObjC) or borrow/move (like Rust) to avoid redundant increments and decrements.

I love high quality C++ that reads like C but doesn’t throw away the STL or litter everything with const