[PATCH v14 1/9] rust: types: Add Ownable/Owned types

[Danilo Krummrich]

On Wed Feb 4, 2026 at 12:56 PM CET, Andreas Hindborg wrote:
> From: Asahi Lina <lina+kernel at asahilina.net>
>
> By analogy to `AlwaysRefCounted` and `ARef`, an `Ownable` type is a
> (typically C FFI) type that *may* be owned by Rust, but need not be. Unlike
> `AlwaysRefCounted`, this mechanism expects the reference to be unique
> within Rust, and does not allow cloning.
>
> Conceptually, this is similar to a `KBox<T>`, except that it delegates
> resource management to the `T` instead of using a generic allocator.
>
> This change is a derived work based on work by Asahi Lina
> <lina+kernel at asahilina.net> [1] and Oliver Mangold <oliver.mangold at pm.me>.
>
> Link: https://lore.kernel.org/rust-for-linux/20250202-rust-page-v1-1-e3170d7fe55e@asahilina.net/ [1]
> Signed-off-by: Andreas Hindborg <a.hindborg at kernel.org>

Given the From: line above, this needs Lina's SoB.

This patch was also originally posted by Abdiel and Boqun and I think we should
account for this. I mentioned this in a couple of previous versions already,
e.g. in [1]. I think we should account for this.

[1] https://lore.kernel.org/all/cc28d048-5e0f-4f0e-b0f2-1b9e240f639b@kernel.org/