linux-kernel - Re: [PATCH v3 08/25] rust: types: implement `Unique<T>`

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Message-ID: <CAH5fLgihauE8enXj7x4BjtpXpG+CkWDrfx=3LOwQAuRXgMxybA@mail.gmail.com>
Date: Thu, 1 Aug 2024 10:45:53 +0200
From: Alice Ryhl <aliceryhl@...gle.com>
To: Danilo Krummrich <dakr@...nel.org>
Cc: ojeda@...nel.org, alex.gaynor@...il.com, wedsonaf@...il.com, 
	boqun.feng@...il.com, gary@...yguo.net, bjorn3_gh@...tonmail.com, 
	benno.lossin@...ton.me, a.hindborg@...sung.com, akpm@...ux-foundation.org, 
	daniel.almeida@...labora.com, faith.ekstrand@...labora.com, 
	boris.brezillon@...labora.com, lina@...hilina.net, mcanal@...lia.com, 
	zhiw@...dia.com, acurrid@...dia.com, cjia@...dia.com, jhubbard@...dia.com, 
	airlied@...hat.com, ajanulgu@...hat.com, lyude@...hat.com, 
	linux-kernel@...r.kernel.org, rust-for-linux@...r.kernel.org, 
	linux-mm@...ck.org
Subject: Re: [PATCH v3 08/25] rust: types: implement `Unique<T>`

On Thu, Aug 1, 2024 at 2:07 AM Danilo Krummrich <dakr@...nel.org> wrote:
>
> Implement the `Unique` type as a prerequisite for `Box` and `Vec`
> introduced in subsequent patches.
>
> `Unique` serves as wrapper around a `NonNull`, but indicates that the
> possessor of this wrapper owns the referent.
>
> This type already exists in Rust's core library, but, unfortunately, is
> exposed as unstable API and hence shouldn't be used in the kernel.
>
> This implementation of `Unique` is almost identical, but mostly stripped
> down to the functionality we need for `Box` and `Vec`. Additionally, all
> unstable features are removed and / or replaced by stable ones.
>
> Signed-off-by: Danilo Krummrich <dakr@...nel.org>

Some of your impls could be derives, but looks ok.

Reviewed-by: Alice Ryhl <aliceryhl@...gle.com>