linux-kernel - Re: [PATCH 2/2] rust: arc: remove `ArcBorrow` in favour of `WithRef`

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Message-ID: <CAH5fLgj_wQtmW4A6-4wPeP-Qmk2ga2NoVRwZDujjYvHWY7Bk3A@mail.gmail.com>
Date:   Fri, 22 Sep 2023 17:29:58 +0200
From:   Alice Ryhl <aliceryhl@...gle.com>
To:     Wedson Almeida Filho <wedsonaf@...il.com>
Cc:     rust-for-linux@...r.kernel.org, Miguel Ojeda <ojeda@...nel.org>,
        Alex Gaynor <alex.gaynor@...il.com>,
        Boqun Feng <boqun.feng@...il.com>, Gary Guo <gary@...yguo.net>,
        Björn Roy Baron <bjorn3_gh@...tonmail.com>,
        Benno Lossin <benno.lossin@...ton.me>,
        Andreas Hindborg <a.hindborg@...sung.com>,
        linux-kernel@...r.kernel.org,
        Wedson Almeida Filho <walmeida@...rosoft.com>
Subject: Re: [PATCH 2/2] rust: arc: remove `ArcBorrow` in favour of `WithRef`

On Thu, Sep 21, 2023 at 11:35 PM Wedson Almeida Filho
<wedsonaf@...il.com> wrote:
>
> From: Wedson Almeida Filho <walmeida@...rosoft.com>
>
> With GATs, we don't need a separate type to represent a borrowed object
> with a refcount, we can just use Rust's regular shared borrowing. In
> this case, we use `&WithRef<T>` instead of `ArcBorrow<'_, T>`.
>
> Co-developed-by: Boqun Feng <boqun.feng@...il.com>
> Signed-off-by: Boqun Feng <boqun.feng@...il.com>
> Signed-off-by: Wedson Almeida Filho <walmeida@...rosoft.com>

I wonder whether "WithArc" is a better name? After all, arc is short
for "atomic refcount".
I also think it's nice to include Arc in the name of the type.

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