linux-kernel - Re: [PATCH 2/4] rust: alloc: implement `Borrow` and `BorrowMut` for `Arc` types

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <DABBYG8W5F5U.1MXKCC6LSHBPV@kernel.org>
Date: Sun, 01 Jun 2025 18:17:05 +0200
From: "Benno Lossin" <lossin@...nel.org>
To: "Alexandre Courbot" <acourbot@...dia.com>, "Danilo Krummrich"
 <dakr@...nel.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>, "Andreas Hindborg" <a.hindborg@...nel.org>,
 "Alice Ryhl" <aliceryhl@...gle.com>, "Trevor Gross" <tmgross@...ch.edu>
Cc: <rust-for-linux@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 2/4] rust: alloc: implement `Borrow` and `BorrowMut` for
 `Arc` types

On Sun Jun 1, 2025 at 5:00 AM CEST, Alexandre Courbot wrote:
> Implement these two common traits, which allow generic types to store
> either an owned value or a reference to it, leveraging the `Deref`
> implementation.

Same here.

---
Cheers,
Benno

>
> `Arc` can only implement `Borrow`, but `UniqueArc` is able to support
> both.
>
> `ForeignOwnable` makes a call to its own `borrow` method which must be
> disambiguated.
>
> Signed-off-by: Alexandre Courbot <acourbot@...dia.com>
> ---
>  rust/kernel/sync/arc.rs | 21 ++++++++++++++++++++-
>  1 file changed, 20 insertions(+), 1 deletion(-)