linux-kernel - Re: [PATCH v2] rust: rbtree: add immutable cursor

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Message-ID: <0d8b8918-fe90-4eca-989a-d24cf95c1dd5@kernel.org>
Date: Wed, 10 Sep 2025 21:42:21 +0200
From: Danilo Krummrich <dakr@...nel.org>
To: John Hubbard <jhubbard@...dia.com>
Cc: Miguel Ojeda <miguel.ojeda.sandonis@...il.com>,
 Alice Ryhl <aliceryhl@...gle.com>, Vitaly Wool <vitaly.wool@...sulko.se>,
 rust-for-linux@...r.kernel.org, linux-kernel@...r.kernel.org,
 Alex Gaynor <alex.gaynor@...il.com>, Boqun Feng <boqun.feng@...il.com>,
 Gary Guo <gary@...yguo.net>, Bjorn Roy Baron <bjorn3_gh@...tonmail.com>,
 Benno Lossin <lossin@...nel.org>, Andreas Hindborg <a.hindborg@...nel.org>,
 Trevor Gross <tmgross@...ch.edu>, Onur Özkan
 <work@...rozkan.dev>
Subject: Re: [PATCH v2] rust: rbtree: add immutable cursor

On 9/10/25 9:40 PM, John Hubbard wrote:
> It leaves unanswered, the question of whether (and how) to use something
> like the &raw feature, which requires Rust 1.82.0, given that the
> stated min Rust version is 1.78.

The trick is that we have the option to enable unstable features that (in the
exact same way) have been stabilized in recent versions, without facing any
downsides.