linux-kernel - Re: [PATCH v4] rust: adding UniqueRefCounted and UniqueRef types

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Message-ID: <87frjr8oxf.fsf@kernel.org>
Date: Wed, 05 Mar 2025 16:42:04 +0100
From: Andreas Hindborg <a.hindborg@...nel.org>
To: "Alice Ryhl" <aliceryhl@...gle.com>
Cc: "Oliver Mangold" <oliver.mangold@...me>,  "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>,
  "Trevor Gross" <tmgross@...ch.edu>,  <rust-for-linux@...r.kernel.org>,
  <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v4] rust: adding UniqueRefCounted and UniqueRef types

"Alice Ryhl" <aliceryhl@...gle.com> writes:

> On Wed, Mar 5, 2025 at 3:56 PM Oliver Mangold <oliver.mangold@...me> wrote:
>>

[...]

>
> What is the use-case for these abstractions?

Missed this Q. It is for asserting uniqueness of a reference to a block
layer request [1].


Best regards,
Andreas Hindborg



[1] https://github.com/metaspace/linux/blob/44dd1c6eff584475f13e2a73eb4ad25df17d0d55/rust/kernel/block/mq/request.rs#L406