linux-kernel - Re: [PATCH] Rust: Implement a unique reference type URef supplementing ARef

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Message-ID: <87r03imhtv.fsf@kernel.org>
Date: Fri, 28 Feb 2025 12:25:48 +0100
From: Andreas Hindborg <a.hindborg@...nel.org>
To: "Oliver Mangold" <oliver.mangold@...me>
Cc: 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@...nel.org>,Alice Ryhl <aliceryhl@...gle.com>,
	Trevor Gross <tmgross@...ch.edu>,<linux-kernel@...r.kernel.org>,
	<rust-for-linux@...r.kernel.org>
Subject: Re: [PATCH] Rust: Implement a unique reference type URef
 supplementing ARef

Andreas Hindborg <a.hindborg@...nel.org> writes:

> Hi Oliver,
>
> "Oliver Mangold" <oliver.mangold@...me> writes:
>
>> For usage with block-mq, we found that having a variant of ARef which is guaranteed to be unique is useful. As chances are it is useful in general, I implemented it as kernel::types::URef. The difference between ARef and URef is basically the same as between Arc and UniqueArc.
>
> Wrap at 75 characters please :)
>

Also, be sure to Cc relevant maintainers and reviewers (I did so in this
reply). Use scripts/checkpatch.pl and refer to [1]. You can also use
`b4` [2] to get a lot of automation.


Best regards,
Andreas Hindborg


[1] https://docs.kernel.org/process/submitting-patches.html
[2] https://b4.docs.kernel.org/en/latest/contributor/prep.html