linux-kernel - Re: [PATCH v1 1/2] rust: Add cpu

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Message-ID: <aJm6WGaxITeIxtJc@google.com>
Date: Mon, 11 Aug 2025 09:39:36 +0000
From: Alice Ryhl <aliceryhl@...gle.com>
To: FUJITA Tomonori <fujita.tomonori@...il.com>
Cc: a.hindborg@...nel.org, alex.gaynor@...il.com, ojeda@...nel.org, 
	anna-maria@...utronix.de, bjorn3_gh@...tonmail.com, boqun.feng@...il.com, 
	dakr@...nel.org, frederic@...nel.org, gary@...yguo.net, jstultz@...gle.com, 
	linux-kernel@...r.kernel.org, lossin@...nel.org, lyude@...hat.com, 
	rust-for-linux@...r.kernel.org, sboyd@...nel.org, tglx@...utronix.de, 
	tmgross@...ch.edu, acourbot@...dia.com, daniel.almeida@...labora.com
Subject: Re: [PATCH v1 1/2] rust: Add cpu_relax() helper

On Mon, Aug 11, 2025 at 01:10:37PM +0900, FUJITA Tomonori wrote:
> Add cpu_relax() helper in preparation for supporting
> read_poll_timeout().
> 
> Signed-off-by: FUJITA Tomonori <fujita.tomonori@...il.com>

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

> +pub fn cpu_relax() {
> +    // SAFETY: Always safe to call.
> +    unsafe { bindings::cpu_relax() }
> +}

Let's mark this #[inline].

Alice