linux-kernel - Re: [PATCH v2 16/27] rust: rcu: add __rust

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Message-ID: <db14215a-c545-4e99-a380-69cf24841a84@joelfernandes.org>
Date: Mon, 5 Jan 2026 10:26:48 -0500
From: Joel Fernandes <joel@...lfernandes.org>
To: Alice Ryhl <aliceryhl@...gle.com>, rust-for-linux@...r.kernel.org
Cc: linux-kernel@...r.kernel.org, Boqun Feng <boqun.feng@...il.com>,
 Gary Guo <gary@...yguo.net>, "Paul E. McKenney" <paulmck@...nel.org>,
 rcu@...r.kernel.org
Subject: Re: [PATCH v2 16/27] rust: rcu: add __rust_helper to helpers

On 1/5/2026 7:42 AM, Alice Ryhl wrote:
> This is needed to inline these helpers into Rust code.
> 
> Reviewed-by: Boqun Feng <boqun.feng@...il.com>
> Reviewed-by: Gary Guo <gary@...yguo.net>
> Signed-off-by: Alice Ryhl <aliceryhl@...gle.com>

Reviewed-by: Joel Fernandes (NVIDIA) <joel@...lfernandes.org>

Thanks.

> ---
> Cc: "Paul E. McKenney" <paulmck@...nel.org>
> Cc: Boqun Feng <boqun.feng@...il.com>
> Cc: rcu@...r.kernel.org
> ---
>  rust/helpers/rcu.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/rust/helpers/rcu.c b/rust/helpers/rcu.c
> index f1cec6583513497e996f74835ca2c6c3f4a8c954..481274c058577276e20093a1014fc49f4a40421b 100644
> --- a/rust/helpers/rcu.c
> +++ b/rust/helpers/rcu.c
> @@ -2,12 +2,12 @@
>  
>  #include <linux/rcupdate.h>
>  
> -void rust_helper_rcu_read_lock(void)
> +__rust_helper void rust_helper_rcu_read_lock(void)
>  {
>  	rcu_read_lock();
>  }
>  
> -void rust_helper_rcu_read_unlock(void)
> +__rust_helper void rust_helper_rcu_read_unlock(void)
>  {
>  	rcu_read_unlock();
>  }
>