linux-kernel - Re: [PATCH 1/3] rust: implement `kernel::sync::Refcount`

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Message-ID: <87cykfpuqd.fsf@kernel.org>
Date: Fri, 04 Oct 2024 20:51:22 +0200
From: Andreas Hindborg <a.hindborg@...nel.org>
To: "Gary Guo" <gary@...yguo.net>
Cc: "Miguel Ojeda" <ojeda@...nel.org>,  "Alex Gaynor"
 <alex.gaynor@...il.com>,  "Boqun Feng" <boqun.feng@...il.com>,
  Björn Roy
 Baron <bjorn3_gh@...tonmail.com>,  "Benno Lossin"
 <benno.lossin@...ton.me>,  "Alice Ryhl" <aliceryhl@...gle.com>,  "Trevor
 Gross" <tmgross@...ch.edu>,  "Martin Rodriguez Reboredo"
 <yakoyoku@...il.com>,  "Will Deacon" <will@...nel.org>,  "Peter Zijlstra"
 <peterz@...radead.org>,  "Mark Rutland" <mark.rutland@....com>,  "Dirk
 Behme" <dirk.behme@...bosch.com>,  <linux-kernel@...r.kernel.org>,
  <rust-for-linux@...r.kernel.org>
Subject: Re: [PATCH 1/3] rust: implement `kernel::sync::Refcount`

Hi Gary,

"Gary Guo" <gary@...yguo.net> writes:

[...]

> diff --git a/rust/helpers/refcount.c b/rust/helpers/refcount.c
> index f47afc148ec3..39649443426b 100644
> --- a/rust/helpers/refcount.c
> +++ b/rust/helpers/refcount.c
> @@ -8,11 +8,26 @@ refcount_t rust_helper_REFCOUNT_INIT(int n)
>  	return (refcount_t)REFCOUNT_INIT(n);
>  }
>
> +unsigned int rust_helper_refcount_read(refcount_t *r)
> +{
> +	return refcount_read(r);
> +}

+EXPORT_SYMBOL_GPL(rust_helper_refcount_read);

> +
> +void rust_helper_refcount_set(refcount_t *r, int n)
> +{
> +	refcount_set(r, n);
> +}

+EXPORT_SYMBOL_GPL(rust_helper_refcount_set);

BR Andreas