linux-kernel - Re: [PATCH v9 3/7] rust: error: add EDEADLK

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Message-ID: <20260102232753.5b5a8fa1@nimda>
Date: Fri, 2 Jan 2026 23:27:53 +0300
From: Onur Özkan <work@...rozkan.dev>
To: rust-for-linux@...r.kernel.org
Cc: lossin@...nel.org, lyude@...hat.com, ojeda@...nel.org,
 alex.gaynor@...il.com, boqun.feng@...il.com, gary@...yguo.net,
 a.hindborg@...nel.org, aliceryhl@...gle.com, tmgross@...ch.edu,
 dakr@...nel.org, peterz@...radead.org, mingo@...hat.com, will@...nel.org,
 longman@...hat.com, felipe_life@...e.com, daniel@...lak.dev,
 daniel.almeida@...labora.com, thomas.hellstrom@...ux.intel.com,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH v9 3/7] rust: error: add EDEADLK

On Fri,  2 Jan 2026 20:52:58 +0300
Onur Özkan <work@...rozkan.dev> wrote:

> This is needed for the ww_mutex implementation so
> we can handle EDEADLK on lock attempts.
> 
> Signed-off-by: Onur Özkan <work@...rozkan.dev>

I forgot to include

	Reviewed-by: Lyude Paul <lyude@...hat.com>
	Reviewed-by: Daniel Almeida <daniel.almeida@...labora.com>

tags from the v7 series for this file. :(

> ---
>  rust/kernel/error.rs | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/rust/kernel/error.rs b/rust/kernel/error.rs
> index 258b12afdcba..c2b95db23abc 100644
> --- a/rust/kernel/error.rs
> +++ b/rust/kernel/error.rs
> @@ -66,6 +66,7 @@ macro_rules! declare_err {
>      declare_err!(EPIPE, "Broken pipe.");
>      declare_err!(EDOM, "Math argument out of domain of func.");
>      declare_err!(ERANGE, "Math result not representable.");
> +    declare_err!(EDEADLK, "Resource deadlock avoided.");
>      declare_err!(EOVERFLOW, "Value too large for defined data
> type."); declare_err!(ETIMEDOUT, "Connection timed out.");
>      declare_err!(ERESTARTSYS, "Restart the system call.");