linux-kernel - Re: [PATCH v7 3/6] rust: error: add EDEADLK

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Message-Id: <A7DC9B39-9BA2-4EBA-B6A3-6153C2942E83@collabora.com>
Date: Tue, 25 Nov 2025 13:13:58 -0300
From: Daniel Almeida <daniel.almeida@...labora.com>
To: Onur Özkan <work@...rozkan.dev>
Cc: rust-for-linux@...r.kernel.org,
 lossin@...nel.org,
 lyude@...hat.com,
 ojeda@...nel.org,
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 boqun.feng@...il.com,
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 aliceryhl@...gle.com,
 tmgross@...ch.edu,
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 peterz@...radead.org,
 mingo@...hat.com,
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 felipe_life@...e.com,
 daniel@...lak.dev,
 bjorn3_gh@...tonmail.com,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH v7 3/6] rust: error: add EDEADLK



> On 1 Nov 2025, at 13:10, 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>
> ---
> rust/kernel/error.rs | 1 +
> 1 file changed, 1 insertion(+)
> 
> diff --git a/rust/kernel/error.rs b/rust/kernel/error.rs
> index 1c0e0e241daa..9bf1072cfe19 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.");
> -- 
> 2.51.2
> 
> 

Reviewed-by: Daniel Almeida <daniel.almeida@...labora.com>