linux-kernel - Re: [PATCH v7 3/6] rust: irq: add support for non-threaded IRQs and handlers

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Message-Id: <DBJKEPR28MY1.1ISG6JYV3ZJK7@kernel.org>
Date: Wed, 23 Jul 2025 18:11:47 +0200
From: "Danilo Krummrich" <dakr@...nel.org>
To: "Daniel Almeida" <daniel.almeida@...labora.com>
Cc: "Boqun Feng" <boqun.feng@...il.com>, "Miguel Ojeda" <ojeda@...nel.org>,
 "Alex Gaynor" <alex.gaynor@...il.com>, "Gary Guo" <gary@...yguo.net>,
 Björn Roy Baron <bjorn3_gh@...tonmail.com>, "Andreas
 Hindborg" <a.hindborg@...nel.org>, "Alice Ryhl" <aliceryhl@...gle.com>,
 "Trevor Gross" <tmgross@...ch.edu>, "Greg Kroah-Hartman"
 <gregkh@...uxfoundation.org>, "Rafael J. Wysocki" <rafael@...nel.org>,
 "Thomas Gleixner" <tglx@...utronix.de>, "Bjorn Helgaas"
 <bhelgaas@...gle.com>, Krzysztof Wilczy´nski
 <kwilczynski@...nel.org>, "Benno Lossin" <lossin@...nel.org>,
 <linux-kernel@...r.kernel.org>, <rust-for-linux@...r.kernel.org>,
 <linux-pci@...r.kernel.org>
Subject: Re: [PATCH v7 3/6] rust: irq: add support for non-threaded IRQs and
 handlers

On Wed Jul 23, 2025 at 6:07 PM CEST, Daniel Almeida wrote:
> On top of that, we can use the
> words "interior mutability" somewhere in the example as well to make it even
> clearer.

You *can* have this example and I encourage it, I think it is valuable. You can
have spinlock or mutex for this purpose in threaded handler, no?