linux-kernel - Re: [PATCH v7 1/9] rust: Introduce atomic API helpers

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Message-ID: <CANiq72ms11yfBVjfpV9PH6LZ3g72-Wd=5dwda3ULxc0PTnP=NA@mail.gmail.com>
Date: Wed, 16 Jul 2025 14:56:37 +0200
From: Miguel Ojeda <miguel.ojeda.sandonis@...il.com>
To: Peter Zijlstra <peterz@...radead.org>
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, Boqun Feng <boqun.feng@...il.com>, 
	linux-kernel@...r.kernel.org, rust-for-linux@...r.kernel.org, 
	lkmm@...ts.linux.dev, linux-arch@...r.kernel.org, 
	Miguel Ojeda <ojeda@...nel.org>, Alex Gaynor <alex.gaynor@...il.com>, Gary Guo <gary@...yguo.net>, 
	Björn Roy Baron <bjorn3_gh@...tonmail.com>, 
	Benno Lossin <lossin@...nel.org>, Andreas Hindborg <a.hindborg@...nel.org>, 
	Alice Ryhl <aliceryhl@...gle.com>, Trevor Gross <tmgross@...ch.edu>, 
	Danilo Krummrich <dakr@...nel.org>, Will Deacon <will@...nel.org>, Mark Rutland <mark.rutland@....com>, 
	Wedson Almeida Filho <wedsonaf@...il.com>, Viresh Kumar <viresh.kumar@...aro.org>, 
	Lyude Paul <lyude@...hat.com>, Ingo Molnar <mingo@...nel.org>, 
	Mitchell Levy <levymitchell0@...il.com>, "Paul E. McKenney" <paulmck@...nel.org>, 
	Linus Torvalds <torvalds@...ux-foundation.org>, Thomas Gleixner <tglx@...utronix.de>, 
	Alan Stern <stern@...land.harvard.edu>
Subject: Re: [PATCH v7 1/9] rust: Introduce atomic API helpers

On Wed, Jul 16, 2025 at 2:47 PM Peter Zijlstra <peterz@...radead.org> wrote:
>
> It depends on the scripts/atomic/* bits. They hardly if ever change. We
> do it this way because:
>
>  - generating these files every build is 'slow'-ish;
>  - code navigation suffers;
>  - Linus asked for this.
>
> Specifically, pretty much the entire atomic_*() namespace would
> disappear from ctags / code-browsing-tool-of-choice if we would not
> check in these files.

Makes sense, thanks. The Rust helpers one may not be the end of the
world in terms of code navigation (since people will use the Rust
abstractions and nobody should call the helpers from C), but since it
is just 1 more script in the list, I think it is best to keep it as it
is.

Cheers,
Miguel