linux-kernel - Re: [PATCH v2 1/3] rust: completion: implement initial abstraction

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Message-ID: <CANiq72kpiGQCs=XJjqZn8pgXaRXfKxopGBvGVwOXn91Nit-W8w@mail.gmail.com>
Date: Fri, 13 Jun 2025 17:51:15 +0200
From: Miguel Ojeda <miguel.ojeda.sandonis@...il.com>
To: Danilo Krummrich <dakr@...nel.org>
Cc: gregkh@...uxfoundation.org, rafael@...nel.org, ojeda@...nel.org, 
	alex.gaynor@...il.com, boqun.feng@...il.com, gary@...yguo.net, 
	bjorn3_gh@...tonmail.com, benno.lossin@...ton.me, a.hindborg@...nel.org, 
	aliceryhl@...gle.com, tmgross@...ch.edu, rust-for-linux@...r.kernel.org, 
	linux-kernel@...r.kernel.org, Ingo Molnar <mingo@...hat.com>, 
	Peter Zijlstra <peterz@...radead.org>, Juri Lelli <juri.lelli@...hat.com>, 
	Vincent Guittot <vincent.guittot@...aro.org>, Dietmar Eggemann <dietmar.eggemann@....com>, 
	Steven Rostedt <rostedt@...dmis.org>, Ben Segall <bsegall@...gle.com>, Mel Gorman <mgorman@...e.de>, 
	Valentin Schneider <vschneid@...hat.com>, Benno Lossin <lossin@...nel.org>
Subject: Re: [PATCH v2 1/3] rust: completion: implement initial abstraction

On Thu, Jun 12, 2025 at 2:18 PM Danilo Krummrich <dakr@...nel.org> wrote:
>
> Implement a minimal abstraction for the completion synchronization
> primitive.
>
> This initial abstraction only adds complete_all() and
> wait_for_completion(), since that is what is required for the subsequent
> Devres patch.
>
> Cc: Ingo Molnar <mingo@...hat.com>
> Cc: Peter Zijlstra <peterz@...radead.org>
> Cc: Juri Lelli <juri.lelli@...hat.com>
> Cc: Vincent Guittot <vincent.guittot@...aro.org>
> Cc: Dietmar Eggemann <dietmar.eggemann@....com>
> Cc: Steven Rostedt <rostedt@...dmis.org>
> Cc: Ben Segall <bsegall@...gle.com>
> Cc: Mel Gorman <mgorman@...e.de>
> Cc: Valentin Schneider <vschneid@...hat.com>
> Reviewed-by: Alice Ryhl <aliceryhl@...gle.com>
> Reviewed-by: Boqun Feng <boqun.feng@...il.com>
> Reviewed-by: Benno Lossin <lossin@...nel.org>
> Signed-off-by: Danilo Krummrich <dakr@...nel.org>

This is part of a fix, so it is a bit of an edge case, but it is just
the bits Danilo needs, so as long as nobody in the Cc list above
complains:

Acked-by: Miguel Ojeda <ojeda@...nel.org>

> +/// The [`Completion`] synchronization primitive signales when a certain task has been completed by

signals

Cheers,
Miguel