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From: Alice Ryhl <aliceryhl@google.com>
To: jens.korinth@tuta.io
Cc: "Miguel Ojeda" <ojeda@kernel.org>,
	"Alex Gaynor" <alex.gaynor@gmail.com>,
	"Boqun Feng" <boqun.feng@gmail.com>,
	"Gary Guo" <gary@garyguo.net>,
	"Björn Roy Baron" <bjorn3_gh@protonmail.com>,
	"Benno Lossin" <benno.lossin@proton.me>,
	"Andreas Hindborg" <a.hindborg@kernel.org>,
	"Trevor Gross" <tmgross@umich.edu>,
	rust-for-linux@vger.kernel.org,
	"FUJITA Tomonori" <fujita.tomonori@gmail.com>,
	"Dirk Behme" <dirk.behme@gmail.com>,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH v4 1/3] rust: Add `OnceLite` for executing code once
Date: Wed, 27 Nov 2024 13:26:53 +0100	[thread overview]
Message-ID: <CAH5fLgj30AmuobugAgzG9vOhSOrk5SqWwguOoNeh3J2fmLRHCA@mail.gmail.com> (raw)
In-Reply-To: <20241126-pr_once_macros-v4-1-410b8ca9643e@tuta.io>

On Tue, Nov 26, 2024 at 5:41 PM Jens Korinth via B4 Relay
<devnull+jens.korinth.tuta.io@kernel.org> wrote:
>
> From: Jens Korinth <jens.korinth@tuta.io>
>
> Similar to `Once` in Rust's standard library, but with the same
> non-blocking behavior as the kernel's `DO_ONCE_LITE` macro. Abstraction
> allows easy replacement of the underlying sync mechanisms, see
>
> https://lore.kernel.org/rust-for-linux/20241109-pr_once_macros-v3-0-6beb24e0cac8@tuta.io/.
>
> Suggested-by: Boqun Feng <boqun.feng@gmail.com>
> Signed-off-by: Jens Korinth <jens.korinth@tuta.io>

> +    pub fn is_completed(&self) -> bool {
> +        self.1.load(Relaxed)
> +    }

What is the use-case for this function? Why not just have one atomic?

  parent reply	other threads:[~2024-11-27 12:27 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <8gSHb0iuAT_Wz0rR1-qsnFIVndSpW229fA0lq-fslngTt5k1ooiMw5eAIc82F26Mdma4nkyU4X7_1RLZcnQf-Q==@protonmail.internalid>
2024-11-26 16:40 ` [PATCH v4 0/3] rust: Add pr_*_once macros Jens Korinth via B4 Relay
2024-11-26 16:40   ` [PATCH v4 1/3] rust: Add `OnceLite` for executing code once Jens Korinth via B4 Relay
2024-11-26 18:57     ` Daniel Sedlak
2024-11-27 19:46       ` jens.korinth
2024-11-29  8:22         ` Daniel Sedlak
2024-11-26 19:00     ` Miguel Ojeda
2024-11-27 12:26     ` Alice Ryhl [this message]
2024-11-27 20:12       ` jens.korinth
2024-11-27 20:18         ` Alice Ryhl
2024-12-05  6:49           ` jens.korinth
2024-12-05  8:47             ` Alice Ryhl
2025-02-04 11:11     ` Andreas Hindborg
2024-11-26 16:40   ` [PATCH v4 2/3] rust: print: Add pr_*_once macros Jens Korinth via B4 Relay
2024-11-26 16:40   ` [PATCH v4 3/3] rust: error: Replace pr_warn by pr_warn_once Jens Korinth via B4 Relay
2024-11-26 17:07     ` Miguel Ojeda
2024-11-27 20:39       ` jens.korinth
2024-11-30 18:18         ` Miguel Ojeda
2024-12-05  6:30           ` jens.korinth
2024-12-05 11:55             ` Miguel Ojeda
2024-12-05 19:22               ` jens.korinth
2024-11-26 16:59   ` [PATCH v4 0/3] rust: Add pr_*_once macros Miguel Ojeda
2025-02-11 15:04   ` Andreas Hindborg
2025-02-11 15:29     ` jens.korinth
2025-02-11 15:42       ` Andreas Hindborg
2025-07-17 16:07         ` [PATCH v4 0/3] rust: Add pr_*_once macros134 Onur Özkan
2025-07-19  3:33           ` Boqun Feng
2025-07-19 16:33             ` Onur

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