From: Boqun Feng <boqun.feng@gmail.com>
To: Benno Lossin <benno.lossin@proton.me>
Cc: "Miguel Ojeda" <ojeda@kernel.org>,
"Wedson Almeida Filho" <wedsonaf@gmail.com>,
"Alex Gaynor" <alex.gaynor@gmail.com>,
"Gary Guo" <gary@garyguo.net>,
"Björn Roy Baron" <bjorn3_gh@protonmail.com>,
"Alice Ryhl" <aliceryhl@google.com>,
"Andreas Hindborg" <nmi@metaspace.dk>,
rust-for-linux@vger.kernel.org, linux-kernel@vger.kernel.org,
"Asahi Lina" <lina@asahilina.net>
Subject: Re: [PATCH v3 08/13] rust: init: Add functions to create array initializers
Date: Sun, 30 Jul 2023 20:00:33 -0700 [thread overview]
Message-ID: <ZMcj0TswxyCu5hpd@boqun-archlinux> (raw)
In-Reply-To: <20230729090838.225225-9-benno.lossin@proton.me>
On Sat, Jul 29, 2023 at 09:10:02AM +0000, Benno Lossin wrote:
[...]
> +/// Initializes an array by initializing each element via the provided initializer.
> +///
> +/// # Examples
> +///
> +/// ```rust
> +/// use kernel::{sync::{Arc, Mutex}, init::pin_init_array_from_fn, new_mutex};
> +/// let array: Arc<[Mutex<usize>; 1_000_000_000]>=
This is nice, but (if I got my math correct) it requires ~30G memory on
a 64bit machine, and when this example got generated as a kunit test,
my poor VM took forever to finish it ;-) ;-) ;-) Maybe descrease it to,
say, 1000?
Regards,
Boqun
> +/// Arc::pin_init(pin_init_array_from_fn(|i| new_mutex!(i))).unwrap();
> +/// assert_eq!(array.len(), 1_000_000_000);
> +/// ```
[...]
next prev parent reply other threads:[~2023-07-31 3:01 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-07-29 9:09 [PATCH v3 00/13] Quality of life improvements for pin-init Benno Lossin
2023-07-29 9:09 ` [PATCH v3 01/13] rust: init: consolidate init macros Benno Lossin
2023-07-29 9:09 ` [PATCH v3 02/13] rust: init: make `#[pin_data]` compatible with conditional compilation of fields Benno Lossin
2023-08-01 10:50 ` Alice Ryhl
2023-08-02 17:47 ` Gary Guo
2023-08-05 17:04 ` Martin Rodriguez Reboredo
2023-07-29 9:09 ` [PATCH v3 03/13] rust: add derive macro for `Zeroable` Benno Lossin
2023-07-31 2:51 ` Boqun Feng
2023-07-29 9:09 ` [PATCH v3 04/13] rust: init: make guards in the init macros hygienic Benno Lossin
2023-08-02 17:52 ` Gary Guo
2023-07-29 9:09 ` [PATCH v3 05/13] rust: init: wrap type checking struct initializers in a closure Benno Lossin
2023-08-02 17:52 ` Gary Guo
2023-07-29 9:09 ` [PATCH v3 06/13] rust: init: make initializer values inaccessible after initializing Benno Lossin
2023-08-02 17:59 ` Gary Guo
2023-07-29 9:09 ` [PATCH v3 07/13] rust: init: add `..Zeroable::zeroed()` syntax for zeroing all missing fields Benno Lossin
2023-08-02 18:05 ` Gary Guo
2023-07-29 9:10 ` [PATCH v3 08/13] rust: init: Add functions to create array initializers Benno Lossin
2023-07-31 3:00 ` Boqun Feng [this message]
2023-08-05 17:11 ` Martin Rodriguez Reboredo
2023-08-06 16:07 ` Gary Guo
2023-07-29 9:10 ` [PATCH v3 09/13] rust: init: add support for arbitrary paths in init macros Benno Lossin
2023-08-06 16:07 ` Gary Guo
2023-07-29 9:10 ` [PATCH v3 10/13] rust: init: implement `Zeroable` for `UnsafeCell<T>` and `Opaque<T>` Benno Lossin
2023-08-05 17:12 ` Martin Rodriguez Reboredo
2023-08-06 16:08 ` Gary Guo
2023-07-29 9:10 ` [PATCH v3 11/13] rust: init: make `PinInit<T, E>` a supertrait of `Init<T, E>` Benno Lossin
2023-08-06 16:09 ` Gary Guo
2023-07-29 9:10 ` [PATCH v3 12/13] rust: init: add `{pin_}chain` functions to `{Pin}Init<T, E>` Benno Lossin
2023-08-05 17:15 ` Martin Rodriguez Reboredo
2023-07-29 9:10 ` [PATCH v3 13/13] rust: init: update expanded macro explanation Benno Lossin
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