linux-kernel - Re: [GIT PULL] [PATCH v2 0/5] rust: Task & schedule related changes for v6.17

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Message-ID: <aGKWIFVl4nwSl8SG@Mac.home>
Date: Mon, 30 Jun 2025 06:50:24 -0700
From: Boqun Feng <boqun.feng@...il.com>
To: Ingo Molnar <mingo@...nel.org>, Peter Zijlstra <peterz@...radead.org>
Cc: Ingo Molnar <mingo@...hat.com>, 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>,
	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 <benno.lossin@...ton.me>,
	Andreas Hindborg <a.hindborg@...nel.org>,
	Alice Ryhl <aliceryhl@...gle.com>, Trevor Gross <tmgross@...ch.edu>,
	Danilo Krummrich <dakr@...nel.org>,
	Nathan Chancellor <nathan@...nel.org>,
	Nick Desaulniers <nick.desaulniers+lkml@...il.com>,
	Bill Wendling <morbo@...gle.com>,	Justin Stitt <justinstitt@...gle.com>,
	FUJITA Tomonori <fujita.tomonori@...il.com>,
	Tamir Duberstein <tamird@...il.com>,	Kunwu Chan <kunwu.chan@...mail.com>,
	Mitchell Levy <levymitchell0@...il.com>,
	Martin Rodriguez Reboredo <yakoyoku@...il.com>,
	Borys Tyran <borys.tyran@...tonmail.com>,
	Christian Brauner <brauner@...nel.org>,
	Panagiotis Foliadis <pfoliadis@...teo.net>,	linux-kernel@...r.kernel.org,
 rust-for-linux@...r.kernel.org,	llvm@...ts.linux.dev
Subject: Re: [GIT PULL] [PATCH v2 0/5] rust: Task & schedule related changes
 for v6.17

On Tue, Jun 24, 2025 at 10:15:13PM -0700, Boqun Feng wrote:
> Hi Ingo & Peter,
> 
> This is the updated version from my pull request last cycle:
> 
> v1: https://lore.kernel.org/rust-for-linux/20250506045843.51258-1-boqun.feng@gmail.com/
> 
> Please take a look, thanks!
> 

Ping ;-) I forgot to add that this is a dependency for Rust version's
read_poll_timeout(), which is a dependency to a few things:

* In the `Tyr` driver:

  https://lore.kernel.org/rust-for-linux/20250628.224928.690831629261546521.fujita.tomonori@gmail.com/

* In Nova, the gpu driver:

  https://lore.kernel.org/rust-for-linux/20250619-nova-frts-v6-24-ecf41ef99252@nvidia.com/

* In the qt2025 phy driver:

  https://lore.kernel.org/lkml/20250220070611.214262-9-fujita.tomonori@gmail.com/

Thanks!

Regards,
Boqun

> Changes since v1:
> 
> - `Location::file_with_nul()` is used to avoid the C changes of
>   __might_sleep()
> 
> Regards,
> Boqun
> 
> 
> The following changes since commit 5bc34be478d09c4d16009e665e020ad0fcd0deea:
> 
>   sched/core: Reorganize cgroup bandwidth control interface file writes (2025-06-18 13:59:57 +0200)
> 
> are available in the Git repository at:
> 
>   git://git.kernel.org/pub/scm/linux/kernel/git/boqun/linux.git tags/rust-sched.2025.06.24
> 
> for you to fetch changes up to 7e611710acf966df1e14bcf4e067385e38e549a1:
> 
>   rust: task: Add Rust version of might_sleep() (2025-06-24 15:53:50 -0700)
> 
> ----------------------------------------------------------------
> Rust task & schedule changes for v6.17:
> 
> - Make Task, CondVar and PollCondVar methods inline to avoid unnecessary
>   function calls
> 
> - Add might_sleep() support for Rust code: Rust's "#[track_caller]"
>   mechanism is used so that Rust's might_sleep() doesn't need to be
>   defined as a macro
> 
> ----------------------------------------------------------------
> Boqun Feng (1):
>   rust: Introduce file_from_location()
> 
> FUJITA Tomonori (1):
>   rust: task: Add Rust version of might_sleep()
> 
> Kunwu Chan (2):
>   rust: sync: Mark CondVar::notify_*() inline
>   rust: sync: Mark PollCondVar::drop() inline
> 
> Panagiotis Foliadis (1):
>   rust: task: Mark Task methods inline
> 
>  init/Kconfig                |  3 +++
>  rust/helpers/task.c         |  6 +++++
>  rust/kernel/lib.rs          | 48 +++++++++++++++++++++++++++++++++++++
>  rust/kernel/sync/condvar.rs |  3 +++
>  rust/kernel/sync/poll.rs    |  1 +
>  rust/kernel/task.rs         | 33 +++++++++++++++++++++++++
>  6 files changed, 94 insertions(+)
> 
> -- 
> 2.39.5 (Apple Git-154)
>