From: Peter Zijlstra <peterz@infradead.org>
To: Alice Ryhl <aliceryhl@google.com>
Cc: "Miguel Ojeda" <ojeda@kernel.org>,
"Alex Gaynor" <alex.gaynor@gmail.com>,
"Wedson Almeida Filho" <wedsonaf@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@samsung.com>,
"Alexander Viro" <viro@zeniv.linux.org.uk>,
"Christian Brauner" <brauner@kernel.org>,
"Greg Kroah-Hartman" <gregkh@linuxfoundation.org>,
"Arve Hjønnevåg" <arve@android.com>,
"Todd Kjos" <tkjos@android.com>,
"Martijn Coenen" <maco@android.com>,
"Joel Fernandes" <joel@joelfernandes.org>,
"Carlos Llamas" <cmllamas@google.com>,
"Suren Baghdasaryan" <surenb@google.com>,
"Dan Williams" <dan.j.williams@intel.com>,
"Matthew Wilcox" <willy@infradead.org>,
"Thomas Gleixner" <tglx@linutronix.de>,
"Daniel Xu" <dxu@dxuuu.xyz>,
"Martin Rodriguez Reboredo" <yakoyoku@gmail.com>,
"Trevor Gross" <tmgross@umich.edu>,
linux-kernel@vger.kernel.org, rust-for-linux@vger.kernel.org,
linux-fsdevel@vger.kernel.org, "Kees Cook" <kees@kernel.org>
Subject: Re: [PATCH v8 1/8] rust: types: add `NotThreadSafe`
Date: Thu, 25 Jul 2024 17:30:08 +0200 [thread overview]
Message-ID: <20240725153008.GK13387@noisy.programming.kicks-ass.net> (raw)
In-Reply-To: <CAH5fLggOo-TErSktC6qmyZpMGVu-M8rFXgvfi3N0Z_u63C3EyA@mail.gmail.com>
On Thu, Jul 25, 2024 at 05:09:14PM +0200, Alice Ryhl wrote:
> > As per always for not being able to read rust; how does this extend to
> > get_task_struct()? Once you've taken a reference on current, you should
> > be free to pass it along to whomever.
>
> Once you take a reference on current, it becomes thread-safe. This is
> because taking a reference creates a value of type ARef<Task> rather
> than TaskRef, and ARef<Task> is considered thread-safe.
Ignoring comments, there isn't a single mention of ARef there. Where
does it come from?
next prev parent reply other threads:[~2024-07-25 15:30 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-07-25 14:27 [PATCH v8 0/8] File abstractions needed by Rust Binder Alice Ryhl
2024-07-25 14:27 ` [PATCH v8 1/8] rust: types: add `NotThreadSafe` Alice Ryhl
2024-07-25 14:37 ` Peter Zijlstra
2024-07-25 15:09 ` Alice Ryhl
2024-07-25 15:30 ` Peter Zijlstra [this message]
2024-07-25 15:32 ` Alice Ryhl
2024-08-07 10:59 ` Gary Guo
2024-07-25 14:27 ` [PATCH v8 2/8] rust: task: add `Task::current_raw` Alice Ryhl
2024-08-07 14:41 ` Gary Guo
2024-07-25 14:27 ` [PATCH v8 3/8] rust: file: add Rust abstraction for `struct file` Alice Ryhl
2024-08-06 8:44 ` Benno Lossin
2024-08-06 8:48 ` Alice Ryhl
2024-08-06 19:29 ` Boqun Feng
2024-08-07 8:50 ` Alice Ryhl
2024-08-07 14:46 ` Boqun Feng
2024-08-07 21:59 ` Alice Ryhl
2024-08-08 16:04 ` Boqun Feng
2024-07-25 14:27 ` [PATCH v8 4/8] rust: cred: add Rust abstraction for `struct cred` Alice Ryhl
2024-08-07 14:53 ` Gary Guo
2024-07-25 14:27 ` [PATCH v8 5/8] rust: security: add abstraction for secctx Alice Ryhl
2024-08-07 14:57 ` Gary Guo
2024-07-25 14:27 ` [PATCH v8 6/8] rust: file: add `FileDescriptorReservation` Alice Ryhl
2024-08-07 15:04 ` Gary Guo
2024-07-25 14:27 ` [PATCH v8 7/8] rust: file: add `Kuid` wrapper Alice Ryhl
2024-07-25 14:27 ` [PATCH v8 8/8] rust: file: add abstraction for `poll_table` Alice Ryhl
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