From: Benno Lossin <benno.lossin@proton.me>
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>,
"Andreas Hindborg" <a.hindborg@samsung.com>,
"Peter Zijlstra" <peterz@infradead.org>,
"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>,
"Kees Cook" <keescook@chromium.org>,
"Matthew Wilcox" <willy@infradead.org>,
"Thomas Gleixner" <tglx@linutronix.de>,
"Daniel Xu" <dxu@dxuuu.xyz>,
linux-kernel@vger.kernel.org, rust-for-linux@vger.kernel.org,
linux-fsdevel@vger.kernel.org
Subject: Re: [PATCH v3 2/9] rust: cred: add Rust abstraction for `struct cred`
Date: Wed, 24 Jan 2024 09:51:11 +0000 [thread overview]
Message-ID: <efde6f59-2467-4645-8846-ab42214164fa@proton.me> (raw)
In-Reply-To: <CAH5fLgjKVQoTNZAJienaJpDrAPHoC+bAJdCzHsjjzme36h6wBw@mail.gmail.com>
On 19.01.24 10:52, Alice Ryhl wrote:
> On Fri, Jan 19, 2024 at 10:37 AM Benno Lossin <benno.lossin@proton.me> wrote:
>> On 1/18/24 15:36, Alice Ryhl wrote:
>>> + /// Returns the effective UID of the given credential.
>>> + pub fn euid(&self) -> bindings::kuid_t {
>>> + // SAFETY: By the type invariant, we know that `self.0` is valid.
>>
>> Is `euid` an immutable property, or why does this memory access not race
>> with something?
>
> Yes. These properties are changed by replacing the credential, so the
> credentials themselves are immutable.
I see that's good to know, I think that should be mentioned
on the docs of `Credential`.
--
Cheers,
Benno
next prev parent reply other threads:[~2024-01-24 9:51 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-01-18 14:36 [PATCH v3 0/9] File abstractions needed by Rust Binder Alice Ryhl
2024-01-18 14:36 ` [PATCH v3 1/9] rust: file: add Rust abstraction for `struct file` Alice Ryhl
2024-01-18 22:37 ` Valentin Obst
2024-01-26 15:04 ` Benno Lossin
2024-01-29 16:34 ` Alice Ryhl
2024-02-01 9:30 ` Benno Lossin
2024-02-01 9:33 ` Alice Ryhl
2024-02-01 9:38 ` Benno Lossin
2024-02-01 9:41 ` Alice Ryhl
2024-02-01 9:48 ` Benno Lossin
2024-01-18 14:36 ` [PATCH v3 2/9] rust: cred: add Rust abstraction for `struct cred` Alice Ryhl
2024-01-19 9:37 ` Benno Lossin
2024-01-19 9:52 ` Alice Ryhl
2024-01-24 9:51 ` Benno Lossin [this message]
2024-01-18 14:36 ` [PATCH v3 3/9] rust: security: add abstraction for secctx Alice Ryhl
2024-01-19 9:41 ` Benno Lossin
2024-01-18 14:36 ` [PATCH v3 4/9] rust: types: add `NotThreadSafe` Alice Ryhl
2024-01-19 9:43 ` Benno Lossin
2024-01-18 14:36 ` [PATCH v3 5/9] rust: file: add `FileDescriptorReservation` Alice Ryhl
2024-01-19 9:48 ` Benno Lossin
2024-01-18 14:36 ` [PATCH v3 6/9] rust: task: add `Task::current_raw` Alice Ryhl
2024-01-19 9:52 ` Benno Lossin
2024-01-18 14:36 ` [PATCH v3 7/9] rust: file: add `Kuid` wrapper Alice Ryhl
2024-01-24 9:55 ` Benno Lossin
2024-01-18 14:36 ` [PATCH v3 8/9] rust: file: add `DeferredFdCloser` Alice Ryhl
2024-01-22 17:59 ` Boqun Feng
2024-01-24 10:07 ` Benno Lossin
2024-01-18 14:36 ` [PATCH v3 9/9] rust: file: add abstraction for `poll_table` Alice Ryhl
2024-01-24 10:11 ` Benno Lossin
2024-01-29 17:08 ` Alice Ryhl
2024-02-01 9:33 ` Benno Lossin
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