linux-kernel - [PATCH v11 11/14] rust: sync: Expose lock::Backend

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20250717184055.2071216-12-lyude@redhat.com>
Date: Thu, 17 Jul 2025 14:38:03 -0400
From: Lyude Paul <lyude@...hat.com>
To: rust-for-linux@...r.kernel.org,
	Thomas Gleixner <tglx@...utronix.de>,
	Boqun Feng <boqun.feng@...il.com>,
	linux-kernel@...r.kernel.org,
	Daniel Almeida <daniel.almeida@...labora.com>
Cc: 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 <lossin@...nel.org>,
	Andreas Hindborg <a.hindborg@...nel.org>,
	Alice Ryhl <aliceryhl@...gle.com>,
	Trevor Gross <tmgross@...ch.edu>,
	Danilo Krummrich <dakr@...nel.org>,
	Mitchell Levy <levymitchell0@...il.com>,
	Viresh Kumar <viresh.kumar@...aro.org>,
	Wedson Almeida Filho <wedsonaf@...il.com>
Subject: [PATCH v11 11/14] rust: sync: Expose lock::Backend

Due to the addition of sync::lock::Backend::Context, lock guards can be
returned with a different Backend than their respective lock. Since we'll
be adding a trait bound for Backend to GlobalGuard in order to support
this, users will need to be able to directly refer to Backend so that they
can use it in trait bounds.

So, let's make this easier for users and expose Backend in sync.

Signed-off-by: Lyude Paul <lyude@...hat.com>
---
 rust/kernel/sync.rs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/rust/kernel/sync.rs b/rust/kernel/sync.rs
index f1e448e096ea9..ebf004193bca5 100644
--- a/rust/kernel/sync.rs
+++ b/rust/kernel/sync.rs
@@ -25,6 +25,7 @@
 pub use lock::spinlock::{
     new_spinlock, new_spinlock_irq, SpinLock, SpinLockGuard, SpinLockIrq, SpinLockIrqGuard,
 };
+pub use lock::Backend;
 pub use locked_by::LockedBy;
 
 /// Represents a lockdep class. It's a wrapper around C's `lock_class_key`.
-- 
2.50.0