linux-kernel - [PATCH 18/36] rust: sync: atomic: Add store_release/load

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Message-ID: <20260111120209.6133-16-boqun.feng@gmail.com>
Date: Sun, 11 Jan 2026 20:01:51 +0800
From: Boqun Feng <boqun.feng@...il.com>
To: "Peter Zijlstra" <peterz@...radead.org>,
	"Ingo Molnar" <mingo@...nel.org>
Cc: rust-for-linux@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	"Will Deacon" <will@...nel.org>,
	"Mark Rutland" <mark.rutland@....com>,
	"Thomas Gleixner" <tglx@...utronix.de>,
	"Miguel Ojeda" <ojeda@...nel.org>,
	"Gary Guo" <gary@...yguo.net>,
	"Alice Ryhl" <aliceryhl@...gle.com>,
	"Andreas Hindborg" <a.hindborg@...nel.org>,
	"Benno Lossin" <lossin@...nel.org>,
	"Danilo Krummrich" <dakr@...nel.org>,
	FUJITA Tomonori <fujita.tomonori@...il.com>,
	Joel Fernandes <joelagnelf@...dia.com>,
	Boqun Feng <boqun.feng@...il.com>
Subject: [PATCH 18/36] rust: sync: atomic: Add store_release/load_acquire tests

From: FUJITA Tomonori <fujita.tomonori@...il.com>

Add minimum store_release/load_acquire tests.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@...il.com>
Reviewed-by: Gary Guo <gary@...yguo.net>
Reviewed-by: Joel Fernandes <joelagnelf@...dia.com>
Signed-off-by: Boqun Feng <boqun.feng@...il.com>
Link: https://patch.msgid.link/20251211113826.1299077-5-fujita.tomonori@gmail.com
---
 rust/kernel/sync/atomic/predefine.rs | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/rust/kernel/sync/atomic/predefine.rs b/rust/kernel/sync/atomic/predefine.rs
index 09b357be59b8..51e9df0cf56e 100644
--- a/rust/kernel/sync/atomic/predefine.rs
+++ b/rust/kernel/sync/atomic/predefine.rs
@@ -137,6 +137,16 @@ fn atomic_basic_tests() {
         });
     }
 
+    #[test]
+    fn atomic_acquire_release_tests() {
+        for_each_type!(42 in [i8, i16, i32, i64, u32, u64, isize, usize] |v| {
+            let x = Atomic::new(0);
+
+            x.store(v, Release);
+            assert_eq!(v, x.load(Acquire));
+        });
+    }
+
     #[test]
     fn atomic_xchg_tests() {
         for_each_type!(42 in [i32, i64, u32, u64, isize, usize] |v| {
-- 
2.51.0