1 files changed, 15 insertions, 0 deletions
diff --git a/rust/kernel/sync/atomic/predefine.rs b/rust/kernel/sync/atomic/predefine.rs
new file mode 100644
index 000000000000..33356deee952
--- /dev/null
+++ b/rust/kernel/sync/atomic/predefine.rs
@@ -0,0 +1,15 @@
+// SPDX-License-Identifier: GPL-2.0
+
+//! Pre-defined atomic types
+
+// SAFETY: `i32` has the same size and alignment with itself, and is round-trip transmutable to
+// itself.
+unsafe impl super::AtomicType for i32 {
+    type Repr = i32;
+}
+
+// SAFETY: `i64` has the same size and alignment with itself, and is round-trip transmutable to
+// itself.
+unsafe impl super::AtomicType for i64 {
+    type Repr = i64;
+}