]> git.ipfire.org Git - thirdparty/kernel/linux.git/commitdiff
rust: helpers: Add i8/i16 atomic try_cmpxchg_acquire helpers
authorFUJITA Tomonori <fujita.tomonori@gmail.com>
Sat, 27 Dec 2025 11:59:49 +0000 (20:59 +0900)
committerBoqun Feng <boqun.feng@gmail.com>
Fri, 9 Jan 2026 11:01:41 +0000 (19:01 +0800)
Add i8/i16 atomic try_cmpxchg_acquire helpers that call
try_cmpxchg_acquire() macro implementing atomic try_cmpxchg_acquire
using architecture-specific instructions.

[boqun: Use try_cmpxchg_acquire() instead of raw_try_cmpxchg_acquire()]

Signed-off-by: FUJITA Tomonori <fujita.tomonori@gmail.com>
Signed-off-by: Boqun Feng <boqun.feng@gmail.com>
Link: https://patch.msgid.link/20251227115951.1424458-3-fujita.tomonori@gmail.com
rust/helpers/atomic_ext.c

index 5ee127f1cc80cfd38efe7cc7bf019be5c3218a0e..b6efec14e5b356a81b0dfc269dfd7687f1c0c9ad 100644 (file)
@@ -107,3 +107,13 @@ __rust_helper bool rust_helper_atomic_i16_try_cmpxchg(s16 *ptr, s16 *old, s16 ne
 {
        return try_cmpxchg(ptr, old, new);
 }
+
+__rust_helper bool rust_helper_atomic_i8_try_cmpxchg_acquire(s8 *ptr, s8 *old, s8 new)
+{
+       return try_cmpxchg_acquire(ptr, old, new);
+}
+
+__rust_helper bool rust_helper_atomic_i16_try_cmpxchg_acquire(s16 *ptr, s16 *old, s16 new)
+{
+       return try_cmpxchg_acquire(ptr, old, new);
+}