* [tip: locking/core] rust: helpers: Add i8/i16 atomic try_cmpxchg_acquire helpers
[not found] <20251227115951.1424458-3-fujita.tomonori@gmail.com>
@ 2026-01-13 10:50 ` tip-bot2 for FUJITA Tomonori
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From: tip-bot2 for FUJITA Tomonori @ 2026-01-13 10:50 UTC (permalink / raw)
To: linux-tip-commits; +Cc: FUJITA Tomonori, Boqun Feng, x86, linux-kernel
The following commit has been merged into the locking/core branch of tip:
Commit-ID: fed6aaa392c301721144303d64b7c68575d9d5ef
Gitweb: https://git.kernel.org/tip/fed6aaa392c301721144303d64b7c68575d9d5ef
Author: FUJITA Tomonori <fujita.tomonori@gmail.com>
AuthorDate: Sat, 27 Dec 2025 20:59:49 +09:00
Committer: Boqun Feng <boqun.feng@gmail.com>
CommitterDate: Fri, 09 Jan 2026 19:01:41 +08:00
rust: helpers: Add i8/i16 atomic try_cmpxchg_acquire helpers
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 | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/rust/helpers/atomic_ext.c b/rust/helpers/atomic_ext.c
index 5ee127f..b6efec1 100644
--- a/rust/helpers/atomic_ext.c
+++ b/rust/helpers/atomic_ext.c
@@ -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);
+}
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