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rust: helpers: Add i8/i16 atomic xchg_acquire helpers

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Add i8/i16 atomic xchg_acquire helpers that call xchg_acquire() macro
implementing atomic xchg_acquire using architecture-specific
instructions.

[boqun: Use xchg_acquire() instead of raw_xchg_acquire()]

Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Signed-off-by: FUJITA Tomonori <fujita.tomonori@gmail.com>
Reviewed-by: Gary Guo <gary@garyguo.net>
Signed-off-by: Boqun Feng <boqun.feng@gmail.com>
Link: https://patch.msgid.link/20251223062140.938325-3-fujita.tomonori@gmail.com
This commit is contained in:
FUJITA Tomonori 2025-12-23 15:21:38 +09:00 committed by Boqun Feng
parent 5dbc0a6924
commit ab717dd98b
1 changed files with 10 additions and 0 deletions
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10
rust/helpers/atomic_ext.c
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@ -60,3 +60,13 @@ __rust_helper s16 rust_helper_atomic_i16_xchg(s16 *ptr, s16 new)
{
return xchg(ptr, new);
}
__rust_helper s8 rust_helper_atomic_i8_xchg_acquire(s8 *ptr, s8 new)
{
return xchg_acquire(ptr, new);
}
__rust_helper s16 rust_helper_atomic_i16_xchg_acquire(s16 *ptr, s16 new)
{
return xchg_acquire(ptr, new);
}