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rust: helpers: Add i8/i16 atomic xchg_relaxed helpers

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

[boqun: Use xchg_relaxed() instead of raw_xchg_relaxed()]

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/20251223062140.938325-5-fujita.tomonori@gmail.com
This commit is contained in:
FUJITA Tomonori 2025-12-23 15:21:40 +09:00 committed by Boqun Feng
parent 1bfca1e7e8
commit 910cbddc41
1 changed files with 10 additions and 0 deletions
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10
rust/helpers/atomic_ext.c
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@ -80,3 +80,13 @@ __rust_helper s16 rust_helper_atomic_i16_xchg_release(s16 *ptr, s16 new)
{
return xchg_release(ptr, new);
}
__rust_helper s8 rust_helper_atomic_i8_xchg_relaxed(s8 *ptr, s8 new)
{
return xchg_relaxed(ptr, new);
}
__rust_helper s16 rust_helper_atomic_i16_xchg_relaxed(s16 *ptr, s16 new)
{
return xchg_relaxed(ptr, new);
}