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linux/rust/helpers/atomic.c

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rust: Introduce atomic API helpers In order to support LKMM atomics in Rust, add rust_helper_* for atomic APIs. These helpers ensure the implementation of LKMM atomics in Rust is the same as in C. This could save the maintenance burden of having two similar atomic implementations in asm. Originally-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Boqun Feng <boqun.feng@gmail.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: Alice Ryhl <aliceryhl@google.com> Link: https://lore.kernel.org/all/20250719030827.61357-2-boqun.feng@gmail.com/
2025-09-04 21:41:28 -07:00
rust: helpers: Move #define __rust_helper out of atomic.c In order to support inline helpers [1], we need to have __rust_helper defined for all helper files. Current we are lucky that atomic.c is the first file in helpers.c, but this is fragile. Thus, move it to helpers.c. [boqun: Reword the commit message and apply file hash changes] Link: https://lore.kernel.org/r/20260105-define-rust-helper-v2-0-51da5f454a67@google.com [1] Signed-off-by: Alice Ryhl <aliceryhl@google.com> Signed-off-by: Boqun Feng <boqun.feng@gmail.com> Link: https://patch.msgid.link/20260107-move-rust_helper-define-v1-1-4109d58ef275@google.com
2026-01-07 14:14:13 +00:00