Gary Guo 72856afd33 rust: sync: Add generic memory barriers ...

Implement a generic interface for memory barriers (full system/DMA/SMP).
The interface uses a parameter to force user to specify their intent
with barriers.

Provide `Read`, `Write`, `Full` orderings which map to the existing
`rmb()`, `wmb()` and `mb()`. Generic is used here instead of providing
individual standalone functions to reduce code duplication; for example,
the `CONFIG_SMP` check in `smp_mb` is uniformly implemented for all SMP
barriers. This could extend to `virt_mb`'s if they're introduced in the
future. It would also make it easier if new ordering types are
introduced in the future (e.g. `Acquire`, `Release`).

Signed-off-by: Gary Guo <gary@garyguo.net>
Signed-off-by: Boqun Feng <boqun@kernel.org>
Link: https://patch.msgid.link/20260609-rust-barrier-v2-2-30fcc48e1cd0@garyguo.net

2026-08-04 05:52:54 -07:00

..

internal.rs

rust: make build_assert module the home of related macros

2026-06-10 09:07:13 +02:00

ordering.rs

rust: sync: Add generic memory barriers

2026-08-04 05:52:54 -07:00

predefine.rs

rust: make build_assert module the home of related macros

2026-06-10 09:07:13 +02:00