Linux kernel stable tree (mirror) https://git.radix-linux.su/kernel/linux.git/atom?h=v7.0.10 2026-01-09T11:01:41+00:00 2026-01-09T11:01:41+00:00 Alice Ryhl aliceryhl@google.com 2026-01-05T12:42:14+00:00 urn:sha1:aa574e0f21a6e7a28e4b8794ad4238d3bfd4f9df This is needed to inline these helpers into Rust code. Reviewed-by: Boqun Feng <boqun.feng@gmail.com> Reviewed-by: Gary Guo <gary@garyguo.net> Signed-off-by: Alice Ryhl <aliceryhl@google.com> Signed-off-by: Boqun Feng <boqun.feng@gmail.com> Link: https://patch.msgid.link/20260105-define-rust-helper-v2-1-51da5f454a67@google.com 2025-09-15T07:38:34+00:00 Boqun Feng boqun.feng@gmail.com 2025-09-05T04:41:36+00:00 urn:sha1:d9ea5a41cef80dc8103f4114b072b27364f2e06a Memory barriers are building blocks for concurrent code, hence provide a minimal set of them. The compiler barrier, barrier(), is implemented in inline asm instead of using core::sync::atomic::compiler_fence() because memory models are different: kernel's atomics are implemented in inline asm therefore the compiler barrier should be implemented in inline asm as well. Also it's currently only public to the kernel crate until there's a reasonable driver usage. 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> Reviewed-by: Elle Rhumsaa <elle@weathered-steel.dev> Link: https://lore.kernel.org/all/20250719030827.61357-10-boqun.feng@gmail.com/