I'm sending this RFC to share an experiment I'm looking at. This may let us replace the range allocator in Rust Binder with a maple tree.
An RcuBox is like a Box except that it lets you obtain a &T that outlives the box by a grace period. It does not allow mutable access to the inner value (Binder would probably use LockedBy for inner values). Signed-off-by: Alice Ryhl <[email protected]> --- Alice Ryhl (2): rust: rcu: add RcuBox type rust: maple_tree: add load_rcu() rust/bindings/bindings_helper.h | 1 + rust/kernel/maple_tree.rs | 52 ++++++++++++++ rust/kernel/sync/rcu.rs | 31 ++++++++- rust/kernel/sync/rcu/rcu_box.rs | 145 ++++++++++++++++++++++++++++++++++++++++ 4 files changed, 228 insertions(+), 1 deletion(-) --- base-commit: 8f0b4cce4481fb22653697cced8d0d04027cb1e8 change-id: 20260116-rcu-box-7a8e4c9f2180 Best regards, -- Alice Ryhl <[email protected]>
