This is a reimagining relative to earlier versions[0] by Asahi Lina and Maíra Canal. It is needed to support rust-binder, though this version only provides enough machinery to support rnull. Link: https://lore.kernel.org/rust-for-linux/20240309235927.168915-2-mcanal@xxxxxxxxxx/ [0] --- Changes in v14: - Remove TODO made stale by Gary Guo's FFI type series. - Link: https://lore.kernel.org/all/20240913213041.395655-5-gary@xxxxxxxxxxx/ - Link to v13: https://lore.kernel.org/r/20241213-rust-xarray-bindings-v13-0-8655164e624f@xxxxxxxxx Changes in v13: - Replace `bool::then` with `if`. (Miguel Ojeda) - Replace `match` with `let` + `if`. (Miguel Ojeda) - Link to v12: https://lore.kernel.org/r/20241212-rust-xarray-bindings-v12-0-59ab9b1f4d2e@xxxxxxxxx Changes in v12: - Import `core::ptr::NonNull`. (Alice Ryhl) - Introduce `StoreError` to allow `?` to be used with `Guard::store`. (Alice Ryhl) - Replace `{crate,core}::ffi::c_ulong` and clarify TODO with respect to `usize`. (Alice Ryhl) - Drop `T: Sync` bound on `impl Sync for XArray<T>`. (Alice Ryhl) - Reword `Send` and `Sync` safety comments to match the style used in `lock.rs`. (Alice Ryhl and Andreas Hindborg) - Link to v11: https://lore.kernel.org/r/20241203-rust-xarray-bindings-v11-0-58a95d137ec2@xxxxxxxxx Changes in v11: - Consolidate imports. (Alice Ryhl) - Use literal `0` rather than `MIN`. (Alice Ryhl) - Use bulleted list in SAFETY comment. (Alice Ryhl) - Document (un)locking behavior of `Guard::store`. (Alice Ryhl) - Document Normal API behavior WRT `XA_ZERO_ENTRY`. (Alice Ryhl) - Rewrite `unsafe impl Sync` SAFETY comment. (Andreas Hindborg) - Link to v10: https://lore.kernel.org/r/20241120-rust-xarray-bindings-v10-0-a25b2b0bf582@xxxxxxxxx Changes in v10: - Guard::get takes &self instead of &mut self. (Andreas Hindborg) - Guard is !Send. (Boqun Feng) - Add Inspired-by tags. (Maíra Canal and Asahi Lina) - Rebase on linux-next, use NotThreadSafe. (Alice Ryhl) - Link to v9: https://lore.kernel.org/r/20241118-rust-xarray-bindings-v9-0-3219cdb53685@xxxxxxxxx --- Tamir Duberstein (2): rust: types: add `ForeignOwnable::PointedTo` rust: xarray: Add an abstraction for XArray rust/bindings/bindings_helper.h | 6 + rust/helpers/helpers.c | 1 + rust/helpers/xarray.c | 28 ++++ rust/kernel/alloc.rs | 5 + rust/kernel/alloc/kbox.rs | 38 +++--- rust/kernel/lib.rs | 1 + rust/kernel/miscdevice.rs | 6 +- rust/kernel/sync/arc.rs | 21 +-- rust/kernel/types.rs | 46 ++++--- rust/kernel/xarray.rs | 279 ++++++++++++++++++++++++++++++++++++++++ 10 files changed, 386 insertions(+), 45 deletions(-) --- base-commit: fac04efc5c793dccbd07e2d59af9f90b7fc0dca4 change-id: 20241020-rust-xarray-bindings-bef514142968 prerequisite-change-id: 20241030-borrow-mut-75f181feef4c:v6 prerequisite-patch-id: f801fb31bb4f202b3327f5fdb50d3018e25347d1 prerequisite-patch-id: b57aa4f44b238d4cb80f00276a188d9ba0c743cc prerequisite-patch-id: 2387ec5af1cc03614d3dff5a95cefcd243befd65 prerequisite-patch-id: 75e26dd500888d9a27f8eac3d8304eab8d75c366 prerequisite-patch-id: 7f845443f373f975a888f01c3761fe8aa04b8a3c prerequisite-patch-id: 5a9856c7363b33f0adfe8658e076b35abf960d23 Best regards, -- Tamir Duberstein <tamird@xxxxxxxxx>
