| Age | Commit message (Collapse) | Author | Files | Lines | |
|---|---|---|---|---|---|
| 2023-04-22 | rust: sync: introduce `CondVar` | Wedson Almeida Filho | 1 | -0/+2 | |
| This is the traditional condition variable or monitor synchronisation primitive. It is implemented with C's `wait_queue_head_t`. It allows users to release a lock and go to sleep while guaranteeing that notifications won't be missed. This is achieved by enqueuing a wait entry before releasing the lock. Cc: Peter Zijlstra <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Will Deacon <[email protected]> Cc: Waiman Long <[email protected]> Reviewed-by: Martin Rodriguez Reboredo <[email protected]> Signed-off-by: Wedson Almeida Filho <[email protected]> Reviewed-by: Alice Ryhl <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Miguel Ojeda <[email protected]> | |||||
| 2023-04-22 | rust: sync: introduce `LockedBy` | Wedson Almeida Filho | 1 | -0/+2 | |
| This allows us to have data protected by a lock despite not being wrapped by it. Access is granted by providing evidence that the lock is held by the caller. Reviewed-by: Martin Rodriguez Reboredo <[email protected]> Signed-off-by: Wedson Almeida Filho <[email protected]> Reviewed-by: Benno Lossin <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Miguel Ojeda <[email protected]> | |||||
| 2023-04-22 | rust: lock: introduce `SpinLock` | Wedson Almeida Filho | 1 | -1/+1 | |
| This is the `spinlock_t` lock backend and allows Rust code to use the kernel spinlock idiomatically. Cc: Peter Zijlstra <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Will Deacon <[email protected]> Cc: Waiman Long <[email protected]> Reviewed-by: Martin Rodriguez Reboredo <[email protected]> Signed-off-by: Wedson Almeida Filho <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Miguel Ojeda <[email protected]> | |||||
| 2023-04-22 | rust: lock: introduce `Mutex` | Wedson Almeida Filho | 1 | -0/+1 | |
| This is the `struct mutex` lock backend and allows Rust code to use the kernel mutex idiomatically. Cc: Peter Zijlstra <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Will Deacon <[email protected]> Cc: Waiman Long <[email protected]> Reviewed-by: Martin Rodriguez Reboredo <[email protected]> Signed-off-by: Wedson Almeida Filho <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Miguel Ojeda <[email protected]> | |||||
| 2023-04-22 | rust: sync: introduce `Lock` and `Guard` | Wedson Almeida Filho | 1 | -1/+1 | |
| They are generic Rust implementations of a lock and a lock guard that contain code that is common to all locks. Different backends will be introduced in subsequent commits. Reviewed-by: Martin Rodriguez Reboredo <[email protected]> Suggested-by: Gary Guo <[email protected]> Signed-off-by: Wedson Almeida Filho <[email protected]> Link: https://lore.kernel.org/r/[email protected] [ Fixed typo. ] Signed-off-by: Miguel Ojeda <[email protected]> | |||||
| 2023-04-21 | rust: sync: introduce `LockClassKey` | Wedson Almeida Filho | 1 | -0/+45 | |
| It is a wrapper around C's `lock_class_key`, which is used by the synchronisation primitives that are checked with lockdep. This is in preparation for introducing Rust abstractions for these primitives. Cc: Peter Zijlstra <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Will Deacon <[email protected]> Cc: Waiman Long <[email protected]> Reviewed-by: Martin Rodriguez Reboredo <[email protected]> Co-developed-by: Boqun Feng <[email protected]> Signed-off-by: Boqun Feng <[email protected]> Signed-off-by: Wedson Almeida Filho <[email protected]> Reviewed-by: Gary Guo <[email protected]> Reviewed-by: Benno Lossin <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Miguel Ojeda <[email protected]> | |||||
| 2023-01-16 | rust: sync: introduce `UniqueArc` | Wedson Almeida Filho | 1 | -1/+1 | |
| Since `Arc<T>` does not allow mutating `T` directly (i.e., without inner mutability), it is currently not possible to do some initialisation of `T` post construction but before being shared. `UniqueArc<T>` addresses this problem essentially being an `Arc<T>` that has a refcount of 1 and is therefore writable. Once initialisation is completed, it can be transitioned (without failure paths) into an `Arc<T>`. Suggested-by: Gary Guo <[email protected]> Signed-off-by: Wedson Almeida Filho <[email protected]> Reviewed-by: Alice Ryhl <[email protected]> Reviewed-by: Gary Guo <[email protected]> Reviewed-by: Vincenzo Palazzo <[email protected]> Acked-by: Boqun Feng <[email protected]> Signed-off-by: Miguel Ojeda <[email protected]> | |||||
| 2023-01-16 | rust: sync: introduce `ArcBorrow` | Wedson Almeida Filho | 1 | -1/+1 | |
| This allows us to create references to a ref-counted allocation without double-indirection and that still allow us to increment the refcount to a new `Arc<T>`. Signed-off-by: Wedson Almeida Filho <[email protected]> Reviewed-by: Alice Ryhl <[email protected]> Acked-by: Boqun Feng <[email protected]> Reviewed-by: Gary Guo <[email protected]> Reviewed-by: Vincenzo Palazzo <[email protected]> Signed-off-by: Miguel Ojeda <[email protected]> | |||||
| 2023-01-16 | rust: sync: add `Arc` for ref-counted allocations | Wedson Almeida Filho | 1 | -0/+10 | |
| This is a basic implementation of `Arc` backed by C's `refcount_t`. It allows Rust code to idiomatically allocate memory that is ref-counted. Cc: Will Deacon <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Boqun Feng <[email protected]> Cc: Mark Rutland <[email protected]> Signed-off-by: Wedson Almeida Filho <[email protected]> Reviewed-by: Alice Ryhl <[email protected]> Reviewed-by: Gary Guo <[email protected]> Reviewed-by: Vincenzo Palazzo <[email protected]> Acked-by: Boqun Feng <[email protected]> Signed-off-by: Miguel Ojeda <[email protected]> | |||||