[PATCH v2 0/4] Additional CondVar methods needed by Rust Binder

Alice Ryhl
2023-12-16T15:31:49Z

This patchset contains some CondVar methods that Rust Binder needs.

The CondVar type implements a condition variable, and tries to mirror
the API of the CondVar type provided by the Rust standard library [2].
It is implemented using a `wait_queue_head`.

Please see the Rust Binder RFC for usage examples [1].

Users of rust: sync: add `CondVar::notify_sync`:
[PATCH RFC 04/20] rust_binder: add work lists
[PATCH RFC 07/20] rust_binder: add epoll support
[PATCH RFC 08/20] rust_binder: add non-oneway transactions

Users of rust: time: add msecs to jiffies conversion:
[PATCH v2 3/3] rust: sync: add `CondVar::wait_timeout`
[PATCH RFC 15/20] rust_binder: add process freezing

Users of rust: sync: add `CondVar::wait_timeout`:
[PATCH RFC 15/20] rust_binder: add process freezing

This patchset is based on top of Boqun's patch [3] that renames the
existing wait methods to follow the C convention of using the
_interruptable suffix.

Link: https://lore.kernel.org/rust-for-linux/20231101-rust-binder-v1-0-08ba9197f637@google.com/ [1]
Link: https://doc.rust-lang.org/stable/std/sync/struct.Condvar.html [2]
Link: https://lore.kernel.org/all/20231214200421.690629-1-boqun.feng@gmail.com/ [3]
Signed-off-by: Alice Ryhl <aliceryhl@google.com>
---
Changes in v2:
- Introduce "rust: time: add msecs to jiffies conversion" patch.
- Introduce "rust: sync: update integer types in CondVar" patch.
- Merge wait_internal and wait_internal_timeout.
- Use new Jiffies type alias instead of u64.
- Update names to use _interruptable suffix (and base patchset on top of [3]).
- Link to v1: https://lore.kernel.org/r/20231206-rb-new-condvar-methods-v1-0-33a4cab7fdaa@google.com

---
Alice Ryhl (4):
rust: sync: add `CondVar::notify_sync`
rust: time: add msecs to jiffies conversion
rust: sync: add `CondVar::wait_timeout`
rust: sync: update integer types in CondVar

rust/bindings/bindings_helper.h | 1 +
rust/kernel/lib.rs | 1 +
rust/kernel/sync/condvar.rs | 86 ++++++++++++++++++++++++++++++++---------
rust/kernel/sync/lock.rs | 4 +-
rust/kernel/time.rs | 17 ++++++++
5 files changed, 89 insertions(+), 20 deletions(-)
---
base-commit: 2a76b6e08193d2997689011321bcf230f0c8d4fe
change-id: 20231205-rb-new-condvar-methods-27ba95df5d41

Best regards,
--
Alice Ryhl <aliceryhl@google.com>