Messages in this thread | | | Date | Wed, 17 May 2023 20:31:12 +0000 | Subject | [PATCH v1 0/7] Bindings for the workqueue | From | Alice Ryhl <> |
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This patchset contains bindings for the kernel workqueue.
One of the primary goals behind the design used in this patch is that we must support embedding the `work_struct` as a field in user-provided types, because this allows you to submit things to the workqueue without having to allocate, making the submission infallible. If we didn't have to support this, then the patch would be much simpler. One of the main things that make it complicated is that we must ensure that the function pointer in the `work_struct` is compatible with the struct it is contained within.
This patch could be significantly simplified if we already had the field projection bindings. However, we have decided to upstream the current version that does not depend on field projection first - the PR that introduces field projections will then include a commit that simplifies the workqueue implementation. (In particular, it would simplify the 5th patch in this series.)
The first version of the workqueue bindings was written by Wedson, but I have rewritten much of it so that it uses the pin-init infrastructure and can be used with containers other than `Arc`.
Alice Ryhl (4): rust: workqueue: add low-level workqueue bindings rust: workqueue: add helper for defining work_struct fields rust: workqueue: add safe API to workqueue rust: workqueue: add `try_spawn` helper method
Wedson Almeida Filho (3): rust: add offset_of! macro rust: sync: add `Arc::{from_raw, into_raw}` rust: workqueue: define built-in queues
rust/helpers.c | 8 + rust/kernel/lib.rs | 37 ++ rust/kernel/sync/arc.rs | 44 +++ rust/kernel/workqueue.rs | 715 +++++++++++++++++++++++++++++++++++++++ scripts/Makefile.build | 2 +- 5 files changed, 805 insertions(+), 1 deletion(-) create mode 100644 rust/kernel/workqueue.rs
base-commit: ac9a78681b921877518763ba0e89202254349d1b -- 2.40.1.606.ga4b1b128d6-goog
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