linux-kernel - [PATCH v2 0/5] Use Rust Bitmap from Rust Binder driver

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Message-ID: <20251021-binder-bitmap-v2-0-e652d172c62b@google.com>
Date: Tue, 21 Oct 2025 13:32:42 +0000
From: Alice Ryhl <aliceryhl@...gle.com>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, Yury Norov <yury.norov@...il.com>
Cc: "Arve Hjønnevåg" <arve@...roid.com>, Todd Kjos <tkjos@...roid.com>, 
	Martijn Coenen <maco@...roid.com>, Joel Fernandes <joelagnelf@...dia.com>, 
	Christian Brauner <brauner@...nel.org>, Carlos Llamas <cmllamas@...gle.com>, 
	Suren Baghdasaryan <surenb@...gle.com>, Burak Emir <bqe@...gle.com>, Miguel Ojeda <ojeda@...nel.org>, 
	Boqun Feng <boqun.feng@...il.com>, Gary Guo <gary@...yguo.net>, 
	"Björn Roy Baron" <bjorn3_gh@...tonmail.com>, Benno Lossin <lossin@...nel.org>, 
	Andreas Hindborg <a.hindborg@...nel.org>, Trevor Gross <tmgross@...ch.edu>, 
	Danilo Krummrich <dakr@...nel.org>, rust-for-linux@...r.kernel.org, 
	linux-kernel@...r.kernel.org, Alice Ryhl <aliceryhl@...gle.com>
Subject: [PATCH v2 0/5] Use Rust Bitmap from Rust Binder driver

See commit message for rust binder commit for details.

Signed-off-by: Alice Ryhl <aliceryhl@...gle.com>
---
Changes in v2:
- Use id_pool.
- Link to v1: https://lore.kernel.org/r/20251020-binder-bitmap-v1-0-879bec9cddc1@google.com

---
Alice Ryhl (5):
      rust: bitmap: add MAX_LEN and NO_ALLOC_MAX_LEN constants
      rust: bitmap: add BitmapVec::new_small()
      rust: id_pool: do not supply starting capacity
      rust: id_pool: do not immediately acquire new ids
      rust_binder: use bitmap for allocation of handles

 drivers/android/binder/process.rs | 63 +++++++++++++++++++++++++++-----------
 rust/kernel/bitmap.rs             | 26 +++++++++++++---
 rust/kernel/id_pool.rs            | 64 ++++++++++++++++++++++++++++-----------
 3 files changed, 114 insertions(+), 39 deletions(-)
---
base-commit: 211ddde0823f1442e4ad052a2f30f050145ccada
change-id: 20251007-binder-bitmap-5aa0d966fb1f

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