linux-kernel - [PATCH v3 0/2] rust: page: Add support for existing struct page mappings

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <20241119112408.779243-1-abdiel.janulgue@gmail.com>
Date: Tue, 19 Nov 2024 13:24:01 +0200
From: Abdiel Janulgue <abdiel.janulgue@...il.com>
To: rust-for-linux@...r.kernel.org
Cc: Miguel Ojeda <ojeda@...nel.org>,
	Alex Gaynor <alex.gaynor@...il.com>,
	Boqun Feng <boqun.feng@...il.com>,
	Gary Guo <gary@...yguo.net>,
	Björn Roy Baron <bjorn3_gh@...tonmail.com>,
	Benno Lossin <benno.lossin@...ton.me>,
	Andreas Hindborg <a.hindborg@...nel.org>,
	Alice Ryhl <aliceryhl@...gle.com>,
	Trevor Gross <tmgross@...ch.edu>,
	Danilo Krummrich <dakr@...nel.org>,
	Wedson Almeida Filho <wedsonaf@...il.com>,
	Valentin Obst <kernel@...entinobst.de>,
	linux-kernel@...r.kernel.org (open list),
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-mm@...ck.org (open list:MEMORY MANAGEMENT),
	airlied@...hat.com,
	Abdiel Janulgue <abdiel.janulgue@...il.com>
Subject: [PATCH v3 0/2] rust: page: Add support for existing struct page mappings

This series aims to add support for pages that are not constructed by an
instance of the rust Page abstraction, for example those returned by
vmalloc_to_page() or virt_to_page().

Changes sinve v3:
- Use the struct page's reference count to decide when to free the
  allocation (Alice Ryhl, Boqun Feng).
- Make Page::page_slice_to_page handle virt_to_page cases as well
  (Danilo Krummrich).
- Link to v2: https://lore.kernel.org/lkml/20241022224832.1505432-1-abdiel.janulgue@gmail.com/

Changes since v2:
- Use Owned and Ownable types for constructing Page as suggested in
  instad of using ptr::read().
- Link to v1: https://lore.kernel.org/rust-for-linux/20241007202752.3096472-1-abdiel.janulgue@gmail.com/

Abdiel Janulgue (2):
  rust: page: use the page's reference count to decide when to free the
    allocation
  rust: page: Extend support to existing struct page mappings

 rust/bindings/bindings_helper.h |   1 +
 rust/helpers/page.c             |  20 +++++
 rust/kernel/page.rs             | 135 ++++++++++++++++++++++++++++----
 3 files changed, 142 insertions(+), 14 deletions(-)


base-commit: b2603f8ac8217bc59f5c7f248ac248423b9b99cb
-- 
2.43.0