From: Alice Ryhl <aliceryhl@google.com>
To: "Miguel Ojeda" <ojeda@kernel.org>,
"Alex Gaynor" <alex.gaynor@gmail.com>,
"Wedson Almeida Filho" <wedsonaf@gmail.com>,
"Boqun Feng" <boqun.feng@gmail.com>,
"Gary Guo" <gary@garyguo.net>,
"Björn Roy Baron" <bjorn3_gh@protonmail.com>,
"Benno Lossin" <benno.lossin@proton.me>,
"Andreas Hindborg" <a.hindborg@samsung.com>,
"Peter Zijlstra" <peterz@infradead.org>,
"Alexander Viro" <viro@zeniv.linux.org.uk>,
"Christian Brauner" <brauner@kernel.org>,
"Greg Kroah-Hartman" <gregkh@linuxfoundation.org>,
"Arve Hjønnevåg" <arve@android.com>,
"Todd Kjos" <tkjos@android.com>,
"Martijn Coenen" <maco@android.com>,
"Joel Fernandes" <joel@joelfernandes.org>,
"Carlos Llamas" <cmllamas@google.com>,
"Suren Baghdasaryan" <surenb@google.com>
Cc: Dan Williams <dan.j.williams@intel.com>,
Kees Cook <keescook@chromium.org>,
Matthew Wilcox <willy@infradead.org>,
Thomas Gleixner <tglx@linutronix.de>, Daniel Xu <dxu@dxuuu.xyz>,
linux-kernel@vger.kernel.org, rust-for-linux@vger.kernel.org,
linux-fsdevel@vger.kernel.org, Alice Ryhl <aliceryhl@google.com>,
Trevor Gross <tmgross@umich.edu>,
Martin Rodriguez Reboredo <yakoyoku@gmail.com>
Subject: [PATCH v5 0/9] File abstractions needed by Rust Binder
Date: Fri, 09 Feb 2024 11:18:13 +0000 [thread overview]
Message-ID: <20240209-alice-file-v5-0-a37886783025@google.com> (raw)
This patchset contains the file abstractions needed by the Rust
implementation of the Binder driver.
Please see the Rust Binder RFC for usage examples:
https://lore.kernel.org/rust-for-linux/20231101-rust-binder-v1-0-08ba9197f637@google.com/
Users of "rust: types: add `NotThreadSafe`":
[PATCH 5/9] rust: file: add `FileDescriptorReservation`
Users of "rust: task: add `Task::current_raw`":
[PATCH 7/9] rust: file: add `Kuid` wrapper
[PATCH 8/9] rust: file: add `DeferredFdCloser`
Users of "rust: file: add Rust abstraction for `struct file`":
[PATCH RFC 02/20] rust_binder: add binderfs support to Rust binder
[PATCH RFC 03/20] rust_binder: add threading support
Users of "rust: cred: add Rust abstraction for `struct cred`":
[PATCH RFC 05/20] rust_binder: add nodes and context managers
[PATCH RFC 06/20] rust_binder: add oneway transactions
[PATCH RFC 11/20] rust_binder: send nodes in transaction
[PATCH RFC 13/20] rust_binder: add BINDER_TYPE_FD support
Users of "rust: security: add abstraction for secctx":
[PATCH RFC 06/20] rust_binder: add oneway transactions
Users of "rust: file: add `FileDescriptorReservation`":
[PATCH RFC 13/20] rust_binder: add BINDER_TYPE_FD support
[PATCH RFC 14/20] rust_binder: add BINDER_TYPE_FDA support
Users of "rust: file: add `Kuid` wrapper":
[PATCH RFC 05/20] rust_binder: add nodes and context managers
[PATCH RFC 06/20] rust_binder: add oneway transactions
Users of "rust: file: add `DeferredFdCloser`":
[PATCH RFC 14/20] rust_binder: add BINDER_TYPE_FDA support
Users of "rust: file: add abstraction for `poll_table`":
[PATCH RFC 07/20] rust_binder: add epoll support
This patchset is based on rust-next, which means that it doesn't compile
without the following patch, which has not yet made it further upstream
than rust-next.
https://lore.kernel.org/all/20240105012930.1426214-1-charmitro@posteo.net/
This patchset has some uses of read_volatile in place of READ_ONCE.
Please see the following rfc for context on this:
https://lore.kernel.org/all/20231025195339.1431894-1-boqun.feng@gmail.com/
Signed-off-by: Alice Ryhl <aliceryhl@google.com>
---
Changes in v5:
- Pass a null pointer to task_tgid_nr_ns.
- Fix some typos and other formatting issues.
- Add Reviewed-by where appropriate.
- Link to v4: https://lore.kernel.org/r/20240202-alice-file-v4-0-fc9c2080663b@google.com
Changes in v4:
- Moved the two really simple patches to the beginning of the patchset.
- Update Send safety comments.
- Use srctree relative links.
- Mention that `Credential::euid` is immutable.
- Update some safety comments to mention the invariant on Self.
- Use new name for close_fd_get_file.
- Move safety comments on DeferredFdCloser around and be more explicit
about how many refcounts we own.
- Reword safety comments related to _qproc.
- Add Reviewed-by where appropriate.
- Link to v3: https://lore.kernel.org/r/20240118-alice-file-v3-0-9694b6f9580c@google.com
Changes in v3:
- Completely rewrite comments about refcounting in the first patch.
- And add a note to the documentation in fs/file.c.
- Discuss speculation gadgets in commit message for the Kuid wrapper.
- Introduce NotThreadSafe and Task::current_raw patches and use them in
later patches.
- Improve safety comments in DeferredFdCloser.
- Some other minor changes.
- Link to v2: https://lore.kernel.org/r/20231206-alice-file-v2-0-af617c0d9d94@google.com
Changes in v2:
- Update various docs and safety comments.
- Rename method names to match the C name.
- Use ordinary read instead of READ_ONCE in File::cred.
- Changed null check in secctx.
- Add type alias for PhantomData in FileDescriptorReservation.
- Use Kuid::from_raw in Kuid::current_euid.
- Make DeferredFdCloser fallible if it is unable to schedule a task
work. And also schedule the task work *before* closing the file.
- Moved PollCondVar to rust/kernel/sync.
- Updated PollCondVar to use wake_up_pollfree.
- Link to v1: https://lore.kernel.org/all/20231129-alice-file-v1-0-f81afe8c7261@google.com/
Link to RFC:
https://lore.kernel.org/all/20230720152820.3566078-1-aliceryhl@google.com/
---
Alice Ryhl (6):
rust: types: add `NotThreadSafe`
rust: task: add `Task::current_raw`
rust: security: add abstraction for secctx
rust: file: add `Kuid` wrapper
rust: file: add `DeferredFdCloser`
rust: file: add abstraction for `poll_table`
Wedson Almeida Filho (3):
rust: file: add Rust abstraction for `struct file`
rust: cred: add Rust abstraction for `struct cred`
rust: file: add `FileDescriptorReservation`
fs/file.c | 7 +
rust/bindings/bindings_helper.h | 8 +
rust/helpers.c | 94 ++++++++
rust/kernel/cred.rs | 83 +++++++
rust/kernel/file.rs | 519 ++++++++++++++++++++++++++++++++++++++++
rust/kernel/lib.rs | 3 +
rust/kernel/security.rs | 72 ++++++
rust/kernel/sync.rs | 1 +
rust/kernel/sync/lock.rs | 14 +-
rust/kernel/sync/poll.rs | 117 +++++++++
rust/kernel/task.rs | 105 +++++++-
rust/kernel/types.rs | 18 ++
12 files changed, 1029 insertions(+), 12 deletions(-)
---
base-commit: f090f0d0eea9666a96702b29bc9a64cbabee85c5
change-id: 20231123-alice-file-525b98e8a724
Best regards,
--
Alice Ryhl <aliceryhl@google.com>
next reply other threads:[~2024-02-09 11:18 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-02-09 11:18 Alice Ryhl [this message]
2024-02-09 11:18 ` [PATCH v5 1/9] rust: types: add `NotThreadSafe` Alice Ryhl
2024-02-09 11:49 ` Alice Ryhl
2024-02-09 11:18 ` [PATCH v5 2/9] rust: task: add `Task::current_raw` Alice Ryhl
2024-02-09 11:18 ` [PATCH v5 3/9] rust: file: add Rust abstraction for `struct file` Alice Ryhl
2024-03-20 15:20 ` Christian Brauner
2024-03-20 18:09 ` Alice Ryhl
2024-03-31 12:55 ` Christian Brauner
2024-04-01 12:09 ` Alice Ryhl
2024-04-01 15:26 ` Christian Brauner
2024-04-02 9:39 ` Alice Ryhl
2024-04-03 6:01 ` Christian Brauner
2024-04-03 11:33 ` Alice Ryhl
2024-04-08 7:45 ` Alice Ryhl
2024-04-17 8:22 ` Alice Ryhl
2024-02-09 11:18 ` [PATCH v5 4/9] rust: cred: add Rust abstraction for `struct cred` Alice Ryhl
2024-02-09 11:18 ` [PATCH v5 5/9] rust: security: add abstraction for secctx Alice Ryhl
2024-02-09 11:18 ` [PATCH v5 6/9] rust: file: add `FileDescriptorReservation` Alice Ryhl
2024-02-10 7:41 ` Trevor Gross
2024-03-20 15:33 ` Christian Brauner
2024-02-09 11:18 ` [PATCH v5 7/9] rust: file: add `Kuid` wrapper Alice Ryhl
2024-02-10 7:43 ` Trevor Gross
2024-02-12 10:04 ` Alice Ryhl
2024-02-12 16:00 ` Boqun Feng
2024-02-09 11:18 ` [PATCH v5 8/9] rust: file: add `DeferredFdCloser` Alice Ryhl
2024-02-10 7:47 ` Trevor Gross
2024-03-20 14:21 ` Christian Brauner
2024-03-21 13:28 ` Alice Ryhl
2024-03-31 10:26 ` Christian Brauner
2024-02-09 11:18 ` [PATCH v5 9/9] rust: file: add abstraction for `poll_table` Alice Ryhl
2024-02-10 7:52 ` Trevor Gross
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