linux-kernel - Re: [PATCH v2 3/4] rust: miscdevice: Provide additional abstractions for iov

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Message-ID: <878qkxlgoc.fsf@kernel.org>
Date: Wed, 09 Jul 2025 13:58:11 +0200
From: Andreas Hindborg <a.hindborg@...nel.org>
To: "Alice Ryhl" <aliceryhl@...gle.com>
Cc: "Greg Kroah-Hartman" <gregkh@...uxfoundation.org>,  "Alexander Viro"
 <viro@...iv.linux.org.uk>,  "Arnd Bergmann" <arnd@...db.de>,  "Miguel
 Ojeda" <ojeda@...nel.org>,  "Boqun Feng" <boqun.feng@...il.com>,  "Gary
 Guo" <gary@...yguo.net>,  Björn Roy Baron
 <bjorn3_gh@...tonmail.com>,
  "Trevor Gross" <tmgross@...ch.edu>,  "Danilo Krummrich"
 <dakr@...nel.org>,  "Matthew Maurer" <mmaurer@...gle.com>,  "Lee Jones"
 <lee@...nel.org>,  <linux-kernel@...r.kernel.org>,
  <rust-for-linux@...r.kernel.org>,  "Benno Lossin" <lossin@...nel.org>
Subject: Re: [PATCH v2 3/4] rust: miscdevice: Provide additional
 abstractions for iov_iter and kiocb structures

"Alice Ryhl" <aliceryhl@...gle.com> writes:

> On Tue, Jul 08, 2025 at 04:51:11PM +0200, Andreas Hindborg wrote:
>> "Alice Ryhl" <aliceryhl@...gle.com> writes:
>> > +/// Wrapper for the kernel's `struct kiocb`.
>> > +///
>> > +/// The type `T` represents the private data of the file.
>>
>> Could you give more context? Please describe the purpose for the type
>> and intended use. Perhaps give an example that can be compile tested.
>
> Right now, it's basically a `(&mut i64, &T)` tuple providing access to
> the file position and private data. That's it.

Great! Let's get something along those lines in the docs.


Best regards,
Andreas Hindborg