linux-kernel - Re: [PATCH 1/7] rust: file: add Rust abstraction for `struct file`

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Date:   Thu, 30 Nov 2023 14:59:17 +0000
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     Benno Lossin <benno.lossin@...ton.me>
Cc:     Alice Ryhl <aliceryhl@...gle.com>, Miguel Ojeda <ojeda@...nel.org>,
        Alex Gaynor <alex.gaynor@...il.com>,
        Wedson Almeida Filho <wedsonaf@...il.com>,
        Boqun Feng <boqun.feng@...il.com>, Gary Guo <gary@...yguo.net>,
        Björn Roy Baron <bjorn3_gh@...tonmail.com>,
        Andreas Hindborg <a.hindborg@...sung.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Alexander Viro <viro@...iv.linux.org.uk>,
        Christian Brauner <brauner@...nel.org>,
        Arve Hjønnevåg <arve@...roid.com>,
        Todd Kjos <tkjos@...roid.com>,
        Martijn Coenen <maco@...roid.com>,
        Joel Fernandes <joel@...lfernandes.org>,
        Carlos Llamas <cmllamas@...gle.com>,
        Suren Baghdasaryan <surenb@...gle.com>,
        Dan Williams <dan.j.williams@...el.com>,
        Kees Cook <keescook@...omium.org>,
        Matthew Wilcox <willy@...radead.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Daniel Xu <dxu@...uu.xyz>, linux-kernel@...r.kernel.org,
        rust-for-linux@...r.kernel.org, linux-fsdevel@...r.kernel.org
Subject: Re: [PATCH 1/7] rust: file: add Rust abstraction for `struct file`

On Thu, Nov 30, 2023 at 02:53:35PM +0000, Benno Lossin wrote:
> On 11/29/23 13:51, Alice Ryhl wrote:
> > +/// Flags associated with a [`File`].
> > +pub mod flags {
> > +    /// File is opened in append mode.
> > +    pub const O_APPEND: u32 = bindings::O_APPEND;
> 
> Why do all of these constants begin with `O_`?

Because that is how they are defined in the kernel in the C code.  Why
would they not be the same here?

thanks,

greg k-h