Re: [RFC PATCH v1 5/5] rust: file: add `DeferredFdCloser`

[Martin Rodriguez Reboredo]

On 7/20/23 12:28, Alice Ryhl wrote:
> This adds a new type called `DeferredFdCloser` that can be used to close
> files by their fd in a way that is safe even if the file is currently
> held using `fdget`.
>
> This is done by grabbing an extra refcount to the file and dropping it
> in a task work once we return to userspace.
>
> See comments on `binder_do_fd_close` and commit `80cd795630d65` for
> motivation.

Please provide links, at least for the doc comment.

> Signed-off-by: Alice Ryhl <aliceryhl@xxxxxxxxxx>
> ---
> [...]
>   
> +/// Helper used for closing file descriptors in a way that is safe even if the file is currently
> +/// held using `fdget`.
> +///
> +/// See comments on `binder_do_fd_close` and commit `80cd795630d65`.

Ditto.

> +pub struct DeferredFdCloser {
> +    inner: Box<DeferredFdCloserInner>,
> +}
> +
> [...]