Re: [RFC PATCH 01/11] rust: add radix tree abstraction

[Matthew Wilcox]

On Wed, May 03, 2023 at 11:06:58AM +0200, Andreas Hindborg wrote:
> From: Andreas Hindborg <a.hindborg@xxxxxxxxxxx>
> 
> Add abstractions for the C radix_tree. This abstraction allows Rust code to use
> the radix_tree as a map from `u64` keys to `ForeignOwnable` values.

Please, no.  The XArray interface is the preferred one; the radix tree
is legacy.  Don't make Rust code use the radix tree.  It has the GFP
arguments in the wrong place, for one thing.