Matthew Wilcox <willy@xxxxxxxxxxxxx> writes: > 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. I have a similar argument to not using xarrray as to not using folios, see my other response. But the Rust xarray API is in the works [1]. Best regards, Andreas [1] https://lore.kernel.org/rust-for-linux/1bb98ef1-727a-45d6-3cf6-39765fe99c5c@xxxxxxxxxxxxx/
