linux-kernel - Re: [PATCH 3/3] rust: xarray: add `insert` and `reserve`

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Message-ID: <20250706082904.GB1546990@robin.jannau.net>
Date: Sun, 6 Jul 2025 10:29:04 +0200
From: Janne Grunau <j@...nau.net>
To: Miguel Ojeda <miguel.ojeda.sandonis@...il.com>
Cc: Tamir Duberstein <tamird@...il.com>,
	Andreas Hindborg <a.hindborg@...nel.org>,
	Miguel Ojeda <ojeda@...nel.org>,
	Alex Gaynor <alex.gaynor@...il.com>,
	Boqun Feng <boqun.feng@...il.com>, Gary Guo <gary@...yguo.net>,
	Björn Roy Baron <bjorn3_gh@...tonmail.com>,
	Benno Lossin <lossin@...nel.org>, Alice Ryhl <aliceryhl@...gle.com>,
	Trevor Gross <tmgross@...ch.edu>,
	Danilo Krummrich <dakr@...nel.org>,
	Matthew Wilcox <willy@...radead.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	rust-for-linux@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-fsdevel@...r.kernel.org, linux-mm@...ck.org,
	Daniel Almeida <daniel.almeida@...labora.com>
Subject: Re: [PATCH 3/3] rust: xarray: add `insert` and `reserve`

On Tue, Jul 01, 2025 at 06:56:17PM +0200, Miguel Ojeda wrote:
> On Tue, Jul 1, 2025 at 6:27 PM Tamir Duberstein <tamird@...il.com> wrote:
> >
> > Add `Guard::{insert,reserve}` and `Guard::{insert,reserve}_limit`, which
> > are akin to `__xa_{alloc,insert}` in C.
> 
> Who will be using this? i.e. we need to justify adding code, typically
> by mentioning the users.

xa_alloc() / reserve() is used by asahi. It's still using our own
abstraction but I'm in the progress of rebase onto the upstream xarray
abstractions from v6.16-rc1. Once I'm done I'll reply with "Tested-by:".

Janne