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Date: Fri, 3 Jul 2026 12:31:00 +0200
From: Greg KH <gregkh@linuxfoundation.org>
To: Eliot Courtney <ecourtney@nvidia.com>
Cc: Alice Ryhl <aliceryhl@google.com>, Burak Emir <bqe@google.com>,
	Yury Norov <yury.norov@gmail.com>, Miguel Ojeda <ojeda@kernel.org>,
	Boqun Feng <boqun@kernel.org>, Gary Guo <gary@garyguo.net>,
	=?iso-8859-1?Q?Bj=F6rn?= Roy Baron <bjorn3_gh@protonmail.com>,
	Benno Lossin <lossin@kernel.org>,
	Andreas Hindborg <a.hindborg@kernel.org>,
	Trevor Gross <tmgross@umich.edu>,
	Danilo Krummrich <dakr@kernel.org>,
	Daniel Almeida <daniel.almeida@collabora.com>,
	Tamir Duberstein <tamird@kernel.org>,
	Alexandre Courbot <acourbot@nvidia.com>,
	Onur =?iso-8859-1?Q?=D6zkan?= <work@onurozkan.dev>,
	David Airlie <airlied@gmail.com>, Simona Vetter <simona@ffwll.ch>,
	John Hubbard <jhubbard@nvidia.com>,
	Alistair Popple <apopple@nvidia.com>, Timur Tabi <ttabi@nvidia.com>,
	Zhi Wang <zhiw@nvidia.com>, rust-for-linux@vger.kernel.org,
	linux-kernel@vger.kernel.org, nova-gpu@lists.linux.dev,
	dri-devel@lists.freedesktop.org
Subject: Re: [PATCH 3/4] rust: id_pool: add contiguous area allocation
Message-ID: <2026070334-dollar-hexagram-e49c@gregkh>
References: <20260703-chid-v1-0-84fe8259e46e@nvidia.com>
 <20260703-chid-v1-3-84fe8259e46e@nvidia.com>
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In-Reply-To: <20260703-chid-v1-3-84fe8259e46e@nvidia.com>

On Fri, Jul 03, 2026 at 07:16:06PM +0900, Eliot Courtney wrote:
> Add support for contiguous area allocation. Add a new type,
> `UnusedArea`, following the same pattern as `UnusedId`.
> 
> Signed-off-by: Eliot Courtney <ecourtney@nvidia.com>

Why isn't the built-in idr library being used here instead of rolling
your own data structure?

thanks,

greg k-h