linux-kernel - Re: [PATCH -next v8 2/3] rust: gpu: Add GPU buddy allocator bindings

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Message-ID: <a7140f1d-b4de-412d-88a5-90e76d2200e3@nvidia.com>
Date: Tue, 10 Feb 2026 17:06:51 -0500
From: Joel Fernandes <joelagnelf@...dia.com>
To: Danilo Krummrich <dakr@...nel.org>
Cc: linux-kernel@...r.kernel.org,
 Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
 Maxime Ripard <mripard@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>,
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Subject: Re: [PATCH -next v8 2/3] rust: gpu: Add GPU buddy allocator bindings



On 2/10/2026 4:10 PM, Danilo Krummrich wrote:
>> I'll change this to return `impl PinInit<AllocatedBlocks, Error>` in the next
>> version. If a shared ownership use case arises later, we
>> can always add an `Arc`-returning convenience wrapper.
>
> I don't think we should, don't give drivers a reason to go for more allocations
> they actually need for convinience.

I wasn't implying to give reason to go for more allocations, it is about a
reference to the same allocation that may be required to be shared from multiple
objects for whatever reason. But again, currently we don't have a use case for that.

-- 
Joel Fernandes