linux-kernel - Re: [PATCH] rust: alloc: add GFP

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Message-Id: <DG0GX23ANI54.2PQM2BL2IKRLL@kernel.org>
Date: Wed, 28 Jan 2026 20:26:53 +0100
From: "Danilo Krummrich" <dakr@...nel.org>
To: "Andreas Hindborg" <a.hindborg@...nel.org>
Cc: "Miguel Ojeda" <ojeda@...nel.org>, "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>, "Lorenzo
 Stoakes" <lorenzo.stoakes@...cle.com>, "Vlastimil Babka" <vbabka@...e.cz>,
 "Liam R. Howlett" <Liam.Howlett@...cle.com>, "Uladzislau Rezki"
 <urezki@...il.com>, <rust-for-linux@...r.kernel.org>,
 <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] rust: alloc: add GFP_NOIO flag

On Wed Jan 28, 2026 at 7:37 PM CET, Andreas Hindborg wrote:
> +    /// [`GFP_NOIO`] will use direct reclaim to discard clean pages or slab
> +    /// pages that do not require the starting of any physical IO.
> +    pub const GFP_NOIO: Flags = Flags(bindings::GFP_NOIO);

How do you use this? What about abstractions for memalloc_noio_{save,restore}()
instead?