linux-kernel - Re: [PATCH v13 3/4] rust: add support for NUMA ids in allocations

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Message-ID: <aIH8as4gSAJ1dTl2@google.com>
Date: Thu, 24 Jul 2025 09:27:06 +0000
From: Alice Ryhl <aliceryhl@...gle.com>
To: Vitaly Wool <vitaly.wool@...sulko.se>
Cc: linux-mm@...ck.org, akpm@...ux-foundation.org, 
	linux-kernel@...r.kernel.org, Uladzislau Rezki <urezki@...il.com>, 
	Danilo Krummrich <dakr@...nel.org>, Vlastimil Babka <vbabka@...e.cz>, rust-for-linux@...r.kernel.org, 
	Lorenzo Stoakes <lorenzo.stoakes@...cle.com>, "Liam R . Howlett" <Liam.Howlett@...cle.com>, 
	Kent Overstreet <kent.overstreet@...ux.dev>, linux-bcachefs@...r.kernel.org, 
	bpf@...r.kernel.org, Herbert Xu <herbert@...dor.apana.org.au>, 
	Jann Horn <jannh@...gle.com>, Pedro Falcato <pfalcato@...e.de>
Subject: Re: [PATCH v13 3/4] rust: add support for NUMA ids in allocations

On Tue, Jul 15, 2025 at 03:58:27PM +0200, Vitaly Wool wrote:
> Add a new type to support specifying NUMA identifiers in Rust
> allocators and extend the allocators to have NUMA id as a
> parameter. Thus, modify ReallocFunc to use the new extended realloc
> primitives from the C side of the kernel (i. e.
> k[v]realloc_node_align/vrealloc_node_align) and add the new function
> alloc_node to the Allocator trait while keeping the existing one
> (alloc) for backward compatibility.
> 
> This will allow to specify node to use for allocation of e. g.
> {KV}Box, as well as for future NUMA aware users of the API.
> 
> Signed-off-by: Vitaly Wool <vitaly.wool@...sulko.se>
> Acked-by: Danilo Krummrich <dakr@...nel.org>

Acked-by: Alice Ryhl <aliceryhl@...gle.com>