linux-kernel - Re: [PATCH v6 3/4] rust: add support for NUMA ids in allocations

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Message-ID: <aF7km7nm9ggoj2AW@pollux>
Date: Fri, 27 Jun 2025 20:36:11 +0200
From: Danilo Krummrich <dakr@...nel.org>
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>,
	Alice Ryhl <aliceryhl@...gle.com>, rust-for-linux@...r.kernel.org
Subject: Re: [PATCH v6 3/4] rust: add support for NUMA ids in allocations

On Fri, Jun 27, 2025 at 08:16:38PM +0200, Vitaly Wool wrote:
> Add support for specifying NUMA ids in Rust allocators as an Option
> (i. e. providing `None` as nid corresponds to NUMA_NO_NODE). To do
> this, modify ReallocFunc to use the new extended realloc primitives
> from the C side of the kernel (i. e. k[v]realloc_node/vrealloc_node)
> 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>

Did you see [1]? I can't see the feedback being addressed.

[1] https://lore.kernel.org/lkml/aF5-a-bUp1pD5tiS@pollux/