linux-kernel - Re: [PATCH v12 2/4] mm/slub: allow to set node and align in k[v]realloc

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Message-ID: <3b1de14f-faef-420b-87e8-3b7f2845ced1@suse.cz>
Date: Thu, 10 Jul 2025 09:45:07 +0200
From: Vlastimil Babka <vbabka@...e.cz>
To: Vitaly Wool <vitaly.wool@...sulko.se>, linux-mm@...ck.org
Cc: akpm@...ux-foundation.org, linux-kernel@...r.kernel.org,
 Uladzislau Rezki <urezki@...il.com>, Danilo Krummrich <dakr@...nel.org>,
 Alice Ryhl <aliceryhl@...gle.com>, 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 v12 2/4] mm/slub: allow to set node and align in
 k[v]realloc

On 7/9/25 19:24, Vitaly Wool wrote:
> Reimplement k[v]realloc_node() to be able to set node and
> alignment should a user need to do so. In order to do that while
> retaining the maximal backward compatibility, add
> k[v]realloc_node_align() functions and redefine the rest of API
> using these new ones.
> 
> While doing that, we also keep the number of  _noprof variants to a
> minimum, which implies some changes to the existing users of older
> _noprof functions, that basically being bcachefs.
> 
> With that change we also provide the ability for the Rust part of
> the kernel to set node and alignment in its K[v]xxx
> [re]allocations.
> 
> Signed-off-by: Vitaly Wool <vitaly.wool@...sulko.se>

Reviewed-by: Vlastimil Babka <vbabka@...e.cz>