linux-kernel - Re: [PATCH] rust: slab: add basic slab module

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <CAH5fLgiRFMyXkcx-CngRQOdYuJMkoTdXTOjGsdTYizvApArrmw@mail.gmail.com>
Date: Thu, 25 Sep 2025 19:54:27 +0200
From: Alice Ryhl <aliceryhl@...gle.com>
To: Danilo Krummrich <dakr@...nel.org>
Cc: Elijah Wright <git@...jahs.space>, Miguel Ojeda <ojeda@...nel.org>, 
	Alex Gaynor <alex.gaynor@...il.com>, Boqun Feng <boqun.feng@...il.com>, 
	Gary Guo <gary@...yguo.net>, Björn Roy Baron <bjorn3_gh@...tonmail.com>, 
	Benno Lossin <lossin@...nel.org>, Andreas Hindborg <a.hindborg@...nel.org>, 
	Trevor Gross <tmgross@...ch.edu>, rust-for-linux@...r.kernel.org, 
	linux-kernel@...r.kernel.org, Lorenzo Stoakes <lorenzo.stoakes@...cle.com>, 
	Vlastimil Babka <vbabka@...e.cz>, "Liam R. Howlett" <Liam.Howlett@...cle.com>, 
	Uladzislau Rezki <urezki@...il.com>, linux-mm@...ck.org
Subject: Re: [PATCH] rust: slab: add basic slab module

On Thu, Sep 25, 2025 at 11:54 AM Danilo Krummrich <dakr@...nel.org> wrote:
>   (3) Implement a macro to generate a custom KmemCache Allocator trait
>       implementation for every KmemCache instance with a static lifetime.
>
>       This makes KmemCache technically equivalent to the other allocators, such
>       as Kmalloc, etc. but obviously has the downside that the KmemCache might
>       live much longer than required.
>
>       Technically, most KmemCache instances live for the whole module lifetime,
>       so it might be fine though.
>
>       (This is what I think Alice proposed.)

Yes, this is what I proposed. Most kmemcaches live for the duration of
the module, so it's no issue if they are global.

Alice