From: Alice Ryhl <aliceryhl@google.com>
To: Hui Zhu <hui.zhu@linux.dev>
Cc: Danilo Krummrich <dakr@kernel.org>,
Lorenzo Stoakes <lorenzo.stoakes@oracle.com>,
Vlastimil Babka <vbabka@suse.cz>,
"Liam R . Howlett" <Liam.Howlett@oracle.com>,
Uladzislau Rezki <urezki@gmail.com>,
Miguel Ojeda <ojeda@kernel.org>,
Alex Gaynor <alex.gaynor@gmail.com>,
Boqun Feng <boqun.feng@gmail.com>, Gary Guo <gary@garyguo.net>,
bjorn3_gh@protonmail.com, Benno Lossin <lossin@kernel.org>,
Andreas Hindborg <a.hindborg@kernel.org>,
Trevor Gross <tmgross@umich.edu>,
rust-for-linux@vger.kernel.org, linux-kernel@vger.kernel.org,
akpm@linux-foundation.org, vitaly.wool@konsulko.se,
Hui Zhu <zhuhui@kylinos.cn>, Geliang Tang <geliang@kernel.org>
Subject: Re: [PATCH v6 1/2] rust: allocator: add KUnit tests for alignment guarantees
Date: Wed, 30 Jul 2025 08:02:02 +0000 [thread overview]
Message-ID: <aInResSO2TDAn1-4@google.com> (raw)
In-Reply-To: <3ad14f15b6d2639d6e998ecd03158313414b69dd.1753841900.git.zhuhui@kylinos.cn>
On Wed, Jul 30, 2025 at 11:35:21AM +0800, Hui Zhu wrote:
> From: Hui Zhu <zhuhui@kylinos.cn>
>
> Add a test module to verify memory alignment guarantees for Rust kernel
> allocators.
> The tests cover `Kmalloc`, `Vmalloc` and `KVmalloc` allocators
> with both standard and large page-aligned allocations.
>
> Key features of the tests:
> 1. Creates alignment-constrained types:
> - 128-byte aligned `Blob`
> - 8192-byte (4-page) aligned `LargeAlignBlob`
> 2. Validates allocators using `TestAlign` helper which:
> - Checks address alignment masks
> - Supports uninitialized allocations
> 3. Tests all three allocators with both alignment requirements:
> - Kmalloc with 128B and 8192B
> - Vmalloc with 128B and 8192B
> - KVmalloc with 128B and 8192B
>
> Co-developed-by: Geliang Tang <geliang@kernel.org>
> Signed-off-by: Geliang Tang <geliang@kernel.org>
> Signed-off-by: Hui Zhu <zhuhui@kylinos.cn>
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
next prev parent reply other threads:[~2025-07-30 8:02 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-07-30 3:35 [PATCH v6 0/2] rust: alloc: kvec doc example and allocator unit tests Hui Zhu
2025-07-30 3:35 ` [PATCH v6 1/2] rust: allocator: add KUnit tests for alignment guarantees Hui Zhu
2025-07-30 8:02 ` Alice Ryhl [this message]
2025-07-30 8:26 ` Kunwu Chan
2025-07-30 9:16 ` Miguel Ojeda
2025-07-31 2:54 ` Hui Zhu
2025-07-30 3:35 ` [PATCH v6 2/2] rust: alloc: kvec: add doc example for as_slice method Hui Zhu
2025-07-30 8:03 ` Alice Ryhl
2025-07-31 2:53 ` Hui Zhu
2025-07-30 8:27 ` Kunwu Chan
2025-07-30 8:31 ` Danilo Krummrich
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