Re: [PATCH 1/2] rust: alloc: specify the minimum alignment of each allocator

["Benno Lossin" <lossin@kernel.org>]

On Tue Jul 15, 2025 at 3:46 PM CEST, Alice Ryhl wrote:
> The kernel's allocators sometimes provide a higher alignment than the
> end-user requested, so add a new constant on the Allocator trait to let
> the allocator specify what its minimum guaranteed alignment is.
>
> This allows the ForeignOwnable trait to provide a more accurate value of
> FOREIGN_ALIGN when using a pointer type such as Box, which will be
> useful with certain collections such as XArray that store its own data
> in the low bits of pointers.
>
> Signed-off-by: Alice Ryhl <aliceryhl@google.com>

With the wording changed according to Danilo's suggestion:

Reviewed-by: Benno Lossin <lossin@kernel.org>

---
Cheers,
Benno

> ---
>  rust/kernel/alloc.rs           | 8 ++++++++
>  rust/kernel/alloc/allocator.rs | 8 ++++++++
>  2 files changed, 16 insertions(+)