Re: [PATCH v2] mm: make minimum slab alignment a runtime property

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On Thu, Apr 21, 2022 at 02:15:48PM -0700, Peter Collingbourne wrote:
> diff --git a/include/linux/slab.h b/include/linux/slab.h
> index 373b3ef99f4e..80e517593372 100644
> --- a/include/linux/slab.h
> +++ b/include/linux/slab.h
> @@ -201,21 +201,33 @@ void kmem_dump_obj(void *object);
>  #endif
>  
>  /*
> - * Setting ARCH_SLAB_MINALIGN in arch headers allows a different alignment.
> + * Setting ARCH_SLAB_MIN_MINALIGN in arch headers allows a different alignment.
>   * Intended for arches that get misalignment faults even for 64 bit integer
>   * aligned buffers.
>   */
> -#ifndef ARCH_SLAB_MINALIGN
> -#define ARCH_SLAB_MINALIGN __alignof__(unsigned long long)
> +#ifndef ARCH_SLAB_MIN_MINALIGN
> +#define ARCH_SLAB_MIN_MINALIGN __alignof__(unsigned long long)
> +#endif

Sorry, only a drive-by comment, I'll look at the arm64 parts next week.
I've seen it mentioned in the first version, what's the point of MIN_MIN
and not just MIN?

-- 
Catalin




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