linux-kernel - Re: [PATCH v3 2/3] mm: Refactor update_mmu

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Date: Tue, 21 May 2024 11:36:42 +0200
From: David Hildenbrand <david@...hat.com>
To: Bang Li <libang.li@...group.com>, akpm@...ux-foundation.org,
 chenhuacai@...nel.org, tsbogend@...ha.franken.de, paul.walmsley@...ive.com,
 palmer@...belt.com, chris@...kel.net, jcmvbkbc@...il.com
Cc: linux-kernel@...r.kernel.org, linux-mm@...ck.org,
 loongarch@...ts.linux.dev, linux-riscv@...ts.infradead.org,
 ryan.roberts@....com, ioworker0@...il.com, libang.linux@...il.com
Subject: Re: [PATCH v3 2/3] mm: Refactor update_mmu_tlb()

On 18.05.24 09:49, Bang Li wrote:
> Remove update_mmu_tlb() from those architectures and define
> generically via update_mmu_tlb_range(), removing the ability
> for arches to override it.

I'd suggest something like

"mm: implement update_mmu_tlb() using update_mmu_tlb_range()

Let's make update_mmu_tlb() simply a generic wrapper around 
update_mmu_tlb_range(). Only the latter can now be overridden by the 
architecture. We can now remove __HAVE_ARCH_UPDATE_MMU_TLB as well.
"

[...]

> +#ifndef update_mmu_tlb_range
> +static inline void update_mmu_tlb_range(struct vm_area_struct *vma,
> +				unsigned long address, pte_t *ptep, unsigned int nr)
> +{
> +}
> +#endif

With that in patch #1

Acked-by: David Hildenbrand <david@...hat.com>

-- 
Cheers,

David / dhildenb