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

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Date: Tue, 21 May 2024 23:36:51 +0800
From: "Bang Li" <libang.li@...group.com>
To: David Hildenbrand <david@...hat.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()

Hi David,

Thanks for you review!

On 2024/5/21 17:36, David Hildenbrand wrote:
> 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.
> "

Agree! Thank you for your suggestion, I will modify it in the next version

> 
> [...]
> 
>> +#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

Thanks again.
Bang

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