[PATCH v3 1/5] mm: Optimize mprotect() by batch-skipping PTEs

[David Hildenbrand]

On 22.05.25 09:47, Dev Jain wrote:
> 
> On 22/05/25 12:43 pm, David Hildenbrand wrote:
>>
>>>> ... likely with a better function name,
>>>
>>>
>>> I want to be able to reuse the folio from vm_normal_folio(), and we also
>>> need
>>>
>>> nr_ptes to know how much to skip, so if there is no objection in passing
>>> int *nr_ptes,
>>>
>>> or struct folio **foliop to this new function, then I'll carry on with
>>> your suggestion :)
>>
>> Can you quickly prototype what you have in mind and paste it here?
>> Will make it easier :)
> 
> 
> if (prot_numa)
> 
>       func(vma, addr, oldpte, &nr);

I'd probably return "nr_ptes" and return the folio using a &folio instead.

That way, you can easily extend the function to return the folio in the 
patch where you really need it (not this patch IIUR :) )

-- 
Cheers,

David / dhildenb