Re: [RFC PATCH 1/2] procfs: add contpte info into smaps

[David Hildenbrand (Arm)]

> +#ifndef pte_cont
> +#define pte_cont(pte) (false)
> +#endif
> +
>  static void smaps_pte_entry(pte_t *pte, unsigned long addr,
>  		struct mm_walk *walk)
>  {
> @@ -1023,12 +1030,14 @@ static void smaps_pte_entry(pte_t *pte, unsigned long addr,
>  	bool locked = !!(vma->vm_flags & VM_LOCKED);
>  	struct page *page = NULL;
>  	bool present = false, young = false, dirty = false;
> +	bool cont = false;
>  	pte_t ptent = ptep_get(pte);
>  
>  	if (pte_present(ptent)) {
>  		page = vm_normal_page(vma, addr, ptent);
>  		young = pte_young(ptent);
>  		dirty = pte_dirty(ptent);
> +		cont = pte_cont(ptent);

No, none of this low-level pte_cont fiddling in common code.

We have folio_pte_batch() to batch over folio ptes. And we want some
better page table walkers to just do the batching for us:

https://lore.kernel.org/r/20260412174244.133715-1-osalvador@xxxxxxx

-- 
Cheers,

David