Re: [PATCH v5 5/6] dax: fix missing writeprotect the pte entry

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> +static void dax_entry_mkclean(struct address_space *mapping, unsigned long pfn,
> +			      unsigned long npfn, pgoff_t start)
>  {
>  	struct vm_area_struct *vma;
> +	pgoff_t end = start + npfn - 1;
>  
>  	i_mmap_lock_read(mapping);
> +	vma_interval_tree_foreach(vma, &mapping->i_mmap, start, end) {
> +		pfn_mkclean_range(pfn, npfn, start, vma);
>  		cond_resched();
>  	}
>  	i_mmap_unlock_read(mapping);


Is there any point in even keeping this helper vs just open coding it
in the only caller below?

Otherwise looks good:

Reviewed-by: Christoph Hellwig <hch@xxxxxx>



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