Subject: Re: [PATCH 06/13] mm/memory: Add dax_insert_pfn

From: Christoph Hellwig <[email-masked]>
Date: Thu, 27 Jun 2024 07:22:59 +0200

On Thu, Jun 27, 2024 at 10:54:21AM +1000, Alistair Popple wrote:
> +extern void prep_compound_page(struct page *page, unsigned int order);

No need for the extern.

>  static int insert_page_into_pte_locked(struct vm_area_struct *vma, pte_t *pte,
> -			unsigned long addr, struct page *page, pgprot_t prot)
> +			unsigned long addr, struct page *page, pgprot_t prot, bool mkwrite)

Overly long line.

> +	retval = insert_page_into_pte_locked(vma, pte, addr, page, prot, mkwrite);

.. same here.

> +vm_fault_t dax_insert_pfn(struct vm_area_struct *vma,
> +		unsigned long addr, pfn_t pfn_t, bool write)

This could probably use a kerneldoc comment.