Re: [PATCH v2 1/2] mm/userfaultfd: don't place zeropages when zeropages are disallowed

[Alexander Gordeev <agordeev@xxxxxxxxxxxxx>]

On Wed, Mar 27, 2024 at 06:17:36PM +0100, David Hildenbrand wrote:

Hi David,
...
>  static int mfill_atomic_pte_zeropage(pmd_t *dst_pmd,
>  				     struct vm_area_struct *dst_vma,
>  				     unsigned long dst_addr)
> @@ -324,6 +355,9 @@ static int mfill_atomic_pte_zeropage(pmd_t *dst_pmd,
>  	spinlock_t *ptl;
>  	int ret;
>  
> +	if (mm_forbids_zeropage(dst_vma->mm))

I assume, you were going to pass dst_vma->vm_mm here?
This patch does not compile otherwise.
...

Thanks!