Re: [PATCH 19/30] mm: use linear_page_[index, delta]() consistently

Ackerley Tng <[email protected]> Wed, 8 Jul 2026 17:06:09 -0700

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Lorenzo Stoakes <[email protected]> writes:

> diff --git a/virt/kvm/guest_memfd.c b/virt/kvm/guest_memfd.c
> index db57c5766ab6..f0e5da490866 100644
> --- a/virt/kvm/guest_memfd.c
> +++ b/virt/kvm/guest_memfd.c
> @@ -440,7 +440,7 @@ static int kvm_gmem_set_policy(struct vm_area_struct *vma, struct mempolicy *mpo
>  static struct mempolicy *kvm_gmem_get_policy(struct vm_area_struct *vma,
>  					     unsigned long addr, pgoff_t *ilx)
>  {
> -	pgoff_t pgoff = vma->vm_pgoff + ((addr - vma->vm_start) >> PAGE_SHIFT);
> +	pgoff_t pgoff = linear_page_index(vma, addr);
>  	struct inode *inode = file_inode(vma->vm_file);
>
>  	*ilx = inode->i_ino;
> --
> 2.54.0

For the guest_memfd change:

Reviewed-by: Ackerley Tng <[email protected]>

Thank you!