Re: [PATCH] mm: Remove src/dst mm parameter in copy_page_range()

[Peter Xu]

On Fri, Oct 02, 2020 at 08:43:12AM -0300, Jason Gunthorpe wrote:
> > -static int copy_pte_range(struct mm_struct *dst_mm, struct mm_struct *src_mm,
> > -		   pmd_t *dst_pmd, pmd_t *src_pmd, struct vm_area_struct *vma,
> > -		   struct vm_area_struct *new,
> > +static int copy_pte_range(pmd_t *dst_pmd, pmd_t *src_pmd,
> > +		   struct vm_area_struct *vma, struct vm_area_struct *new,
> >  		   unsigned long addr, unsigned long end)
> 
> I link this, my only minor quibble is the mixing of dst/src and new
> language, and then reversing the order in each place. Would read
> better to be consistent:
> 
>   copy_pte_range(dst_vma, dst_pmd, src_vma, src_pmd, addr, end)

I have no strong opinion on the ordering, but I agree the names are clearer.
Considering normally we put the same type of parameters to be together, how
about:

  copy_pte_range(dst_vma, src_vma, dst_pmd, src_pmd, addr, end)

Thanks,

-- 
Peter Xu