Re: [PATCH 4/9] mm/rmap: make rmap_walk to get thermap_walk_control argument

[Andrew Morton]

On Mon, 02 Dec 2013 15:09:33 -0500 Naoya Horiguchi <n-horiguchi@xxxxxxxxxxxxx> wrote:

> > --- a/include/linux/rmap.h
> > +++ b/include/linux/rmap.h
> > @@ -235,11 +235,16 @@ struct anon_vma *page_lock_anon_vma_read(struct page *page);
> >  void page_unlock_anon_vma_read(struct anon_vma *anon_vma);
> >  int page_mapped_in_vma(struct page *page, struct vm_area_struct *vma);
> >  
> > +struct rmap_walk_control {
> > +	int (*main)(struct page *, struct vm_area_struct *,
> > +					unsigned long, void *);
> 
> Maybe you can add parameters' names to make this prototype more readable.
> 

Yes, I find it quite maddening when the names are left out.  They're really
very useful for understanding what's going on.

The name "main" seems odd as well.  What does "main" mean?  "rmap_one"
was better, but "rmap_one_page" or "rmap_one_pte" or whatever would
be better.
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