Re: [PATCH v2 3/6] mm/vma: only permit MAP_PRIVATE /dev/zero to be mapped anonymous

[Lorenzo Stoakes (ARM)]

On Tue, Sep 08, 2026 at 02:49:33PM +0200, David Hildenbrand (Arm) wrote:
>
> > +	/* Temporary MAP_PRIVATE-/dev/zero workaround. */
> > +	if (is_anon && map->file)
> > +		vma_set_anonymous(vma);
> > +
> >  	if (error)
> >  		goto free_iter_vma;
> >
> > @@ -2777,6 +2793,10 @@ static int call_mmap_prepare(struct mmap_state *map,
> >  	if (err)
> >  		return err;
> >
> > +	/* Hooks cannot mark themselves anonymous. */
>
> Wasn't this supposed to be reworked? :)

It is, you yourself pointed out 4/6 makes this irrelevant, so I changed it
there :)

>
> In any case,
>
> Acked-by: David Hildenbrand (Arm) <david@xxxxxxxxxx>
>
> --
> Cheers,
>
> David

--
Cheers, Lorenzo