Re: ARM: vmsplit 4g/4g

[afzal mohammed]

Hi,

On Mon, Jun 08, 2020 at 04:43:57PM +0200, Arnd Bergmann wrote:

> There is another difference: get_user_pages_fast() does not return
> a  vm_area_struct pointer, which is where you would check the access
> permissions. I suppose those pointers could not be returned to callers
> that don't already hold the mmap_sem.

Ok, thanks for the details, i need to familiarize better with mm.

Regards
afzal