Messages in this thread | | | Date | Mon, 8 Jun 2020 20:47:27 +0530 | From | afzal mohammed <> | Subject | Re: ARM: vmsplit 4g/4g |
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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
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