Re: [PATCH 4/6] x86/kasan: Prepare clear_pgds() to switch to <asm-generic/pgtable-nop4d.h>

[Ingo Molnar]

* Andrey Ryabinin <aryabinin@xxxxxxxxxxxxx> wrote:

> 
> 
> On 03/17/2017 09:55 PM, Kirill A. Shutemov wrote:
> > With folded p4d, pgd_clear() is nop. Change clear_pgds() to use
> > p4d_clear() instead.
> > 
> 
> You could probably just use set_pgd(pgd_offset_k(start), __pgd(0)); instead of pgd_clear()
> as we already do in arm64.
> It's basically pgd_clear() except it's not a nop wih p4d folded.

Makes sense. Kirill, if you agree, mind spinning a v2 patch?

Thanks,

	Ingo