Re: [PATCH 06/12] x86/mm: Enable and use the arch_pgd_init_late() method

[Ingo Molnar]

* Oleg Nesterov <oleg@xxxxxxxxxx> wrote:

> On 06/13, Oleg Nesterov wrote:
> >
> > Afaics, we need to ensure that:
> >
> > > +			if (pgd_val(*pgd_src))
> > > +				WRITE_ONCE(*pgd_dst, *pgd_src);
> >
> > either we notice the recent update of this PGD, or (say) the subsequent
> > sync_global_pgds() can miss the child.
> 
> and perhaps !pgd_none(pgd_src) will look better.

Indeed - fixed.

Thanks,

	Ingo
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