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

* Oleg Nesterov <oleg@redhat.com> 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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