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. Oleg. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
