Re: [PATCH v5 4/4] mm/sparse: Optimize memmap allocation during sparse_init()

[Pavel Tatashin]

> > This is done so nr_consumed_maps does not get out of sync with the
> > current pnum. pnum does not equal to nr_consumed_maps, as there are
> > may be holes in pnums, but there is one-to-one correlation.
> Can this be made more clear in the code?

Absolutely. I've done it here:
http://lkml.kernel.org/r/20180628173010.23849-1-pasha.tatashin@xxxxxxxxxx

Pavel