Re: [PATCH v2 0/3] Split huge PMD mapping of vmemmap pages

[Andrew Morton]

On Sat, 12 Jun 2021 17:45:52 +0800 Muchun Song <songmuchun@xxxxxxxxxxxxx> wrote:

> In order to reduce the difficulty of code review in series[1]. We disable
> huge PMD mapping of vmemmap pages when that feature is enabled. In this
> series, we do not disable huge PMD mapping of vmemmap pages anymore. We
> will split huge PMD mapping when needed. When HugeTLB pages are freed from
> the pool we do not attempt coalasce and move back to a PMD mapping because
> it is much more complex.
> 
> [1] https://lore.kernel.org/linux-doc/20210510030027.56044-1-songmuchun@xxxxxxxxxxxxx/

[1] had a nice [0/n] description but the v2 series lost that.  I could
copy/paste the v1 changelogging but I am unsure that it has been
maintained appropriately for the v2 series.

I think I'll pass on this v2 pending additional review input.  Please reinstate
the [0/n] overview if/when resending?