Re: [PATCH 2/3] mm: calculate deferred pages after skipping mirrored memory

From: Andrew Morton
Date: Tue Jul 24 2018 - 21:14:45 EST

On Tue, 24 Jul 2018 19:55:19 -0400 Pavel Tatashin <pasha.tatashin@xxxxxxxxxx> wrote:

> update_defer_init() should be called only when struct page is about to be
> initialized. Because it counts number of initialized struct pages, but
> there we may skip struct pages if there is some mirrored memory.

What are the runtime effects of this error?