Re: [PATCH v1 0/4]mm: convert totalram_pages, totalhigh_pages and managed pages to atomic

Andrew Morton
2018-11-07T00:22:10Z

On Fri, 26 Oct 2018 16:30:58 +0530 Arun KS <arunks@codeaurora.org> wrote:

> This series convert totalram_pages, totalhigh_pages and
> zone->managed_pages to atomic variables.

The whole point appears to be removal of managed_page_count_lock, yes?

Why? What is the value of this patchset? If "performance" then are any
measurements available?