Re: [PATCH v2 1/4] mm: Move recent_rotated pages calculation to shrink_inactive_list()

From: Andrew Morton
Date: Thu Feb 14 2019 - 15:58:04 EST

On Thu, 14 Feb 2019 13:35:21 +0300 Kirill Tkhai <ktkhai@xxxxxxxxxxxxx> wrote:

> Currently, struct reclaim_stat::nr_activate is a local variable,
> used only in shrink_page_list(). This patch introduces another
> local variable pgactivate to use instead of it, and reuses
> nr_activate to account number of active pages.
> Note, that we need nr_activate to be an array, since type of page
> may change during shrink_page_list() (see ClearPageSwapBacked()).

The patch has nothing to do with the Subject:

reclaim_stat::nr_activate is not a local variable - it is a struct member.

I can kinda see what the patch is doing but the changelog needs more
care, please.