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Date: Thu, 19 Feb 2026 14:11:16 -0800
From: Andrew Morton <akpm@linux-foundation.org>
To: "JP Kobryn (Meta)" <jp.kobryn@linux.dev>
Cc: linux-mm@kvack.org, mst@redhat.com, mhocko@suse.com, vbabka@suse.cz,
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Subject: Re: [PATCH v4] mm: move pgscan, pgsteal, pgrefill to node stats
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On Thu, 19 Feb 2026 09:11:24 -0800 "JP Kobryn (Meta)" <jp.kobryn@linux.dev> wrote:

> There are situations where reclaim kicks in on a system with free memory.
> One possible cause is a NUMA imbalance scenario where one or more nodes are
> under pressure. It would help if we could easily identify such nodes.
> 
> Move the pgscan, pgsteal, and pgrefill counters from vm_event_item to
> node_stat_item to provide per-node reclaim visibility. With these counters
> as node stats, the values are now displayed in the per-node section of
> /proc/zoneinfo, which allows for quick identification of the affected
> nodes.

This runs afoul of
https://lkml.kernel.org/r/20260123150108.43443-2-wujianyue000@gmail.com.
Please redo against mm.git's mm-new branch?