linux-kernel - [PATCH 0/2] mm/migrate: 5.15 fixes for automatic demotion

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Date:   Fri, 17 Sep 2021 15:35:04 -0700
From:   Dave Hansen <dave.hansen@...ux.intel.com>
To:     linux-kernel@...r.kernel.org
Cc:     Dave Hansen <dave.hansen@...ux.intel.com>, ying.huang@...el.com,
        mhocko@...e.com, weixugc@...gle.com, osalvador@...e.de,
        rientjes@...gle.com, dan.j.williams@...el.com, david@...hat.com,
        gthelen@...gle.com, yang.shi@...ux.alibaba.com,
        akpm@...ux-foundation.org
Subject: [PATCH 0/2] mm/migrate: 5.15 fixes for automatic demotion

This contains two fixes for the "automatic demotion" code which was
merged into 5.15:

 * Fix memory hotplug performance regresssion by watching
   suppressing any real action on irrelevant hotplug events.
 * Ensure CPU hotplug handler is registered when memory hotplug
   is disabled.

Cc: "Huang, Ying" <ying.huang@...el.com>
Cc: Michal Hocko <mhocko@...e.com>
Cc: Wei Xu <weixugc@...gle.com>
Cc: Oscar Salvador <osalvador@...e.de>
Cc: David Rientjes <rientjes@...gle.com>
Cc: Dan Williams <dan.j.williams@...el.com>
Cc: David Hildenbrand <david@...hat.com>
Cc: Greg Thelen <gthelen@...gle.com>
Cc: Yang Shi <yang.shi@...ux.alibaba.com>
Cc: Andrew Morton <akpm@...ux-foundation.org>