mbox series

[0/2,v2] mm/migrate: 5.15 fixes for automatic demotion

Message ID 20210924161251.093CCD06@davehans-spike.ostc.intel.com (mailing list archive)
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Series mm/migrate: 5.15 fixes for automatic demotion | expand

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Dave Hansen Sept. 24, 2021, 4:12 p.m. UTC 
Changes from v1:
 * Use memory_notify->status_change_nid to detect node online/offline
   events instead of building a new mechanism.

--

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

 * Fix memory hotplug performance regression 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@intel.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Wei Xu <weixugc@google.com>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: David Rientjes <rientjes@google.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Greg Thelen <gthelen@google.com>
Cc: Yang Shi <yang.shi@linux.alibaba.com>
Cc: Andrew Morton <akpm@linux-foundation.org>