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kernel,cpuset: use node-notifier instead of memory-notifier

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cpuset is only concerned when a numa node changes its memory state, as it
needs to know the current numa nodes with memory to keep an updated
mems_allowed mask.  So stop using the memory notifier and use the new numa
node notifer instead.

Link: https://lkml.kernel.org/r/20250616135158.450136-9-osalvador@suse.de
Signed-off-by: Oscar Salvador <osalvador@suse.de>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Harry Yoo <harry.yoo@oracle.com>
Reviewed-by: Vlastimil Babka <vbabka@suse.cz>
Acked-by: David Hildenbrand <david@redhat.com>
Cc: Hyeonggon Yoo <42.hyeyoo@gmail.com>
Cc: Rakie Kim <rakie.kim@sk.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Oscar Salvador 2025-06-16 15:51:51 +02:00 committed by Andrew Morton
parent 487d45d1ab
commit 8e1bf051c5
1 changed files with 1 additions and 1 deletions
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2
kernel/cgroup/cpuset.c
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@ -4051,7 +4051,7 @@ void __init cpuset_init_smp(void)
cpumask_copy(top_cpuset.effective_cpus, cpu_active_mask);
top_cpuset.effective_mems = node_states[N_MEMORY];
hotplug_memory_notifier(cpuset_track_online_nodes, CPUSET_CALLBACK_PRI);
hotplug_node_notifier(cpuset_track_online_nodes, CPUSET_CALLBACK_PRI);
cpuset_migrate_mm_wq = alloc_ordered_workqueue("cpuset_migrate_mm", 0);
BUG_ON(!cpuset_migrate_mm_wq);