Commit 8e1bf051 authored by Oscar Salvador's avatar Oscar Salvador Committed by Andrew Morton
Browse files

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

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: default avatarOscar Salvador <osalvador@suse.de>
Reviewed-by: default avatarJonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: default avatarHarry Yoo <harry.yoo@oracle.com>
Reviewed-by: default avatarVlastimil Babka <vbabka@suse.cz>
Acked-by: default avatarDavid Hildenbrand <david@redhat.com>
Cc: Hyeonggon Yoo <42.hyeyoo@gmail.com>
Cc: Rakie Kim <rakie.kim@sk.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
parent 487d45d1

kernel/cgroup/cpuset.c

+1 −1
Original line number Diff line number Diff line
@@ -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);