Since patch 316346243be6 has already updated the minimum gcc version to 5.1. The previous problem mentioned in patch f02c69680088 is not existed. So we can now revert to use hotplug_memory_notifier() directly rather than register_hotmemory_notifier(). Signed-off-by: Liu Shixin <liushixin2@xxxxxxxxxx> --- mm/slub.c | 7 +------ 1 file changed, 1 insertion(+), 6 deletions(-) diff --git a/mm/slub.c b/mm/slub.c index 234bf0e44262..9a0853e01fd7 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -4698,11 +4698,6 @@ static int slab_memory_callback(struct notifier_block *self, return ret; } -static struct notifier_block slab_memory_callback_nb = { - .notifier_call = slab_memory_callback, - .priority = SLAB_CALLBACK_PRI, -}; - /******************************************************************** * Basic setup of slabs *******************************************************************/ @@ -4768,7 +4763,7 @@ void __init kmem_cache_init(void) create_boot_cache(kmem_cache_node, "kmem_cache_node", sizeof(struct kmem_cache_node), SLAB_HWCACHE_ALIGN, 0, 0); - register_hotmemory_notifier(&slab_memory_callback_nb); + hotplug_memory_notifier(slab_memory_callback, SLAB_CALLBACK_PRI); /* Able to allocate the per node structures */ slab_state = PARTIAL; -- 2.25.1