From: Oscar Salvador <osalvador@xxxxxxx> In node_states_check_changes_online, we check if the node will have to be set for any of the N_*_MEMORY states after the pages have been onlined. Later on, we perform the activation in node_states_set_node. Currently, in node_states_set_node we set the node to N_MEMORY unconditionally. This means that we will call node_set_state for N_MEMORY every time pages go online, but we only need to do it if the node has not yet been set for N_MEMORY. Signed-off-by: Oscar Salvador <osalvador@xxxxxxx> --- mm/memory_hotplug.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c index 60b67f09956e..4a89915e1467 100644 --- a/mm/memory_hotplug.c +++ b/mm/memory_hotplug.c @@ -746,7 +746,8 @@ static void node_states_set_node(int node, struct memory_notify *arg) if (arg->status_change_nid_high >= 0) node_set_state(node, N_HIGH_MEMORY); - node_set_state(node, N_MEMORY); + if (arg->status_change_nid >= 0) + node_set_state(node, N_MEMORY); } static void __meminit resize_zone_range(struct zone *zone, unsigned long start_pfn, -- 2.13.6
