582  * When merge_across_nodes knob is set to 1, there are only two rb-trees for
2941 	unsigned long knob;  in merge_across_nodes_store()  local
2943 	err = kstrtoul(buf, 10, &knob);  in merge_across_nodes_store()
2946 	if (knob > 1)  in merge_across_nodes_store()
2951 	if (ksm_merge_across_nodes != knob) {  in merge_across_nodes_store()
2976 			ksm_merge_across_nodes = knob;  in merge_across_nodes_store()
2977 			ksm_nr_node_ids = knob ? 1 : nr_node_ids;  in merge_across_nodes_store()
3020 	int knob;  in max_page_sharing_store()  local
3022 	err = kstrtoint(buf, 10, &knob);  in max_page_sharing_store()
3030 	if (knob < 2)  in max_page_sharing_store()
3033 	if (READ_ONCE(ksm_max_page_sharing) == knob)  in max_page_sharing_store()
3038 	if (ksm_max_page_sharing != knob) {  in max_page_sharing_store()
3042 			ksm_max_page_sharing = knob;  in max_page_sharing_store()