linux-master/mm/ksm.c

1824 	struct ksm_stable_node *page_node;
1826 	page_node = page_stable_node(page);
1827 	if (page_node && page_node->head != &migrate_nodes) {
1906 			if (page_node) {
1907 				VM_BUG_ON(page_node->head != &migrate_nodes);
1964 	if (!page_node)
1967 	list_del(&page_node->list);
1968 	DO_NUMA(page_node->nid = nid);
1969 	rb_link_node(&page_node->node, parent, new);
1970 	rb_insert_color(&page_node->node, root);
1972 	if (is_page_sharing_candidate(page_node)) {
1991 		if (page_node) {
1992 			VM_BUG_ON(page_node->head != &migrate_nodes);
1993 			list_del(&page_node->list);
1994 			DO_NUMA(page_node->nid = nid);
1996 					&page_node->node,
1998 			if (is_page_sharing_candidate(page_node))
2009 		if (page_node) {
2010 			VM_BUG_ON(page_node->head != &migrate_nodes);
2011 			list_del(&page_node->list);
2012 			DO_NUMA(page_node->nid = nid);
2013 			stable_node_chain_add_dup(page_node, stable_node);
2014 			if (is_page_sharing_candidate(page_node))
2053 	VM_BUG_ON(page_node->head != &migrate_nodes);
2054 	list_del(&page_node->list);
2055 	DO_NUMA(page_node->nid = nid);
2056 	stable_node_chain_add_dup(page_node, stable_node);