1127 	struct rb_root *root;  in stable_tree_search()  local
1141 	root = root_stable_tree + nid;  in stable_tree_search()
1143 	new = &root->rb_node;  in stable_tree_search()
1208 	rb_insert_color(&page_node->node, root);  in stable_tree_search()
1216 		rb_replace_node(&stable_node->node, &page_node->node, root);  in stable_tree_search()
1219 		rb_erase(&stable_node->node, root);  in stable_tree_search()
1238 	struct rb_root *root;  in stable_tree_insert()  local
1245 	root = root_stable_tree + nid;  in stable_tree_insert()
1248 	new = &root->rb_node;  in stable_tree_insert()
1297 	rb_insert_color(&stable_node->node, root);  in stable_tree_insert()
1322 	struct rb_root *root;  in unstable_tree_search_insert()  local
1327 	root = root_unstable_tree + nid;  in unstable_tree_search_insert()
1328 	new = &root->rb_node;  in unstable_tree_search_insert()
1377 	rb_insert_color(&rmap_item->node, root);  in unstable_tree_search_insert()
1873 	} else if (anon_vma->root == vma->anon_vma->root &&  in ksm_might_need_to_copy()