488 	struct rb_node **p, *parent;  in add_nommu_region()  local
492 	parent = NULL;  in add_nommu_region()
495 		parent = *p;  in add_nommu_region()
496 		pregion = rb_entry(parent, struct vm_region, vm_rb);  in add_nommu_region()
507 	rb_link_node(&region->vm_rb, parent, p);  in add_nommu_region()
586 	struct rb_node **p, *parent, *rb_prev;  in add_vma_to_mm()  local
605 	parent = rb_prev = NULL;  in add_vma_to_mm()
608 		parent = *p;  in add_vma_to_mm()
609 		pvma = rb_entry(parent, struct vm_area_struct, vm_rb);  in add_vma_to_mm()
616 			rb_prev = parent;  in add_vma_to_mm()
621 			rb_prev = parent;  in add_vma_to_mm()
626 			rb_prev = parent;  in add_vma_to_mm()
632 	rb_link_node(&vma->vm_rb, parent, p);  in add_vma_to_mm()
640 	__vma_link_list(mm, vma, prev, parent);  in add_vma_to_mm()