588 	struct rb_node **p, *parent;  in add_nommu_region()  local
592 	parent = NULL;  in add_nommu_region()
595 		parent = *p;  in add_nommu_region()
596 		pregion = rb_entry(parent, struct vm_region, vm_rb);  in add_nommu_region()
607 	rb_link_node(&region->vm_rb, parent, p);  in add_nommu_region()
710 	struct rb_node **p, *parent, *rb_prev;  in add_vma_to_mm()  local
733 	parent = rb_prev = NULL;  in add_vma_to_mm()
736 		parent = *p;  in add_vma_to_mm()
737 		pvma = rb_entry(parent, struct vm_area_struct, vm_rb);  in add_vma_to_mm()
744 			rb_prev = parent;  in add_vma_to_mm()
749 			rb_prev = parent;  in add_vma_to_mm()
754 			rb_prev = parent;  in add_vma_to_mm()
760 	rb_link_node(&vma->vm_rb, parent, p);  in add_vma_to_mm()
768 	__vma_link_list(mm, vma, prev, parent);  in add_vma_to_mm()