138 	struct vm_region *r2 = NULL;  in rem_um_region()  local
156 	r2 = TAILQ_NEXT(r, link);  in rem_um_region()
157 	if (r2)  in rem_um_region()
158 		last = MIN(last, ROUNDDOWN(r2->va, CORE_MMU_PGDIR_SIZE));  in rem_um_region()
160 	r2 = TAILQ_PREV(r, vm_region_head, link);  in rem_um_region()
161 	if (r2)  in rem_um_region()
163 			    ROUNDUP(r2->va + r2->size, CORE_MMU_PGDIR_SIZE));  in rem_um_region()
415 	struct vm_region *r2 = NULL;  in split_vm_region()  local
420 	r2 = calloc(1, sizeof(*r2));  in split_vm_region()
421 	if (!r2)  in split_vm_region()
428 			free(r2);  in split_vm_region()
433 	r2->mobj = mobj_get(r->mobj);  in split_vm_region()
434 	r2->offset = r->offset + diff;  in split_vm_region()
435 	r2->va = va;  in split_vm_region()
436 	r2->size = r->size - diff;  in split_vm_region()
437 	r2->attr = r->attr;  in split_vm_region()
438 	r2->flags = r->flags;  in split_vm_region()
442 	TAILQ_INSERT_AFTER(&uctx->vm_info.regions, r, r2, link);  in split_vm_region()