region_get(vm_regions_t* lead, unsigned long vaddr);
void
-region_copy(struct proc_mm* src, struct proc_mm* dest);
+region_copy_mm(struct proc_mm* src, struct proc_mm* dest);
+
+struct mm_region*
+region_dup(struct mm_region* origin);
#endif /* __LUNAIX_REGION_H */