摘要： 复制页目录项和页表的函数是 1 int copy_page_tables(unsigned long from,unsigned long to,long size) 2 { 3 unsigned long * from_page_table; 4 unsigned long * to_page_table; 5 unsigned long this_page; 6 unsigned long * from_dir, * to_dir; 7 unsigned long new_page; 8 unsigned long nr; 9 10 ... 阅读全文