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* refactor(vfs/syscall): 把sys_open加到调用表 Signed-off-by: longjin <longjin@DragonOS.org> * refactor(vfs): 将文件系统相关系统调用拆分为独立模块 将 `close`、`fstat`、`lstat` 和 `stat` 系统调用从 `mod.rs` 中拆分为独立的模块 Signed-off-by: longjin <longjin@DragonOS.org> * refactor(vfs): 将ioctl系统调用处理逻辑移至独立模块 将ioctl系统调用的处理逻辑从`mod.rs`中提取到独立的`sys_ioctl.rs`模块中,以提高代码的可维护性和可读性。 Signed-off-by: longjin <longjin@DragonOS.org> * refactor(vfs): 重构stat相关系统调用实现 将sys_fstat、sys_lstat和sys_stat的实现统一改为调用Syscall::newfstat,移除重复代码 Signed-off-by: longjin <longjin@DragonOS.org> * refactor(vfs): 将do_open函数提取到open_utils模块 将sys_open.rs中的do_open函数提取到新建的open_utils模块,并在多处调用处更新引用路径。 Signed-off-by: longjin <longjin@DragonOS.org> --------- Signed-off-by: longjin <longjin@DragonOS.org>