对write的系统调用，进一步探测，更改挂载点的执行函数

[sf1999817]

Pull Request Template

Description/描述

Please include a summary of the change and which issue is fixed. Please also include relevant motivation and context. List any dependencies that are required for this change. 此 pr 解决了什么问题

Fixes # (issue)

Type of change /PR 类型

Please delete options that are not relevant.

• [ ] Bug fix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
• [ ] This change requires a documentation update

How Has This Been Tested?/ 测试方式

Please describe the tests that you ran to verify your changes. Provide instructions so we can reproduce. Please also list any relevant details for your test configuration

Checklist/检查列表

• [ ] My code follows the style guidelines of this project /代码规范检查
• [ ] I have performed a self-review of my own code / 自己已经检查代码
• [ ] I have commented my code, particularly in hard-to-understand areas / 有代码注释，尤其是关键代码
• [ ] I have made corresponding changes to the documentation /变更内容同步到了文档中
• [ ] My changes generate no new warnings / 变更没有新产生告警
• [ ] I have added tests that prove my fix is effective or that my feature works /对修改代码添加了测试用例
• [ ] New and existing unit tests pass locally with my changes / 对单元测试也同步更新了

[helight]

@13186379707 review 一下

[chenamy2017]

运行截图提供下。

[sf1999817]

[13186379707]

你要不再把你这三个文件的格式再调整一下，有的地方缩进是2个空格，有的地方缩进是4个空格 还有这些注释，基本和下一行的代码保持一致