> For the complete documentation index, see [llms.txt](https://man.bsdcn.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://man.bsdcn.org/man9/vfs_unmountall.9.md).

# vfs\_unmountall(9)

`vfs_unmountall` — 卸载所有文件系统

## 名称

`vfs_unmountall`

## 概要

`#include <sys/param.h>`

`#include <sys/mount.h>`

`void vfs_unmountall(void)`

## 描述

`vfs_unmountall()` 函数仅在系统关闭时运行，按从最新到最旧的顺序卸载所有已挂载的文件系统，以避免处理依赖关系。

## 参见

boot(9)