Provided by: freebsd-manpages_8.2-1_all bug

NAME
     vfs_unmountall -- unmount all file systems


SYNOPSIS
     #include <sys/param.h>
     #include <sys/mount.h>

     void
     vfs_unmountall(void);


DESCRIPTION
     The vfs_unmountall function, run only at system shutdown, unmounts all
     mounted file systems from most recent to oldest in order to avoid
     handling dependencies.


SEE ALSO
     boot(9)