Are there any utilities which support umount2(2)'s MNT_EXPIRE? `man umount2` says: > > MNT_EXPIRE (since Linux 2.6.8) > Mark the mount point as expired. If a mount point is not > currently in use, then an initial call to umount2() with this > flag fails with the error EAGAIN, but marks the mount point as > expired. The mount point remains expired as long as it isn't > accessed by any process. A second umount2() call specifying > MNT_EXPIRE unmounts an expired mount point. This flag cannot > be specified with either MNT_FORCE or MNT_DETACH. > `umount` doesn't seem to support it. Are there any utilities which allow one use this flag?

You can easily access C functions from Python.


#!/usr/bin/env python
import os, sys
from ctypes import *
libc = CDLL('libc.so.6', use_errno=True)
MNT_EXPIRE = 4
libc.umount2(c_char_p(sys.argv[1]), c_int(MNT_EXPIRE))
if get_errno() != 0:
print os.strerror(get_errno())
exit(1)