umount: Adding unmount functions to be used in shutdown

This functions will:
   - umount all mount points that aren't API
   - remount read-only all mount points that can't be umounted
   - umount all swap devices.
   - detach all loopback devices

TODO:
   - umount dms

Mountpoints are being read from /proc/self/mountinfo.
Swaps are being read from /proc/swaps.
Loop devices from /sys/class/block/loop*.

1 files changed, 31 insertions, 0 deletions

diff --git a/src/umount.h b/src/umount.h
new file mode 100644
index 0000000000..aeccc00f1e
--- /dev/null
+++ b/src/umount.h
@@ -0,0 +1,31 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+#ifndef fooumounthfoo
+#define fooumounthfoo
+
+/***
+  This file is part of systemd.
+
+  Copyright 2010 ProFUSION embedded systems
+
+  systemd is free software; you can redistribute it and/or modify it
+  under the terms of the GNU General Public License as published by
+  the Free Software Foundation; either version 2 of the License, or
+  (at your option) any later version.
+
+  systemd is distributed in the hope that it will be useful, but
+  WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+  General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+int umount_all(void);
+
+int swapoff_all(void);
+
+int loopback_detach_all(void);
+
+#endif