1 files changed, 47 insertions, 0 deletions
diff --git a/libdiskfs/remount.c b/libdiskfs/remount.c
new file mode 100644
index 00000000..1ed622f2
--- /dev/null
+++ b/libdiskfs/remount.c
@@ -0,0 +1,47 @@
+/* Remount an active filesystem
+
+   Copyright (C) 1995, 1996 Free Software Foundation, Inc.
+
+   Written by Miles Bader <miles@gnu.ai.mit.edu>
+
+   This file is part of the GNU Hurd.
+
+   The GNU Hurd 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, or (at
+   your option) any later version.
+
+   The GNU Hurd 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 this program; if not, write to the Free Software
+   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
+
+#include "priv.h"
+
+/* Re-read all incore data structures from disk.  This will only work if
+   DISKFS_READONLY is true.  DISKFS_FSYS_LOCK should be held while calling
+   this routine.  */
+error_t
+diskfs_remount ()
+{
+  error_t err;
+
+  if (! diskfs_check_readonly ())
+    return EBUSY;
+
+  err = ports_inhibit_class_rpcs (diskfs_protid_class);
+  if (err)
+    return err;
+
+  err = diskfs_reload_global_state ();
+  if (!err)
+    err = diskfs_node_iterate (diskfs_node_reload);
+
+  ports_resume_class_rpcs (diskfs_protid_class);
+
+  return err;
+}