1 files changed, 49 insertions, 0 deletions
diff --git a/libdiskfs/peropen-rele.c b/libdiskfs/peropen-rele.c
new file mode 100644
index 00000000..6974e86a
--- /dev/null
+++ b/libdiskfs/peropen-rele.c
@@ -0,0 +1,49 @@
+/* 
+   Copyright (C) 1994, 1996, 1997 Free Software Foundation
+
+   This program 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.
+
+   This program 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 <sys/file.h>
+#include "priv.h"
+
+/* Decrement the reference count on a peropen structure. */
+void
+diskfs_release_peropen (struct peropen *po)
+{
+  mutex_lock (&po->np->lock);
+
+  if (--po->refcnt)
+    {
+      mutex_unlock (&po->np->lock);
+      return;
+    }
+
+  if (po->root_parent)
+    mach_port_deallocate (mach_task_self (), po->root_parent);
+
+  if (po->shadow_root && po->shadow_root != po->np)
+    diskfs_nrele (po->shadow_root);
+
+  if (po->shadow_root_parent)
+    mach_port_deallocate (mach_task_self (), po->shadow_root_parent);
+
+  if (po->lock_status != LOCK_UN)
+    fshelp_acquire_lock (&po->np->userlock, &po->lock_status,
+			 &po->np->lock, LOCK_UN);
+
+  diskfs_nput (po->np);
+
+  free (po);
+}