--- zzzz-none-000/linux-2.6.19.2/fs/ecryptfs/super.c	2007-01-10 19:10:37.000000000 +0000
+++ davinci-8020-5505/linux-2.6.19.2/fs/ecryptfs/super.c	2007-01-11 07:38:19.000000000 +0000
@@ -138,6 +138,23 @@
 }
 
 /**
+ * ecryptfs_umount_begin
+ *
+ * Called in do_umount().
+ */
+static void ecryptfs_umount_begin(struct vfsmount *vfsmnt, int flags)
+{
+	struct vfsmount *lower_mnt =
+		ecryptfs_dentry_to_lower_mnt(vfsmnt->mnt_sb->s_root);
+	struct super_block *lower_sb;
+
+	mntput(lower_mnt);
+	lower_sb = lower_mnt->mnt_sb;
+	if (lower_sb->s_op->umount_begin)
+		lower_sb->s_op->umount_begin(lower_mnt, flags);
+}
+
+/**
  * ecryptfs_show_options
  *
  * Prints the directory we are currently mounted over.
@@ -176,5 +193,6 @@
 	.statfs = ecryptfs_statfs,
 	.remount_fs = NULL,
 	.clear_inode = ecryptfs_clear_inode,
+	.umount_begin = ecryptfs_umount_begin,
 	.show_options = ecryptfs_show_options
 };