ECRYPTFS_DAEMON_MISCDEV_OPEN
BUG_ON(!(daemon->flags & ECRYPTFS_DAEMON_MISCDEV_OPEN));
daemon->flags &= ~ECRYPTFS_DAEMON_MISCDEV_OPEN;
if (daemon->flags & ECRYPTFS_DAEMON_MISCDEV_OPEN) {
daemon->flags |= ECRYPTFS_DAEMON_MISCDEV_OPEN;