USER_LOCK_BUSY
lockres->l_flags &= ~USER_LOCK_BUSY;
lockres->l_flags &= ~USER_LOCK_BUSY;
if (lockres->l_flags & USER_LOCK_BUSY) {
lockres->l_flags |= USER_LOCK_BUSY;
if ((lockres->l_flags & USER_LOCK_BUSY) &&
lockres->l_flags |= USER_LOCK_BUSY;
!user_check_wait_flag(lockres, USER_LOCK_BUSY));
while (lockres->l_flags & USER_LOCK_BUSY) {
lockres->l_flags |= USER_LOCK_BUSY;
lockres->l_flags &= ~USER_LOCK_BUSY;
lockres->l_flags &= ~USER_LOCK_BUSY;