EEDEV_F_BUSY
VERIFY0(hdl->eh_flags & EEDEV_F_BUSY);
if ((hdl->eh_flags & EEDEV_F_BUSY) != 0) {
while ((hdl->eh_flags & EEDEV_F_BUSY) != 0) {
hdl->eh_flags |= EEDEV_F_BUSY;
hdl->eh_flags &= ~(EEDEV_F_HELD | EEDEV_F_BUSY);
hdl->eh_flags &= ~(EEDEV_F_HELD | EEDEV_F_BUSY);
hdl->eh_flags &= ~EEDEV_F_BUSY;
VERIFY0(eh->eh_flags & EEDEV_F_BUSY);
while ((hdl->eh_flags & EEDEV_F_BUSY) != 0 ||
VERIFY0(hdl->eh_flags & EEDEV_F_BUSY);