TCON_LINK_PENDING
set_bit(TCON_LINK_PENDING, &newtlink->tl_flags);
err = wait_on_bit(&tlink->tl_flags, TCON_LINK_PENDING,
if (test_and_set_bit(TCON_LINK_PENDING, &tlink->tl_flags))
clear_bit(TCON_LINK_PENDING, &tlink->tl_flags);
wake_up_bit(&tlink->tl_flags, TCON_LINK_PENDING);