NBD_RT_BOUND
!test_bit(NBD_RT_BOUND, &config->runtime_flags))
test_bit(NBD_RT_BOUND, &config->runtime_flags))) {
if (!test_bit(NBD_RT_BOUND, &config->runtime_flags) ||
set_bit(NBD_RT_BOUND, &config->runtime_flags);
clear_bit(NBD_RT_BOUND, &nbd->config->runtime_flags);
if (!test_bit(NBD_RT_BOUND, &config->runtime_flags) ||