NBD_DESTROY_ON_DISCONNECT
test_bit(NBD_DESTROY_ON_DISCONNECT, &nbd->flags))
if ((test_bit(NBD_DESTROY_ON_DISCONNECT, &nbd->flags) &&
if (!test_and_set_bit(NBD_DESTROY_ON_DISCONNECT,
if (test_and_clear_bit(NBD_DESTROY_ON_DISCONNECT,
if (!test_and_set_bit(NBD_DESTROY_ON_DISCONNECT,
if (test_and_clear_bit(NBD_DESTROY_ON_DISCONNECT,
if (test_bit(NBD_DESTROY_ON_DISCONNECT, &nbd->flags))