XPRT_SOCK_UPD_TIMEOUT
if (test_bit(XPRT_SOCK_UPD_TIMEOUT, &transport->sock_state))
clear_bit(XPRT_SOCK_UPD_TIMEOUT, &transport->sock_state);
clear_bit(XPRT_SOCK_UPD_TIMEOUT, &transport->sock_state);
set_bit(XPRT_SOCK_UPD_TIMEOUT, &transport->sock_state);