SRCU_SIZE_WAIT_BARRIER
if (smp_load_acquire(&sup->srcu_size_state) < SRCU_SIZE_WAIT_BARRIER)
if (ss_state < SRCU_SIZE_WAIT_BARRIER)
if (smp_load_acquire(&ssp->srcu_sup->srcu_size_state) < SRCU_SIZE_WAIT_BARRIER)
smp_store_release(&ssp->srcu_sup->srcu_size_state, SRCU_SIZE_WAIT_BARRIER);
if (ss_state < SRCU_SIZE_WAIT_BARRIER) {