/* urcu_gp_ctr = RCU_GP_COUNT | (~RCU_GP_CTR_BIT or RCU_GP_CTR_BIT) */
if (likely(!(tmp & RCU_GP_CTR_NEST_MASK)))
urcu_active_readers = urcu_gp_ctr;
else
urcu_active_readers = tmp + RCU_GP_COUNT;
/* urcu_gp_ctr = RCU_GP_COUNT | (~RCU_GP_CTR_BIT or RCU_GP_CTR_BIT) */
if (likely(!(tmp & RCU_GP_CTR_NEST_MASK)))
urcu_active_readers = urcu_gp_ctr;
else
urcu_active_readers = tmp + RCU_GP_COUNT;