rcu_bp_register(); /* If not yet registered. */
cmm_barrier(); /* Ensure the compiler does not reorder us with mutex */
tmp = URCU_TLS(rcu_reader)->ctr;
+ urcu_assert((tmp & RCU_GP_CTR_NEST_MASK) != RCU_GP_CTR_NEST_MASK);
_rcu_read_lock_update(tmp);
}
*/
static inline void _rcu_read_unlock(void)
{
- /*
- * Finish using rcu before decrementing the pointer.
- */
+ unsigned long tmp;
+
+ tmp = URCU_TLS(rcu_reader)->ctr;
+ urcu_assert(tmp & RCU_GP_CTR_NEST_MASK);
+ /* Finish using rcu before decrementing the pointer. */
cmm_smp_mb();
- _CMM_STORE_SHARED(URCU_TLS(rcu_reader)->ctr, URCU_TLS(rcu_reader)->ctr - RCU_GP_COUNT);
+ _CMM_STORE_SHARED(URCU_TLS(rcu_reader)->ctr, tmp - RCU_GP_COUNT);
cmm_barrier(); /* Ensure the compiler does not reorder us with mutex */
}