#define read_free_race	(read_generation[0] == last_free_gen)
#define read_free	(free_done && data_access[0])

#define TEST_SIGNAL
//#define TEST_SIGNAL_ON_READ
#define TEST_SIGNAL_ON_WRITE

#define RCU_GP_CTR_BIT (1 << 7)
#define RCU_GP_CTR_NEST_MASK (RCU_GP_CTR_BIT - 1)

#ifndef READER_NEST_LEVEL
#define READER_NEST_LEVEL 1
#endif

#define REMOTE_BARRIERS