#define NR_READERS 2
#define NR_WRITERS 1

#define NR_PROCS 3


#if (NR_READERS == 1)

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

#elif (NR_READERS == 2)

#define read_free_race	(read_generation[0] == last_free_gen || read_generation[1] == last_free_gen)
#define read_free	(free_done && (data_access[0] || data_access[1]))

#else

#error "Too many readers"

#endif

#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 2
#endif

#define REMOTE_BARRIERS