10 #define read_free_race (read_generation[0] == last_free_gen)
11 #define read_free (free_done && data_access[0])
13 #elif (NR_READERS == 2)
15 #define read_free_race (read_generation[0] == last_free_gen || read_generation[1] == last_free_gen)
16 #define read_free (free_done && (data_access[0] || data_access[1]))
20 #error "Too many readers"
24 #define RCU_GP_CTR_BIT (1 << 7)
25 #define RCU_GP_CTR_NEST_MASK (RCU_GP_CTR_BIT - 1)
27 #ifndef READER_NEST_LEVEL
28 #define READER_NEST_LEVEL 2
31 #define REMOTE_BARRIERS