| 1 | |
| 2 | #define NR_READERS 2 |
| 3 | #define NR_WRITERS 1 |
| 4 | |
| 5 | #define NR_PROCS 3 |
| 6 | |
| 7 | |
| 8 | #if (NR_READERS == 1) |
| 9 | |
| 10 | #define read_free_race (read_generation[0] == last_free_gen) |
| 11 | #define read_free (free_done && data_access[0]) |
| 12 | |
| 13 | #elif (NR_READERS == 2) |
| 14 | |
| 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])) |
| 17 | |
| 18 | #else |
| 19 | |
| 20 | #error "Too many readers" |
| 21 | |
| 22 | #endif |
| 23 | |
| 24 | #define RCU_GP_CTR_BIT (1 << 7) |
| 25 | #define RCU_GP_CTR_NEST_MASK (RCU_GP_CTR_BIT - 1) |
| 26 | |
| 27 | #ifndef READER_NEST_LEVEL |
| 28 | #define READER_NEST_LEVEL 2 |
| 29 | #endif |
| 30 | |
| 31 | #define REMOTE_BARRIERS |