projects / fio.git / blame
| Commit | Line | Data |
|---|---|---|
| e9f6567a DLM |
1 | /* |
| 2 | * IO priority handling declarations and helper functions common to the | |
| 3 | * libaio and io_uring engines. | |
| 4 | */ | |
| 5 | ||
| 6 | #ifndef FIO_CMDPRIO_H | |
| 7 | #define FIO_CMDPRIO_H | |
| 8 | ||
| 9 | #include "../fio.h" | |
| 10 | ||
| 11 | struct cmdprio { | |
| 12 | unsigned int percentage[DDIR_RWDIR_CNT]; | |
| 12f9d54a DLM |
13 | unsigned int class[DDIR_RWDIR_CNT]; |
| 14 | unsigned int level[DDIR_RWDIR_CNT]; | |
| e9f6567a DLM |
15 | }; |
| 16 | ||
| 17 | static int fio_cmdprio_init(struct thread_data *td, struct cmdprio *cmdprio, | |
| 18 | bool *has_cmdprio) | |
| 19 | { | |
| 20 | struct thread_options *to = &td->o; | |
| 21 | bool has_cmdprio_percentage = false; | |
| 22 | int i; | |
| 23 | ||
| 12f9d54a DLM |
24 | /* |
| 25 | * If cmdprio_percentage is set and cmdprio_class is not set, | |
| 26 | * default to RT priority class. | |
| 27 | */ | |
| e9f6567a | 28 | for (i = 0; i < DDIR_RWDIR_CNT; i++) { |
| 12f9d54a DLM |
29 | if (cmdprio->percentage[i]) { |
| 30 | if (!cmdprio->class[i]) | |
| 31 | cmdprio->class[i] = IOPRIO_CLASS_RT; | |
| e9f6567a | 32 | has_cmdprio_percentage = true; |
| 12f9d54a | 33 | } |
| e9f6567a DLM |
34 | } |
| 35 | ||
| 36 | /* | |
| 37 | * Check for option conflicts | |
| 38 | */ | |
| 39 | if (has_cmdprio_percentage && | |
| 40 | (fio_option_is_set(to, ioprio) || | |
| 41 | fio_option_is_set(to, ioprio_class))) { | |
| 42 | log_err("%s: cmdprio_percentage option and mutually exclusive " | |
| 43 | "prio or prioclass option is set, exiting\n", | |
| 44 | to->name); | |
| 45 | return 1; | |
| 46 | } | |
| 47 | ||
| 48 | *has_cmdprio = has_cmdprio_percentage; | |
| 49 | ||
| 50 | return 0; | |
| 51 | } | |
| 52 | ||
| 53 | #endif |