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| @@ -650,11 +650,23 @@ struct perf_event_mmap_page { · 649 unmodified lines | ||
| 650 | 650 | #define PERF_RECORD_MISC_COMM_EXEC (1 << 13) |
| 651 | 651 | #define PERF_RECORD_MISC_SWITCH_OUT (1 << 13) |
| 652 | 652 | /* |
| 653 | − * Indicates that the content of PERF_SAMPLE_IP points to | |
| 654 | − * the actual instruction that triggered the event. See also | |
| 655 | − * perf_event_attr::precise_ip. | |
| 653 | + * These PERF_RECORD_MISC_* flags below are safely reused | |
| 654 | + * for the following events: | |
| 655 | + * | |
| 656 | + * PERF_RECORD_MISC_EXACT_IP - PERF_RECORD_SAMPLE of precise events | |
| 657 | + * PERF_RECORD_MISC_SWITCH_OUT_PREEMPT - PERF_RECORD_SWITCH* events | |
| 658 | + * | |
| 659 | + * | |
| 660 | + * PERF_RECORD_MISC_EXACT_IP: | |
| 661 | + * Indicates that the content of PERF_SAMPLE_IP points to | |
| 662 | + * the actual instruction that triggered the event. See also | |
| 663 | + * perf_event_attr::precise_ip. | |
| 664 | + * | |
| 665 | + * PERF_RECORD_MISC_SWITCH_OUT_PREEMPT: | |
| 666 | + * Indicates that thread was preempted in TASK_RUNNING state. | |
| 656 | 667 | */ |
| 657 | 668 | #define PERF_RECORD_MISC_EXACT_IP (1 << 14) |
| 669 | +#define PERF_RECORD_MISC_SWITCH_OUT_PREEMPT (1 << 14) | |
| 658 | 670 | /* |
| 659 | 671 | * Reserve the last bit to indicate some extended misc field |
| 660 | 672 | */ |
| @@ -35,6 +35,9 @@ · 34 unmodified lines | ||
| 35 | 35 | /* Clear the entropy pool and associated counters. (Superuser only.) */ |
| 36 | 36 | #define RNDCLEARPOOL _IO( 'R', 0x06 ) |
| 37 | 37 | |
| 38 | +/* Reseed CRNG. (Superuser only.) */ | |
| 39 | +#define RNDRESEEDCRNG _IO( 'R', 0x07 ) | |
| 40 | + | |
| 38 | 41 | struct rand_pool_info { |
| 39 | 42 | int entropy_count; |
| 40 | 43 | int buf_size; |