diff options
Diffstat (limited to 'kernel/events/core.c')
| -rw-r--r-- | kernel/events/core.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/kernel/events/core.c b/kernel/events/core.c index 68baa8194d9f..db016e418931 100644 --- a/kernel/events/core.c +++ b/kernel/events/core.c @@ -10150,8 +10150,20 @@ void perf_tp_event(u16 event_type, u64 count, void *record, int entry_size, perf_trace_buf_update(record, event_type); hlist_for_each_entry_rcu(event, head, hlist_entry) { - if (perf_tp_event_match(event, &data, regs)) + if (perf_tp_event_match(event, &data, regs)) { perf_swevent_event(event, count, &data, regs); + + /* + * Here use the same on-stack perf_sample_data, + * some members in data are event-specific and + * need to be re-computed for different sweveents. + * Re-initialize data->sample_flags safely to avoid + * the problem that next event skips preparing data + * because data->sample_flags is set. + */ + perf_sample_data_init(&data, 0, 0); + perf_sample_save_raw_data(&data, &raw); + } } /* |