Searched refs:data_tail (Results 1 – 4 of 4) sorted by relevance
154 static void write_data_tail(volatile struct perf_event_mmap_page *perf_header, uint64_t data_tail) { in write_data_tail() argument156 perf_header->data_tail = data_tail; in write_data_tail()174 for (data_head = read_data_head(perf_header); perf_header->data_tail != data_head; in perf_reader_event_read()176 uint64_t data_tail = perf_header->data_tail; in perf_reader_event_read() local179 begin = base + data_tail % buffer_size; in perf_reader_event_read()183 end = base + (data_tail + e->size) % buffer_size; in perf_reader_event_read()214 write_data_tail(perf_header, perf_header->data_tail + e->size); in perf_reader_event_read()
492 __u64 data_tail; /* user-space written tail */ member
610 __u64 data_tail; /* user-space written tail */ member
322 ATOMIC_SET(pem->data_tail, 0); in arch_perfMmapReset()