Lines Matching defs:evt_head
109 u64 evt_head = *start;
115 if (evt_head - *start >= (unsigned int)size) {
117 if (evt_head - *start > (unsigned int)size)
118 evt_head -= pheader->size;
119 *end = evt_head;
123 pheader = (struct perf_event_header *)(buf + (evt_head & mask));
127 *end = evt_head;
131 evt_head += pheader->size;
132 pr_debug3("move evt_head: %"PRIx64"\n", evt_head);