evt_head 412 tools/perf/util/mmap.c u64 evt_head = *start; evt_head 418 tools/perf/util/mmap.c if (evt_head - *start >= (unsigned int)size) { evt_head 420 tools/perf/util/mmap.c if (evt_head - *start > (unsigned int)size) evt_head 421 tools/perf/util/mmap.c evt_head -= pheader->size; evt_head 422 tools/perf/util/mmap.c *end = evt_head; evt_head 426 tools/perf/util/mmap.c pheader = (struct perf_event_header *)(buf + (evt_head & mask)); evt_head 430 tools/perf/util/mmap.c *end = evt_head; evt_head 434 tools/perf/util/mmap.c evt_head += pheader->size; evt_head 435 tools/perf/util/mmap.c pr_debug3("move evt_head: %"PRIx64"\n", evt_head);