39 	map->base = mmap(NULL, perf_mmap__mmap_len(map), mp->prot,  in perf_mmap__mmap()
41 	if (map->base == MAP_FAILED) {  in perf_mmap__mmap()
42 		map->base = NULL;  in perf_mmap__mmap()
53 	if (map && map->base != NULL) {  in perf_mmap__munmap()
54 		munmap(map->base, perf_mmap__mmap_len(map));  in perf_mmap__munmap()
55 		map->base = NULL;  in perf_mmap__munmap()
70 	BUG_ON(map->base && refcount_read(&map->refcnt) == 0);  in perf_mmap__put()
78 	ring_buffer_write_tail(md->base, tail);  in perf_mmap__write_tail()
83 	return ring_buffer_read_head(map->base);  in perf_mmap__read_head()
88 	struct perf_event_mmap_page *pc = map->base;  in perf_mmap__empty()
144 	unsigned char *data = md->base + page_size;  in __perf_mmap__read_init()
206 	unsigned char *data = map->base + page_size;  in perf_mmap__read()
304 	struct perf_event_mmap_page *pc = map->base;  in perf_mmap__read_self()