lib/bpf/libbpf.c

515 	unsigned int max_entries;
1345 		map->def.max_entries = 1;
1700 static size_t array_map_mmap_sz(unsigned int value_sz, unsigned int max_entries)
1705 	map_sz = (size_t)roundup(value_sz, 8) * max_entries;
1716 		return array_map_mmap_sz(map->def.value_size, map->def.max_entries);
1718 		return page_sz * map->def.max_entries;
1864 	def->max_entries = 1;
2462 		} else if (strcmp(name, "max_entries") == 0) {
2463 			if (!get_map_field_int(map_name, btf, m, &map_def->max_entries))
2669 	/* Kernel expects BPF_MAP_TYPE_RINGBUF's max_entries to be
2678 	 * requirements and substitute correct max_entries for map creation.
2703 	map->def.max_entries = def->max_entries;
2711 	/* auto-adjust BPF ringbuf map max_entries to be a multiple of page size */
2713 		map->def.max_entries = adjust_ringbuf_sz(map->def.max_entries);
2731 		pr_debug("map '%s': found max_entries = %u.\n", map->name, def->max_entries);
4727 		else if (sscanf(buff, "max_entries:\t%u", &val) == 1)
4728 			info->max_entries = val;
4796 	map->def.max_entries = info.max_entries;
4812 	return map->def.max_entries;
4823 int bpf_map__set_max_entries(struct bpf_map *map, __u32 max_entries)
4828 	map->def.max_entries = max_entries;
4830 	/* auto-adjust BPF ringbuf map max_entries to be a multiple of page size */
4832 		map->def.max_entries = adjust_ringbuf_sz(map->def.max_entries);
4962 		map_info.max_entries == map->def.max_entries &&
5129 				    def->key_size, def->value_size, def->max_entries,
5141 					def->max_entries, &create_attr);
5157 					def->max_entries, &create_attr);
5271 	if (map->def.type == BPF_MAP_TYPE_PERF_EVENT_ARRAY && !map->def.max_entries) {
5281 		map->def.max_entries = nr_cpus;
10113 		mmap_new_sz = array_map_mmap_sz(size, map->def.max_entries);
13091 		if (map.max_entries && map.max_entries < pb->cpu_cnt)
13092 			pb->cpu_cnt = map.max_entries;