260 struct bpf_map {  struct
261 	const struct bpf_map_ops *ops;  argument
262 	struct bpf_map *inner_map_meta;  argument
266 	enum bpf_map_type map_type;  argument
267 	u32 key_size;
268 	u32 value_size;
269 	u32 max_entries;
270 	u64 map_extra; /* any per-map-type extra fields */
271 	u32 map_flags;
272 	u32 id;
273 	struct btf_record *record;
274 	int numa_node;
275 	u32 btf_key_type_id;
276 	u32 btf_value_type_id;
277 	u32 btf_vmlinux_value_type_id;
278 	struct btf *btf;
280 	struct obj_cgroup *objcg;
282 	char name[BPF_OBJ_NAME_LEN];
283 	struct mutex freeze_mutex;
284 	atomic64_t refcnt;
285 	atomic64_t usercnt;
287 	union {
291 	atomic64_t writecnt;
297 	struct {
303 	} owner;
304 	bool bypass_spec_v1;
305 	bool frozen; /* write-once; write-protected by freeze_mutex */
306 	bool free_after_mult_rcu_gp;
307 	bool free_after_rcu_gp;
308 	atomic64_t sleepable_refcnt;
309 	s64 __percpu *elem_count;