26 	struct bpf_map *map;  in find_and_alloc_map()  local
30 			map = tl->ops->map_alloc(attr);  in find_and_alloc_map()
31 			if (IS_ERR(map))  in find_and_alloc_map()
32 				return map;  in find_and_alloc_map()
33 			map->ops = tl->ops;  in find_and_alloc_map()
34 			map->map_type = attr->map_type;  in find_and_alloc_map()
35 			return map;  in find_and_alloc_map()
50 	struct bpf_map *map = container_of(work, struct bpf_map, work);  in bpf_map_free_deferred()  local
53 	map->ops->map_free(map);  in bpf_map_free_deferred()
59 void bpf_map_put(struct bpf_map *map)  in bpf_map_put()  argument
61 	if (atomic_dec_and_test(&map->refcnt)) {  in bpf_map_put()
62 		INIT_WORK(&map->work, bpf_map_free_deferred);  in bpf_map_put()
63 		schedule_work(&map->work);  in bpf_map_put()
69 	struct bpf_map *map = filp->private_data;  in bpf_map_release()  local
71 	bpf_map_put(map);  in bpf_map_release()
91 	struct bpf_map *map;  in map_create()  local
99 	map = find_and_alloc_map(attr);  in map_create()
100 	if (IS_ERR(map))  in map_create()
101 		return PTR_ERR(map);  in map_create()
103 	atomic_set(&map->refcnt, 1);  in map_create()
105 	err = anon_inode_getfd("bpf-map", &bpf_map_fops, map, O_RDWR | O_CLOEXEC);  in map_create()
114 	map->ops->map_free(map);  in map_create()
123 	struct bpf_map *map;  in bpf_map_get()  local
133 	map = f.file->private_data;  in bpf_map_get()
135 	return map;  in bpf_map_get()
153 	struct bpf_map *map;  in map_lookup_elem()  local
160 	map = bpf_map_get(f);  in map_lookup_elem()
161 	if (IS_ERR(map))  in map_lookup_elem()
162 		return PTR_ERR(map);  in map_lookup_elem()
165 	key = kmalloc(map->key_size, GFP_USER);  in map_lookup_elem()
170 	if (copy_from_user(key, ukey, map->key_size) != 0)  in map_lookup_elem()
174 	value = kmalloc(map->value_size, GFP_USER);  in map_lookup_elem()
179 	ptr = map->ops->map_lookup_elem(map, key);  in map_lookup_elem()
181 		memcpy(value, ptr, map->value_size);  in map_lookup_elem()
189 	if (copy_to_user(uvalue, value, map->value_size) != 0)  in map_lookup_elem()
211 	struct bpf_map *map;  in map_update_elem()  local
218 	map = bpf_map_get(f);  in map_update_elem()
219 	if (IS_ERR(map))  in map_update_elem()
220 		return PTR_ERR(map);  in map_update_elem()
223 	key = kmalloc(map->key_size, GFP_USER);  in map_update_elem()
228 	if (copy_from_user(key, ukey, map->key_size) != 0)  in map_update_elem()
232 	value = kmalloc(map->value_size, GFP_USER);  in map_update_elem()
237 	if (copy_from_user(value, uvalue, map->value_size) != 0)  in map_update_elem()
244 	err = map->ops->map_update_elem(map, key, value, attr->flags);  in map_update_elem()
263 	struct bpf_map *map;  in map_delete_elem()  local
270 	map = bpf_map_get(f);  in map_delete_elem()
271 	if (IS_ERR(map))  in map_delete_elem()
272 		return PTR_ERR(map);  in map_delete_elem()
275 	key = kmalloc(map->key_size, GFP_USER);  in map_delete_elem()
280 	if (copy_from_user(key, ukey, map->key_size) != 0)  in map_delete_elem()
284 	err = map->ops->map_delete_elem(map, key);  in map_delete_elem()
303 	struct bpf_map *map;  in map_get_next_key()  local
310 	map = bpf_map_get(f);  in map_get_next_key()
311 	if (IS_ERR(map))  in map_get_next_key()
312 		return PTR_ERR(map);  in map_get_next_key()
315 	key = kmalloc(map->key_size, GFP_USER);  in map_get_next_key()
320 	if (copy_from_user(key, ukey, map->key_size) != 0)  in map_get_next_key()
324 	next_key = kmalloc(map->key_size, GFP_USER);  in map_get_next_key()
329 	err = map->ops->map_get_next_key(map, key, next_key);  in map_get_next_key()
335 	if (copy_to_user(unext_key, next_key, map->key_size) != 0)  in map_get_next_key()