inner_map_ufd 9 kernel/bpf/map_in_map.c struct bpf_map *bpf_map_meta_alloc(int inner_map_ufd) inner_map_ufd 15 kernel/bpf/map_in_map.c f = fdget(inner_map_ufd); inner_map_ufd 12 kernel/bpf/map_in_map.h struct bpf_map *bpf_map_meta_alloc(int inner_map_ufd);