| /* SPDX-License-Identifier: GPL-2.0-only */ | 
 | /* Copyright (c) 2017 Facebook | 
 |  */ | 
 | #ifndef __MAP_IN_MAP_H__ | 
 | #define __MAP_IN_MAP_H__ | 
 |  | 
 | #include <linux/types.h> | 
 |  | 
 | struct file; | 
 | struct bpf_map; | 
 |  | 
 | struct bpf_map *bpf_map_meta_alloc(int inner_map_ufd); | 
 | void bpf_map_meta_free(struct bpf_map *map_meta); | 
 | bool bpf_map_meta_equal(const struct bpf_map *meta0, | 
 | 			const struct bpf_map *meta1); | 
 | void *bpf_map_fd_get_ptr(struct bpf_map *map, struct file *map_file, | 
 | 			 int ufd); | 
 | void bpf_map_fd_put_ptr(struct bpf_map *map, void *ptr, bool need_defer); | 
 | u32 bpf_map_fd_sys_lookup_elem(void *ptr); | 
 |  | 
 | #endif |