bpf: Fix kabi breakage in struct bpf_map and struct bpf_map_ops

	 * the to-be-put element is still alive before the bpf program, which

	 * may manipulate it, exists.

	 */

	void (*map_fd_put_ptr)(struct bpf_map *map, void *ptr, bool need_defer);

	KABI_BROKEN_REPLACE(void (*map_fd_put_ptr)(void *ptr),

			    void (*map_fd_put_ptr)(struct bpf_map *map, void *ptr, bool need_defer))

	int (*map_gen_lookup)(struct bpf_map *map, struct bpf_insn *insn_buf);

	u32 (*map_fd_sys_lookup_elem)(void *ptr);

	void (*map_seq_show_elem)(struct bpf_map *map, void *key,

	u32 btf_vmlinux_value_type_id;

	bool bypass_spec_v1;

	bool frozen; /* write-once; write-protected by freeze_mutex */

	bool free_after_mult_rcu_gp;

	/* 22 bytes hole */

	KABI_EXTEND(bool free_after_mult_rcu_gp)

	/* 17 bytes hole */

	/* The 3rd and 4th cacheline with misc members to avoid false sharing

	 * particularly with refcounting.

	atomic64_t refcnt ____cacheline_aligned;

	atomic64_t usercnt;

	/* rcu is used before freeing and work is only used during freeing */

	KABI_BROKEN_REPLACE(

	struct work_struct work,

	union {

		struct work_struct work;

		struct rcu_head rcu;

	};

	})

	struct mutex freeze_mutex;

	atomic64_t writecnt;

};