812 struct proto {  struct
813 	void			(*close)(struct sock *sk, 
815 	int			(*connect)(struct sock *sk,
818 	int			(*disconnect)(struct sock *sk, int flags);
820 	struct sock *		(*accept) (struct sock *sk, int flags, int *err);
822 	int			(*ioctl)(struct sock *sk, int cmd,
824 	int			(*init)(struct sock *sk);
825 	void			(*destroy)(struct sock *sk);
826 	void			(*shutdown)(struct sock *sk, int how);
827 	int			(*setsockopt)(struct sock *sk, int level, 
830 	int			(*getsockopt)(struct sock *sk, int level, 
834 	int			(*compat_setsockopt)(struct sock *sk,
838 	int			(*compat_getsockopt)(struct sock *sk,
842 	int			(*compat_ioctl)(struct sock *sk,
845 	int			(*sendmsg)(struct kiocb *iocb, struct sock *sk,
847 	int			(*recvmsg)(struct kiocb *iocb, struct sock *sk,
851 	int			(*sendpage)(struct sock *sk, struct page *page,
853 	int			(*bind)(struct sock *sk, 
856 	int			(*backlog_rcv) (struct sock *sk, 
860 	void			(*hash)(struct sock *sk);
861 	void			(*unhash)(struct sock *sk);
862 	void			(*rehash)(struct sock *sk);
863 	int			(*get_port)(struct sock *sk, unsigned short snum);
864 	void			(*clear_sk)(struct sock *sk, int size);
868 	unsigned int		inuse_idx;
872 	void			(*enter_memory_pressure)(struct sock *sk);
873 	atomic_long_t		*memory_allocated;	/* Current allocated memory. */
874 	struct percpu_counter	*sockets_allocated;	/* Current number of sockets. */
881 	int			*memory_pressure;
882 	long			*sysctl_mem;
883 	int			*sysctl_wmem;
884 	int			*sysctl_rmem;
885 	int			max_header;
886 	bool			no_autobind;
888 	struct kmem_cache	*slab;
889 	unsigned int		obj_size;
890 	int			slab_flags;
914 	 * protocols that implement it, from cgroups populate function.  argument
921 	struct cg_proto		*(*proto_cgroup)(struct mem_cgroup *memcg);  argument
937 	 * proto_cgroup in struct proto, but that means polluting the structure  argument
973 static inline struct cg_proto *parent_cg_proto(struct proto *proto,  in parent_cg_proto()
981 static inline struct cg_proto *parent_cg_proto(struct proto *proto,  in parent_cg_proto()