352 struct sock {  struct
357 	struct sock_common	__sk_common;  argument
392 	socket_lock_t		sk_lock;  argument
400 	 * the per-socket spinlock held and requires low latency  argument
424 		struct socket_wq __rcu	*sk_wq;  argument
430 	struct xfrm_policy __rcu *sk_policy[2];
432 	struct dst_entry __rcu	*sk_rx_dst;
433 	struct dst_entry __rcu	*sk_dst_cache;
434 	atomic_t		sk_omem_alloc;
435 	int			sk_sndbuf;
438 	int			sk_wmem_queued;
439 	refcount_t		sk_wmem_alloc;
440 	unsigned long		sk_tsq_flags;
441 	union {
468 	 * changes are protected by socket lock.  argument
471 				sk_kern_sock : 1,  argument
472 				sk_no_check_tx : 1,
473 				sk_no_check_rx : 1,
474 				sk_userlocks : 4;
475 	u8			sk_pacing_shift;
476 	u16			sk_type;
477 	u16			sk_protocol;
478 	u16			sk_gso_max_segs;
479 	unsigned long	        sk_lingertime;
480 	struct proto		*sk_prot_creator;
481 	rwlock_t		sk_callback_lock;
482 	int			sk_err,
506 	struct socket		*sk_socket;  argument
511 	struct sock_cgroup_data	sk_cgrp_data;  argument
513 	void			(*sk_state_change)(struct sock *sk);  argument
514 	void			(*sk_data_ready)(struct sock *sk);  argument
515 	void			(*sk_write_space)(struct sock *sk);  argument
516 	void			(*sk_error_report)(struct sock *sk);  argument
517 	int			(*sk_backlog_rcv)(struct sock *sk,  argument
520 	struct sk_buff*		(*sk_validate_xmit_skb)(struct sock *sk,  argument
524 	void                    (*sk_destruct)(struct sock *sk);  argument
525 	struct sock_reuseport __rcu	*sk_reuseport_cb;  argument
541  *   not be suitable for copying when cloning the socket. For instance,  argument
1892 static inline void sk_set_socket(struct sock *sk, struct socket *sock)  in sk_set_socket()
2204 static inline void sock_poll_wait(struct file *filp, struct socket *sock,  in sock_poll_wait()