248 	struct socket_wq *wq;  in sock_alloc_inode()  local
253 	wq = kmalloc(sizeof(*wq), GFP_KERNEL);  in sock_alloc_inode()
254 	if (!wq) {  in sock_alloc_inode()
258 	init_waitqueue_head(&wq->wait);  in sock_alloc_inode()
259 	wq->fasync_list = NULL;  in sock_alloc_inode()
260 	wq->flags = 0;  in sock_alloc_inode()
261 	RCU_INIT_POINTER(ei->socket.wq, wq);  in sock_alloc_inode()
275 	struct socket_wq *wq;  in sock_destroy_inode()  local
278 	wq = rcu_dereference_protected(ei->socket.wq, 1);  in sock_destroy_inode()
279 	kfree_rcu(wq, rcu);  in sock_destroy_inode()
604 	if (rcu_dereference_protected(sock->wq, 1)->fasync_list)  in sock_release()
1065 	struct socket_wq *wq;  in sock_fasync()  local
1071 	wq = rcu_dereference_protected(sock->wq, lockdep_sock_is_held(sk));  in sock_fasync()
1072 	fasync_helper(fd, filp, on, &wq->fasync_list);  in sock_fasync()
1074 	if (!wq->fasync_list)  in sock_fasync()
1085 int sock_wake_async(struct socket_wq *wq, int how, int band)  in sock_wake_async()  argument
1087 	if (!wq || !wq->fasync_list)  in sock_wake_async()
1092 		if (test_bit(SOCKWQ_ASYNC_WAITDATA, &wq->flags))  in sock_wake_async()
1096 		if (!test_and_clear_bit(SOCKWQ_ASYNC_NOSPACE, &wq->flags))  in sock_wake_async()
1101 		kill_fasync(&wq->fasync_list, SIGIO, band);  in sock_wake_async()
1104 		kill_fasync(&wq->fasync_list, SIGURG, band);  in sock_wake_async()