120 	if (sock->sk) {  in af_alg_release()
121 		sock_put(sock->sk);  in af_alg_release()
122 		sock->sk = NULL;  in af_alg_release()
128 void af_alg_release_parent(struct sock *sk)  in af_alg_release_parent()  argument
130 	struct alg_sock *ask = alg_sk(sk);  in af_alg_release_parent()
134 	sk = ask->parent;  in af_alg_release_parent()
135 	ask = alg_sk(sk);  in af_alg_release_parent()
138 	bh_lock_sock(sk);  in af_alg_release_parent()
142 	bh_unlock_sock(sk);  in af_alg_release_parent()
146 		sock_put(sk);  in af_alg_release_parent()
153 	struct sock *sk = sock->sk;  in alg_bind()  local
154 	struct alg_sock *ask = alg_sk(sk);  in alg_bind()
189 	lock_sock(sk);  in alg_bind()
199 	release_sock(sk);  in alg_bind()
206 static int alg_setkey(struct sock *sk, char __user *ukey,  in alg_setkey()  argument
209 	struct alg_sock *ask = alg_sk(sk);  in alg_setkey()
214 	key = sock_kmalloc(sk, keylen, GFP_KERNEL);  in alg_setkey()
225 	sock_kzfree_s(sk, key, keylen);  in alg_setkey()
233 	struct sock *sk = sock->sk;  in alg_setsockopt()  local
234 	struct alg_sock *ask = alg_sk(sk);  in alg_setsockopt()
238 	lock_sock(sk);  in alg_setsockopt()
255 		err = alg_setkey(sk, optval, optlen);  in alg_setsockopt()
266 	release_sock(sk);  in alg_setsockopt()
271 int af_alg_accept(struct sock *sk, struct socket *newsock, bool kern)  in af_alg_accept()  argument
273 	struct alg_sock *ask = alg_sk(sk);  in af_alg_accept()
279 	lock_sock(sk);  in af_alg_accept()
286 	sk2 = sk_alloc(sock_net(sk), PF_ALG, GFP_KERNEL, &alg_proto, kern);  in af_alg_accept()
293 	security_sk_clone(sk, sk2);  in af_alg_accept()
305 		sock_hold(sk);  in af_alg_accept()
307 	alg_sk(sk2)->parent = sk;  in af_alg_accept()
320 	release_sock(sk);  in af_alg_accept()
329 	return af_alg_accept(sock->sk, newsock, kern);  in alg_accept()
354 static void alg_sock_destruct(struct sock *sk)  in alg_sock_destruct()  argument
356 	struct alg_sock *ask = alg_sk(sk);  in alg_sock_destruct()
364 	struct sock *sk;  in alg_create()  local
373 	sk = sk_alloc(net, PF_ALG, GFP_KERNEL, &alg_proto, kern);  in alg_create()
374 	if (!sk)  in alg_create()
378 	sock_init_data(sock, sk);  in alg_create()
380 	sk->sk_destruct = alg_sock_destruct;  in alg_create()
486 static int af_alg_alloc_tsgl(struct sock *sk)  in af_alg_alloc_tsgl()  argument
488 	struct alg_sock *ask = alg_sk(sk);  in af_alg_alloc_tsgl()
498 		sgl = sock_kmalloc(sk,  in af_alg_alloc_tsgl()
527 unsigned int af_alg_count_tsgl(struct sock *sk, size_t bytes, size_t offset)  in af_alg_count_tsgl()  argument
529 	const struct alg_sock *ask = alg_sk(sk);  in af_alg_count_tsgl()
583 void af_alg_pull_tsgl(struct sock *sk, size_t used, struct scatterlist *dst,  in af_alg_pull_tsgl()  argument
586 	struct alg_sock *ask = alg_sk(sk);  in af_alg_pull_tsgl()
637 		sock_kfree_s(sk, sgl, struct_size(sgl, sg, MAX_SGL_ENTS + 1));  in af_alg_pull_tsgl()
652 	struct sock *sk = areq->sk;  in af_alg_free_areq_sgls()  local
653 	struct alg_sock *ask = alg_sk(sk);  in af_alg_free_areq_sgls()
665 			sock_kfree_s(sk, rsgl, sizeof(*rsgl));  in af_alg_free_areq_sgls()
676 		sock_kfree_s(sk, tsgl, areq->tsgl_entries * sizeof(*tsgl));  in af_alg_free_areq_sgls()
687 static int af_alg_wait_for_wmem(struct sock *sk, unsigned int flags)  in af_alg_wait_for_wmem()  argument
696 	sk_set_bit(SOCKWQ_ASYNC_NOSPACE, sk);  in af_alg_wait_for_wmem()
698 	add_wait_queue(sk_sleep(sk), &wait);  in af_alg_wait_for_wmem()
703 		if (sk_wait_event(sk, &timeout, af_alg_writable(sk), &wait)) {  in af_alg_wait_for_wmem()
708 	remove_wait_queue(sk_sleep(sk), &wait);  in af_alg_wait_for_wmem()
718 void af_alg_wmem_wakeup(struct sock *sk)  in af_alg_wmem_wakeup()  argument
722 	if (!af_alg_writable(sk))  in af_alg_wmem_wakeup()
726 	wq = rcu_dereference(sk->sk_wq);  in af_alg_wmem_wakeup()
731 	sk_wake_async(sk, SOCK_WAKE_WAITD, POLL_IN);  in af_alg_wmem_wakeup()
743 int af_alg_wait_for_data(struct sock *sk, unsigned flags)  in af_alg_wait_for_data()  argument
746 	struct alg_sock *ask = alg_sk(sk);  in af_alg_wait_for_data()
754 	sk_set_bit(SOCKWQ_ASYNC_WAITDATA, sk);  in af_alg_wait_for_data()
756 	add_wait_queue(sk_sleep(sk), &wait);  in af_alg_wait_for_data()
761 		if (sk_wait_event(sk, &timeout, (ctx->used || !ctx->more),  in af_alg_wait_for_data()
767 	remove_wait_queue(sk_sleep(sk), &wait);  in af_alg_wait_for_data()
769 	sk_clear_bit(SOCKWQ_ASYNC_WAITDATA, sk);  in af_alg_wait_for_data()
780 static void af_alg_data_wakeup(struct sock *sk)  in af_alg_data_wakeup()  argument
782 	struct alg_sock *ask = alg_sk(sk);  in af_alg_data_wakeup()
790 	wq = rcu_dereference(sk->sk_wq);  in af_alg_data_wakeup()
795 	sk_wake_async(sk, SOCK_WAKE_SPACE, POLL_OUT);  in af_alg_data_wakeup()
818 	struct sock *sk = sock->sk;  in af_alg_sendmsg()  local
819 	struct alg_sock *ask = alg_sk(sk);  in af_alg_sendmsg()
849 	lock_sock(sk);  in af_alg_sendmsg()
892 		if (!af_alg_writable(sk)) {  in af_alg_sendmsg()
893 			err = af_alg_wait_for_wmem(sk, msg->msg_flags);  in af_alg_sendmsg()
899 		len = min_t(unsigned long, len, af_alg_sndbuf(sk));  in af_alg_sendmsg()
901 		err = af_alg_alloc_tsgl(sk);  in af_alg_sendmsg()
949 	af_alg_data_wakeup(sk);  in af_alg_sendmsg()
950 	release_sock(sk);  in af_alg_sendmsg()
964 	struct sock *sk = sock->sk;  in af_alg_sendpage()  local
965 	struct alg_sock *ask = alg_sk(sk);  in af_alg_sendpage()
973 	lock_sock(sk);  in af_alg_sendpage()
980 	if (!af_alg_writable(sk)) {  in af_alg_sendpage()
981 		err = af_alg_wait_for_wmem(sk, flags);  in af_alg_sendpage()
986 	err = af_alg_alloc_tsgl(sk);  in af_alg_sendpage()
1007 	af_alg_data_wakeup(sk);  in af_alg_sendpage()
1008 	release_sock(sk);  in af_alg_sendpage()
1019 	struct sock *sk = areq->sk;  in af_alg_free_resources()  local
1022 	sock_kfree_s(sk, areq, areq->areqlen);  in af_alg_free_resources()
1038 	struct sock *sk = areq->sk;  in af_alg_async_cb()  local
1046 	sock_put(sk);  in af_alg_async_cb()
1058 	struct sock *sk = sock->sk;  in af_alg_poll()  local
1059 	struct alg_sock *ask = alg_sk(sk);  in af_alg_poll()
1069 	if (af_alg_writable(sk))  in af_alg_poll()
1083 struct af_alg_async_req *af_alg_alloc_areq(struct sock *sk,  in af_alg_alloc_areq()  argument
1086 	struct af_alg_async_req *areq = sock_kmalloc(sk, areqlen, GFP_KERNEL);  in af_alg_alloc_areq()
1092 	areq->sk = sk;  in af_alg_alloc_areq()
1114 int af_alg_get_rsgl(struct sock *sk, struct msghdr *msg, int flags,  in af_alg_get_rsgl()  argument
1118 	struct alg_sock *ask = alg_sk(sk);  in af_alg_get_rsgl()
1128 		if (!af_alg_readable(sk))  in af_alg_get_rsgl()
1137 			rsgl = sock_kmalloc(sk, sizeof(*rsgl), GFP_KERNEL);  in af_alg_get_rsgl()