diff options
Diffstat (limited to 'net/ipv4/tcp.c')
| -rw-r--r-- | net/ipv4/tcp.c | 43 |
1 files changed, 4 insertions, 39 deletions
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index d56edc2c885f..e03e08745308 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -923,11 +923,10 @@ int tcp_send_mss(struct sock *sk, int *size_goal, int flags) return mss_now; } -/* In some cases, both sendpage() and sendmsg() could have added - * an skb to the write queue, but failed adding payload on it. - * We need to remove it to consume less memory, but more - * importantly be able to generate EPOLLOUT for Edge Trigger epoll() - * users. +/* In some cases, both sendmsg() could have added an skb to the write queue, + * but failed adding payload on it. We need to remove it to consume less + * memory, but more importantly be able to generate EPOLLOUT for Edge Trigger + * epoll() users. */ void tcp_remove_empty_skb(struct sock *sk) { @@ -975,40 +974,6 @@ int tcp_wmem_schedule(struct sock *sk, int copy) return min(copy, sk->sk_forward_alloc); } -int tcp_sendpage_locked(struct sock *sk, struct page *page, int offset, - size_t size, int flags) -{ - struct bio_vec bvec; - struct msghdr msg = { .msg_flags = flags | MSG_SPLICE_PAGES, }; - - if (!(sk->sk_route_caps & NETIF_F_SG)) - return sock_no_sendpage_locked(sk, page, offset, size, flags); - - tcp_rate_check_app_limited(sk); /* is sending application-limited? */ - - bvec_set_page(&bvec, page, size, offset); - iov_iter_bvec(&msg.msg_iter, ITER_SOURCE, &bvec, 1, size); - - if (flags & MSG_SENDPAGE_NOTLAST) - msg.msg_flags |= MSG_MORE; - - return tcp_sendmsg_locked(sk, &msg, size); -} -EXPORT_SYMBOL_GPL(tcp_sendpage_locked); - -int tcp_sendpage(struct sock *sk, struct page *page, int offset, - size_t size, int flags) -{ - int ret; - - lock_sock(sk); - ret = tcp_sendpage_locked(sk, page, offset, size, flags); - release_sock(sk); - - return ret; -} -EXPORT_SYMBOL(tcp_sendpage); - void tcp_free_fastopen_req(struct tcp_sock *tp) { if (tp->fastopen_req) { |