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Commit e3b5616a authored by Dave Watson's avatar Dave Watson Committed by David S. Miller
Browse files

tcp: export do_tcp_sendpages and tcp_rate_check_app_limited functions 



Export do_tcp_sendpages and tcp_rate_check_app_limited, since tls will need to
sendpages while the socket is already locked.

tcp_sendpage is exported, but requires the socket lock to not be held already.

Signed-off-by: default avatarAviad Yehezkel <aviadye@mellanox.com>
Signed-off-by: default avatarIlya Lesokhin <ilyal@mellanox.com>
Signed-off-by: default avatarBoris Pismenny <borisp@mellanox.com>
Signed-off-by: default avatarDave Watson <davejwatson@fb.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 734942cc

include/net/tcp.h

+2 −0
Original line number Diff line number Diff line
@@ -350,6 +350,8 @@ int tcp_v4_tw_remember_stamp(struct inet_timewait_sock *tw); 
int tcp_sendmsg(struct sock *sk, struct msghdr *msg, size_t size);

int tcp_sendpage(struct sock *sk, struct page *page, int offset, size_t size,

		 int flags);

ssize_t do_tcp_sendpages(struct sock *sk, struct page *page, int offset,

		 size_t size, int flags);

void tcp_release_cb(struct sock *sk);

void tcp_wfree(struct sk_buff *skb);

void tcp_write_timer_handler(struct sock *sk);

net/ipv4/tcp.c

+3 −2
Original line number Diff line number Diff line
@@ -901,7 +901,7 @@ static int tcp_send_mss(struct sock *sk, int *size_goal, int flags) 
	return mss_now;

}



static ssize_t do_tcp_sendpages(struct sock *sk, struct page *page, int offset,

ssize_t do_tcp_sendpages(struct sock *sk, struct page *page, int offset,

			 size_t size, int flags)

{

	struct tcp_sock *tp = tcp_sk(sk);
@@ -1032,6 +1032,7 @@ static ssize_t do_tcp_sendpages(struct sock *sk, struct page *page, int offset, 
	}

	return sk_stream_error(sk, flags, err);

}

EXPORT_SYMBOL_GPL(do_tcp_sendpages);



int tcp_sendpage(struct sock *sk, struct page *page, int offset,

		 size_t size, int flags)

net/ipv4/tcp_rate.c

+1 −0
Original line number Diff line number Diff line
@@ -185,3 +185,4 @@ void tcp_rate_check_app_limited(struct sock *sk) 
		tp->app_limited =

			(tp->delivered + tcp_packets_in_flight(tp)) ? : 1;

}

EXPORT_SYMBOL_GPL(tcp_rate_check_app_limited);