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RDS: TCP: Retransmit half-sent datagrams when switching sockets in rds_tcp_reset_callbacks

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When we switch a connection's sockets in rds_tcp_rest_callbacks,
any partially sent datagram must be retransmitted on the new
socket so that the receiver can correctly reassmble the RDS
datagram. Use rds_send_reset() which is designed for this purpose.

Signed-off-by: Sowmini Varadhan <sowmini.varadhan@oracle.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Sowmini Varadhan 2016-06-04 13:59:59 -07:00 committed by David S. Miller
parent 335b48d980
commit 0b6f760cff
2 changed files with 2 additions and 0 deletions
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1
net/rds/send.c
View file

@ -99,6 +99,7 @@ void rds_send_reset(struct rds_connection *conn)
list_splice_init(&conn->c_retrans, &conn->c_send_queue);
spin_unlock_irqrestore(&conn->c_lock, flags);
}
EXPORT_SYMBOL_GPL(rds_send_reset);
static int acquire_in_xmit(struct rds_connection *conn)
{

1
net/rds/tcp.c
View file

@ -173,6 +173,7 @@ void rds_tcp_reset_callbacks(struct socket *sock,
release_sock(osock->sk);
sock_release(osock);
newsock:
rds_send_reset(conn);
lock_sock(sock->sk);
write_lock_bh(&sock->sk->sk_callback_lock);
tc->t_sock = sock;