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authorSowmini Varadhan <sowmini.varadhan@oracle.com>2017-06-15 21:28:53 +0300
committerDavid S. Miller <davem@davemloft.net>2017-06-16 19:45:14 +0300
commit41500c3e2a19ffcf40a7158fce1774de08e26ba2 (patch)
tree723682c0d034d68674f943d70e83632a28c71ad7 /net/rds
parent5f886eefbb2d4b207c43b96bbe951545be4f462d (diff)
downloadlinux-41500c3e2a19ffcf40a7158fce1774de08e26ba2.tar.xz
rds: tcp: remove cp_outgoing
After commit 1a0e100fb2c9 ("RDS: TCP: Force every connection to be initiated by numerically smaller IP address") we no longer need the logic associated with cp_outgoing, so clean up usage of this field. Signed-off-by: Sowmini Varadhan <sowmini.varadhan@oracle.com> Tested-by: Imanti Mendez <imanti.mendez@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/rds')
-rw-r--r--net/rds/connection.c5
-rw-r--r--net/rds/rds.h2
-rw-r--r--net/rds/tcp_connect.c1
-rw-r--r--net/rds/tcp_listen.c19
4 files changed, 4 insertions, 23 deletions
diff --git a/net/rds/connection.c b/net/rds/connection.c
index 6a5ebdea7d2e..382443b060cb 100644
--- a/net/rds/connection.c
+++ b/net/rds/connection.c
@@ -124,11 +124,6 @@ static void __rds_conn_path_init(struct rds_connection *conn,
cp->cp_conn = conn;
atomic_set(&cp->cp_state, RDS_CONN_DOWN);
cp->cp_send_gen = 0;
- /* cp_outgoing is per-path. So we can only set it here
- * for the single-path transports.
- */
- if (!conn->c_trans->t_mp_capable)
- cp->cp_outgoing = (is_outgoing ? 1 : 0);
cp->cp_reconnect_jiffies = 0;
INIT_DELAYED_WORK(&cp->cp_send_w, rds_send_worker);
INIT_DELAYED_WORK(&cp->cp_recv_w, rds_recv_worker);
diff --git a/net/rds/rds.h b/net/rds/rds.h
index 82d38ccf5e8b..aa183d6adbcc 100644
--- a/net/rds/rds.h
+++ b/net/rds/rds.h
@@ -125,8 +125,6 @@ struct rds_conn_path {
unsigned int cp_unacked_packets;
unsigned int cp_unacked_bytes;
- unsigned int cp_outgoing:1,
- cp_pad_to_32:31;
unsigned int cp_index;
};
diff --git a/net/rds/tcp_connect.c b/net/rds/tcp_connect.c
index d6839d96d539..97db86101ac5 100644
--- a/net/rds/tcp_connect.c
+++ b/net/rds/tcp_connect.c
@@ -135,7 +135,6 @@ int rds_tcp_conn_path_connect(struct rds_conn_path *cp)
ret = sock->ops->connect(sock, (struct sockaddr *)&dest, sizeof(dest),
O_NONBLOCK);
- cp->cp_outgoing = 1;
rdsdebug("connect to address %pI4 returned %d\n", &conn->c_faddr, ret);
if (ret == -EINPROGRESS)
ret = 0;
diff --git a/net/rds/tcp_listen.c b/net/rds/tcp_listen.c
index 507678853e6c..238ff5c9a75b 100644
--- a/net/rds/tcp_listen.c
+++ b/net/rds/tcp_listen.c
@@ -171,21 +171,10 @@ int rds_tcp_accept_one(struct socket *sock)
if (conn_state != RDS_CONN_CONNECTING && conn_state != RDS_CONN_ERROR)
goto rst_nsk;
if (rs_tcp->t_sock) {
- /* Need to resolve a duelling SYN between peers.
- * We have an outstanding SYN to this peer, which may
- * potentially have transitioned to the RDS_CONN_UP state,
- * so we must quiesce any send threads before resetting
- * c_transport_data.
- */
- if (ntohl(inet->inet_saddr) < ntohl(inet->inet_daddr) ||
- !cp->cp_outgoing) {
- goto rst_nsk;
- } else {
- rds_tcp_reset_callbacks(new_sock, cp);
- cp->cp_outgoing = 0;
- /* rds_connect_path_complete() marks RDS_CONN_UP */
- rds_connect_path_complete(cp, RDS_CONN_RESETTING);
- }
+ /* Duelling SYN has been handled in rds_tcp_accept_one() */
+ rds_tcp_reset_callbacks(new_sock, cp);
+ /* rds_connect_path_complete() marks RDS_CONN_UP */
+ rds_connect_path_complete(cp, RDS_CONN_RESETTING);
} else {
rds_tcp_set_callbacks(new_sock, cp);
rds_connect_path_complete(cp, RDS_CONN_CONNECTING);