提交 8315011a 编写于 作者: S Sowmini Varadhan 提交者: David S. Miller

RDS: TCP: Simplify reconnect to avoid duelling reconnnect attempts

When reconnecting, the peer with the smaller IP address will initiate
the reconnect, to avoid needless duelling SYN issues.
Acked-by: NSantosh Shilimkar <santosh.shilimkar@oracle.com>
Signed-off-by: NSowmini Varadhan <sowmini.varadhan@oracle.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
上级 b04e8554
......@@ -355,9 +355,7 @@ void rds_conn_shutdown(struct rds_conn_path *cp)
rcu_read_lock();
if (!hlist_unhashed(&conn->c_hash_node)) {
rcu_read_unlock();
if (conn->c_trans->t_type != RDS_TRANS_TCP ||
cp->cp_outgoing == 1)
rds_queue_reconnect(cp);
rds_queue_reconnect(cp);
} else {
rcu_read_unlock();
}
......
......@@ -125,6 +125,11 @@ void rds_queue_reconnect(struct rds_conn_path *cp)
conn, &conn->c_laddr, &conn->c_faddr,
cp->cp_reconnect_jiffies);
/* let peer with smaller addr initiate reconnect, to avoid duels */
if (conn->c_trans->t_type == RDS_TRANS_TCP &&
conn->c_laddr > conn->c_faddr)
return;
set_bit(RDS_RECONNECT_PENDING, &cp->cp_flags);
if (cp->cp_reconnect_jiffies == 0) {
cp->cp_reconnect_jiffies = rds_sysctl_reconnect_min_jiffies;
......
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