rds: remove unused rds_send_acked_before()

rds_send_acked_before() wasn't blocking interrupts when acquiring c_lock from
user context but nothing calls it.  Rather than fix its use of c_lock we just
remove the function.

Signed-off-by: Zach Brown <zach.brown@oracle.com>

diff --git a/net/rds/rds.h b/net/rds/rds.h
index cba5f8b..270ded7 100644 (file)
--- a/net/rds/rds.h
+++ b/net/rds/rds.h
@@ -724,7 +724,6 @@ void rds_send_drop_to(struct rds_sock *rs, struct sockaddr_in *dest);
 typedef int (*is_acked_func)(struct rds_message *rm, uint64_t ack);
 void rds_send_drop_acked(struct rds_connection *conn, u64 ack,
                         is_acked_func is_acked);
-int rds_send_acked_before(struct rds_connection *conn, u64 seq);
 void rds_send_remove_from_sock(struct list_head *messages, int status);
 int rds_send_pong(struct rds_connection *conn, __be16 dport);
 struct rds_message *rds_send_get_message(struct rds_connection *,

diff --git a/net/rds/send.c b/net/rds/send.c
index a629599..b9e41af 100644 (file)
--- a/net/rds/send.c
+++ b/net/rds/send.c
@@ -404,35 +404,6 @@ static inline int rds_send_is_acked(struct rds_message *rm, u64 ack,
        return be64_to_cpu(rm->m_inc.i_hdr.h_sequence) <= ack;
 }
 
-/*
- * Returns true if there are no messages on the send and retransmit queues
- * which have a sequence number greater than or equal to the given sequence
- * number.
- */
-int rds_send_acked_before(struct rds_connection *conn, u64 seq)
-{
-       struct rds_message *rm, *tmp;
-       int ret = 1;
-
-       spin_lock(&conn->c_lock);
-
-       list_for_each_entry_safe(rm, tmp, &conn->c_retrans, m_conn_item) {
-               if (be64_to_cpu(rm->m_inc.i_hdr.h_sequence) < seq)
-                       ret = 0;
-               break;
-       }
-
-       list_for_each_entry_safe(rm, tmp, &conn->c_send_queue, m_conn_item) {
-               if (be64_to_cpu(rm->m_inc.i_hdr.h_sequence) < seq)
-                       ret = 0;
-               break;
-       }
-
-       spin_unlock(&conn->c_lock);
-
-       return ret;
-}
-
 /*
  * This is pretty similar to what happens below in the ACK
  * handling code - except that we call here as soon as we get