ceph: messenger: reset connection kvec caller

Reset a connection's kvec fields in the caller rather than in
prepare_write_connect().   This ends up repeating a few lines of
code but it's improving the separation between distinct operations
on the connection, which we can take advantage of later.

Signed-off-by: Alex Elder <elder@inktank.com>
Reviewed-by: Sage Weil <sage@inktank.com>

diff --git a/net/ceph/messenger.c b/net/ceph/messenger.c
index bcbd409b5ca75e42fa15cbaefe66f399c6c52560..cca3cf341d70b4ed51c571c71674e4c89baba6c4 100644 (file)
--- a/net/ceph/messenger.c
+++ b/net/ceph/messenger.c
@@ -725,7 +725,6 @@ static int prepare_write_connect(struct ceph_messenger *msgr,
        con->out_connect.protocol_version = cpu_to_le32(proto);
        con->out_connect.flags = 0;
 
-       ceph_con_out_kvec_reset(con);
        if (include_banner)
                prepare_write_banner(msgr, con);
        ceph_con_out_kvec_add(con, sizeof (con->out_connect), &con->out_connect);
@@ -1389,6 +1388,7 @@ static int process_connect(struct ceph_connection *con)
                        return -1;
                }
                con->auth_retry = 1;
+               ceph_con_out_kvec_reset(con);
                ret = prepare_write_connect(con->msgr, con, 0);
                if (ret < 0)
                        return ret;
@@ -1409,6 +1409,7 @@ static int process_connect(struct ceph_connection *con)
                       ENTITY_NAME(con->peer_name),
                       ceph_pr_addr(&con->peer_addr.in_addr));
                reset_connection(con);
+               ceph_con_out_kvec_reset(con);
                prepare_write_connect(con->msgr, con, 0);
                prepare_read_connect(con);
 
@@ -1432,6 +1433,7 @@ static int process_connect(struct ceph_connection *con)
                     le32_to_cpu(con->out_connect.connect_seq),
                     le32_to_cpu(con->in_connect.connect_seq));
                con->connect_seq = le32_to_cpu(con->in_connect.connect_seq);
+               ceph_con_out_kvec_reset(con);
                prepare_write_connect(con->msgr, con, 0);
                prepare_read_connect(con);
                break;
@@ -1446,6 +1448,7 @@ static int process_connect(struct ceph_connection *con)
                     le32_to_cpu(con->in_connect.global_seq));
                get_global_seq(con->msgr,
                               le32_to_cpu(con->in_connect.global_seq));
+               ceph_con_out_kvec_reset(con);
                prepare_write_connect(con->msgr, con, 0);
                prepare_read_connect(con);
                break;
@@ -1851,6 +1854,7 @@ more:
 
        /* open the socket first? */
        if (con->sock == NULL) {
+               ceph_con_out_kvec_reset(con);
                prepare_write_connect(msgr, con, 1);
                prepare_read_banner(con);
                set_bit(CONNECTING, &con->state);