dlm: bind connections from known local address when using TCP

[safe/jmp/linux-2.6] / fs / dlm / lowcomms.c

diff --git a/fs/dlm/lowcomms.c b/fs/dlm/lowcomms.c
index e9923ca..5772844 100644 (file)
--- a/fs/dlm/lowcomms.c
+++ b/fs/dlm/lowcomms.c
@@ -864,7 +864,7 @@ static void sctp_init_assoc(struct connection *con)
 static void tcp_connect_to_sock(struct connection *con)
 {
        int result = -EHOSTUNREACH;
-       struct sockaddr_storage saddr;
+       struct sockaddr_storage saddr, src_addr;
        int addr_len;
        struct socket *sock;
 
@@ -898,6 +898,17 @@ static void tcp_connect_to_sock(struct connection *con)
        con->connect_action = tcp_connect_to_sock;
        add_sock(sock, con);
 
+       /* Bind to our cluster-known address connecting to avoid
+          routing problems */
+       memcpy(&src_addr, dlm_local_addr[0], sizeof(src_addr));
+       make_sockaddr(&src_addr, 0, &addr_len);
+       result = sock->ops->bind(sock, (struct sockaddr *) &src_addr,
+                                addr_len);
+       if (result < 0) {
+               log_print("could not bind for connect: %d", result);
+               /* This *may* not indicate a critical error */
+       }
+
        make_sockaddr(&saddr, dlm_config.ci_tcp_port, &addr_len);
 
        log_print("connecting to %d", con->nodeid);