The sizes of mca_pml_ob1_send_request_t and mca_pml_ob1_recv_request_t depend

on a parameter and are determined in runtime. r15346 removed calculation of
correct sizes for this structures. This patch adds it back and fixes trac:1116, #1114.

This commit was SVN r15932.

The following SVN revision numbers were found above:
  r15346 --> open-mpi/ompi@433f8a7694

The following Trac tickets were found above:
  Ticket 1116 --> https://svn.open-mpi.org/trac/ompi/ticket/1116

ompi/mca/pml/ob1/pml_ob1.c

@@ -132,7 +132,9 @@ int mca_pml_ob1_enable(bool enable)
      * initialize them with the size of our own requests.
      */
     ompi_free_list_init( &mca_pml_base_send_requests,
-                         sizeof(mca_pml_ob1_send_request_t),
+                         sizeof(mca_pml_ob1_send_request_t) +
+                         (mca_pml_ob1.max_rdma_per_request - 1) *
+                         sizeof(mca_pml_ob1_com_btl_t),
                          OBJ_CLASS(mca_pml_ob1_send_request_t),
                          mca_pml_ob1.free_list_num,
                          mca_pml_ob1.free_list_max,
@@ -140,7 +142,9 @@ int mca_pml_ob1_enable(bool enable)
                          NULL );
 
     ompi_free_list_init( &mca_pml_base_recv_requests,
-                         sizeof(mca_pml_ob1_recv_request_t),
+                         sizeof(mca_pml_ob1_recv_request_t) +
+                         (mca_pml_ob1.max_rdma_per_request - 1) *
+                         sizeof(mca_pml_ob1_com_btl_t),
                          OBJ_CLASS(mca_pml_ob1_recv_request_t),
                          mca_pml_ob1.free_list_num,
                          mca_pml_ob1.free_list_max,