osc/sm: use an unsigned long when calculating the total segment size

Brad correctly pointed out that the total window size should not be an
int. Changed it to an unsigned long.

cmr=v1.8.2:reviewer=bbenton

This commit was SVN r32010.

ompi/mca/osc/sm/osc_sm_component.c

@@ -203,9 +203,9 @@ component_select(struct ompi_win_t *win, void **base, size_t size, int disp_unit
         if (NULL == module->node_states) return OMPI_ERR_TEMP_OUT_OF_RESOURCE;
 
     } else {
+        unsigned long total, *rbuf;
         char *data_file;
-        int *rbuf;
-        int total, i, flag;
+        int i, flag;
         size_t pagesize;
 	size_t state_size;
 
@@ -218,7 +218,7 @@ component_select(struct ompi_win_t *win, void **base, size_t size, int disp_unit
         pagesize = 4096;
 #endif
 
-        rbuf = malloc(sizeof(int) * ompi_comm_size(module->comm));
+        rbuf = malloc(sizeof(unsigned long) * ompi_comm_size(module->comm));
         if (NULL == rbuf) return OMPI_ERR_TEMP_OUT_OF_RESOURCE;
 
         module->noncontig = false;
@@ -232,8 +232,8 @@ component_select(struct ompi_win_t *win, void **base, size_t size, int disp_unit
         } else {
             total = size;
         }
-        ret = module->comm->c_coll.coll_allgather(&total, 1, MPI_INT,
-                                                  rbuf, 1, MPI_INT,
+        ret = module->comm->c_coll.coll_allgather(&total, 1, MPI_UNSIGNED_LONG,
+                                                  rbuf, 1, MPI_UNSIGNED_LONG,
                                                   module->comm,
                                                   module->comm->c_coll.coll_allgather_module);
         if (OMPI_SUCCESS != ret) return ret;