osc/rdma: fix 32-bit builds

Signed-off-by: Nathan Hjelm <[email protected]>

Author: hjelmn

ompi/mca/osc/rdma/osc_rdma_frag.h

@@ -23,7 +23,11 @@ static inline void ompi_osc_rdma_frag_complete (ompi_osc_rdma_frag_t *frag)
         opal_atomic_rmb ();
 
         (void) opal_atomic_swap_32 (&frag->pending, 1);
+#if OPAL_HAVE_ATOMIC_MATH_64
         (void) opal_atomic_swap_64 (&frag->curr_index, 0);
+#else
+        (void) opal_atomic_swap_32 (&frag->curr_index, 0);
+#endif
     }
 }
 
@@ -81,7 +85,11 @@ static inline int ompi_osc_rdma_frag_alloc (ompi_osc_rdma_module_t *module, size
     OSC_RDMA_VERBOSE(MCA_BASE_VERBOSE_INFO, "allocating frag. pending = %d", curr->pending);
     OPAL_THREAD_ADD_FETCH32(&curr->pending, 1);
 
+#if OPAL_HAVE_ATOMIC_MATH_64
     my_index = opal_atomic_fetch_add_64 (&curr->curr_index, request_len);
+#else
+    my_index = opal_atomic_fetch_add_32 (&curr->curr_index, request_len);
+#endif
     if (my_index + request_len > mca_osc_rdma_component.buffer_size) {
         if (my_index <= mca_osc_rdma_component.buffer_size) {
             /* this thread caused the buffer to spill over */

ompi/mca/osc/rdma/osc_rdma_types.h

@@ -229,7 +229,11 @@ struct ompi_osc_rdma_frag_t {
 
     /* Number of operations which have started writing into the frag, but not yet completed doing so */
     volatile int32_t pending;
+#if OPAL_HAVE_ATOMIC_MATH_64
     volatile int64_t curr_index;
+#else
+    volatile int32_t curr_index;
+#endif
 
     struct ompi_osc_rdma_module_t *module;
     mca_btl_base_registration_handle_t *handle;