Refactor smsc/xpmem reg cache to use find() instead of iterate()

Signed-off-by: George Katevenis <gkatev@ics.forth.gr>

Author: gkatev

opal/mca/smsc/xpmem/smsc_xpmem_component.c

@@ -1,6 +1,8 @@
 /* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil -*- */
 /*
  * Copyright (c) 2021      Google, Inc. All rights reserved.
+ * Copyright (c) 2022      Computer Architecture and VLSI Systems (CARV)
+ *                         Laboratory, ICS Forth. All rights reserved.
  * $COPYRIGHT$
  *
  * Additional copyrights may follow
@@ -76,10 +78,7 @@ static int mca_smsc_xpmem_component_open(void)
 
 static int mca_smsc_xpmem_component_close(void)
 {
-    if (mca_smsc_xpmem_module.vma_module) {
-        OBJ_RELEASE(mca_smsc_xpmem_module.vma_module);
-    }
-
+    /* nothing to do */
     return OPAL_SUCCESS;
 }
 
@@ -161,7 +160,5 @@ static mca_smsc_module_t *mca_smsc_xpmem_component_enable(void)
     mca_smsc_xpmem_component.log_attach_align
         = opal_min(opal_max(mca_smsc_xpmem_component.log_attach_align, 12), 25);
 
-    mca_smsc_xpmem_module.vma_module = mca_rcache_base_vma_module_alloc();
-
     return &mca_smsc_xpmem_module.super;
 }

opal/mca/smsc/xpmem/smsc_xpmem_internal.h

@@ -1,6 +1,8 @@
 /* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil -*- */
 /*
  * Copyright (c) 2021      Google, Inc. All rights reserved.
+ * Copyright (c) 2022      Computer Architecture and VLSI Systems (CARV)
+ *                         Laboratory, ICS Forth. All rights reserved.
  * $COPYRIGHT$
  *
  * Additional copyrights may follow
@@ -42,6 +44,8 @@ struct mca_smsc_xpmem_endpoint_t {
     xpmem_apid_t apid;
     /** maximum address we can attach to on this peer */
     uintptr_t address_max;
+    /** cache of xpmem attachments created using this endpoint */
+    mca_rcache_base_vma_module_t *vma_module;
 };
 
 typedef struct mca_smsc_xpmem_endpoint_t mca_smsc_xpmem_endpoint_t;
@@ -67,10 +71,6 @@ typedef struct mca_smsc_xpmem_component_t mca_smsc_xpmem_component_t;
 
 struct mca_smsc_xpmem_module_t {
     mca_smsc_module_t super;
-
-    /** cache of xpmem attachments. this cache holds attachments for all peers. the registrations
-     * are differentiated by the alloc_base which is set to the endpoint. */
-    mca_rcache_base_vma_module_t *vma_module;
 };
 
 typedef struct mca_smsc_xpmem_module_t mca_smsc_xpmem_module_t;