migration: Create migrate_block_bitmap_mapping() function

Notice that we changed the test of ->has_block_bitmap_mapping
for the test that block_bitmap_mapping is not NULL.

Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>

---

Make it return const (vladimir)

1 files changed, 8 insertions, 6 deletions

diff --git a/migration/block-dirty-bitmap.c b/migration/block-dirty-bitmap.c
index a6ffae0002..6624f39bc6 100644
--- a/migration/block-dirty-bitmap.c
+++ b/migration/block-dirty-bitmap.c
@@ -605,11 +605,12 @@ static int init_dirty_bitmap_migration(DBMSaveState *s)
     SaveBitmapState *dbms;
     GHashTable *handled_by_blk = g_hash_table_new(NULL, NULL);
     BlockBackend *blk;
-    const MigrationParameters *mig_params = &migrate_get_current()->parameters;
     GHashTable *alias_map = NULL;
+    const BitmapMigrationNodeAliasList *block_bitmap_mapping =
+        migrate_block_bitmap_mapping();
 
-    if (mig_params->has_block_bitmap_mapping) {
-        alias_map = construct_alias_map(mig_params->block_bitmap_mapping, true,
+    if (block_bitmap_mapping) {
+        alias_map = construct_alias_map(block_bitmap_mapping, true,
                                         &error_abort);
     }
 
@@ -1158,7 +1159,8 @@ static int dirty_bitmap_load_header(QEMUFile *f, DBMLoadState *s,
 static int dirty_bitmap_load(QEMUFile *f, void *opaque, int version_id)
 {
     GHashTable *alias_map = NULL;
-    const MigrationParameters *mig_params = &migrate_get_current()->parameters;
+    const BitmapMigrationNodeAliasList *block_bitmap_mapping =
+        migrate_block_bitmap_mapping();
     DBMLoadState *s = &((DBMState *)opaque)->load;
     int ret = 0;
 
@@ -1170,8 +1172,8 @@ static int dirty_bitmap_load(QEMUFile *f, void *opaque, int version_id)
         return -EINVAL;
     }
 
-    if (mig_params->has_block_bitmap_mapping) {
-        alias_map = construct_alias_map(mig_params->block_bitmap_mapping,
+    if (block_bitmap_mapping) {
+        alias_map = construct_alias_map(block_bitmap_mapping,
                                         false, &error_abort);
     }