migration: Create migrate_throttle_trigger_threshold()

Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Fabiano Rosas <farosas@suse.de>

migration/options.c

@@ -554,6 +554,15 @@ int migrate_multifd_zstd_level(void)
     return s->parameters.multifd_zstd_level;
 }
 
+uint8_t migrate_throttle_trigger_threshold(void)
+{
+    MigrationState *s;
+
+    s = migrate_get_current();
+
+    return s->parameters.throttle_trigger_threshold;
+}
+
 uint64_t migrate_xbzrle_cache_size(void)
 {
     MigrationState *s;

migration/options.h

@@ -55,6 +55,7 @@ int migrate_multifd_channels(void);
 MultiFDCompression migrate_multifd_compression(void);
 int migrate_multifd_zlib_level(void);
 int migrate_multifd_zstd_level(void);
+uint8_t migrate_throttle_trigger_threshold(void);
 uint64_t migrate_xbzrle_cache_size(void);
 
 #endif

migration/ram.c

@@ -1178,8 +1178,7 @@ static void migration_update_rates(RAMState *rs, int64_t end_time)
 
 static void migration_trigger_throttle(RAMState *rs)
 {
-    MigrationState *s = migrate_get_current();
-    uint64_t threshold = s->parameters.throttle_trigger_threshold;
+    uint64_t threshold = migrate_throttle_trigger_threshold();
     uint64_t bytes_xfer_period =
         stat64_get(&ram_counters.transferred) - rs->bytes_xfer_prev;
     uint64_t bytes_dirty_period = rs->num_dirty_pages_period * TARGET_PAGE_SIZE;