qmp: add autoload parameter to block-dirty-bitmap-add

Optional. Default is false.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Signed-off-by: Denis V. Lunev <den@openvz.org>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Message-id: 20170628120530.31251-25-vsementsov@virtuozzo.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
diff --git a/blockdev.c b/blockdev.c
index 2ef731b..b7c1449 100644
--- a/blockdev.c
+++ b/blockdev.c
@@ -1984,6 +1984,7 @@
     qmp_block_dirty_bitmap_add(action->node, action->name,
                                action->has_granularity, action->granularity,
                                action->has_persistent, action->persistent,
+                               action->has_autoload, action->autoload,
                                &local_err);
 
     if (!local_err) {
@@ -2710,6 +2711,7 @@
 void qmp_block_dirty_bitmap_add(const char *node, const char *name,
                                 bool has_granularity, uint32_t granularity,
                                 bool has_persistent, bool persistent,
+                                bool has_autoload, bool autoload,
                                 Error **errp)
 {
     BlockDriverState *bs;
@@ -2739,6 +2741,15 @@
     if (!has_persistent) {
         persistent = false;
     }
+    if (!has_autoload) {
+        autoload = false;
+    }
+
+    if (has_autoload && !persistent) {
+        error_setg(errp, "Autoload flag must be used only for persistent "
+                         "bitmaps");
+        return;
+    }
 
     if (persistent &&
         !bdrv_can_store_new_dirty_bitmap(bs, name, granularity, errp))
@@ -2747,9 +2758,12 @@
     }
 
     bitmap = bdrv_create_dirty_bitmap(bs, granularity, name, errp);
-    if (bitmap != NULL) {
-        bdrv_dirty_bitmap_set_persistance(bitmap, persistent);
+    if (bitmap == NULL) {
+        return;
     }
+
+    bdrv_dirty_bitmap_set_persistance(bitmap, persistent);
+    bdrv_dirty_bitmap_set_autoload(bitmap, autoload);
 }
 
 void qmp_block_dirty_bitmap_remove(const char *node, const char *name,