parallels: Move check of unclean image to a separate function

We will add more and more checks so we need a better code structure
in parallels_co_check. Let each check performs in a separate loop
in a separate helper.

Signed-off-by: Alexander Ivanov <alexander.ivanov@virtuozzo.com>
Reviewed-by: Denis V. Lunev <den@openvz.org>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Message-Id: <20230424093147.197643-7-alexander.ivanov@virtuozzo.com>
Reviewed-by: Hanna Czenczek <hreitz@redhat.com>
Signed-off-by: Hanna Czenczek <hreitz@redhat.com>

block/parallels.c

@@ -420,6 +420,25 @@ parallels_co_readv(BlockDriverState *bs, int64_t sector_num, int nb_sectors,
     return ret;
 }
 
+static void parallels_check_unclean(BlockDriverState *bs,
+                                    BdrvCheckResult *res,
+                                    BdrvCheckMode fix)
+{
+    BDRVParallelsState *s = bs->opaque;
+
+    if (!s->header_unclean) {
+        return;
+    }
+
+    fprintf(stderr, "%s image was not closed correctly\n",
+            fix & BDRV_FIX_ERRORS ? "Repairing" : "ERROR");
+    res->corruptions++;
+    if (fix & BDRV_FIX_ERRORS) {
+        /* parallels_close will do the job right */
+        res->corruptions_fixed++;
+        s->header_unclean = false;
+    }
+}
 
 static int coroutine_fn GRAPH_RDLOCK
 parallels_co_check(BlockDriverState *bs, BdrvCheckResult *res,
@@ -437,16 +456,8 @@ parallels_co_check(BlockDriverState *bs, BdrvCheckResult *res,
     }
 
     qemu_co_mutex_lock(&s->lock);
-    if (s->header_unclean) {
-        fprintf(stderr, "%s image was not closed correctly\n",
-                fix & BDRV_FIX_ERRORS ? "Repairing" : "ERROR");
-        res->corruptions++;
-        if (fix & BDRV_FIX_ERRORS) {
-            /* parallels_close will do the job right */
-            res->corruptions_fixed++;
-            s->header_unclean = false;
-        }
-    }
+
+    parallels_check_unclean(bs, res, fix);
 
     res->bfi.total_clusters = s->bat_size;
     res->bfi.compressed_clusters = 0; /* compression is not supported */