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[PATCH 8/9] parallels: Move statistic collection to a separate function


From: Alexander Ivanov
Subject: [PATCH 8/9] parallels: Move statistic collection to a separate function
Date: Thu, 18 Aug 2022 17:14:55 +0200

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>
---
 block/parallels.c | 53 +++++++++++++++++++++++++++--------------------
 1 file changed, 31 insertions(+), 22 deletions(-)

diff --git a/block/parallels.c b/block/parallels.c
index 6a5fe8e5b2..f19e86d5d2 100644
--- a/block/parallels.c
+++ b/block/parallels.c
@@ -528,47 +528,56 @@ static int parallels_check_leak(BlockDriverState *bs,
     return 0;
 }
 
-static int coroutine_fn parallels_co_check(BlockDriverState *bs,
-                                           BdrvCheckResult *res,
-                                           BdrvCheckMode fix)
+static void parallels_collect_statistics(BlockDriverState *bs,
+                                         BdrvCheckResult *res,
+                                         BdrvCheckMode fix)
 {
     BDRVParallelsState *s = bs->opaque;
-    int64_t prev_off;
-    int ret = 0;
+    int64_t off, prev_off;
     uint32_t i;
 
-    qemu_co_mutex_lock(&s->lock);
-
-    parallels_check_unclean(bs, res, fix);
-
-    ret = parallels_check_outside_image(bs, res, fix);
-    if (ret < 0) {
-        goto out;
-    }
-
-    ret = parallels_check_leak(bs, res, fix);
-    if (ret < 0) {
-        goto out;
-    }
-
     res->bfi.total_clusters = s->bat_size;
     res->bfi.compressed_clusters = 0; /* compression is not supported */
 
     prev_off = 0;
     for (i = 0; i < s->bat_size; i++) {
-        int64_t off = bat2sect(s, i) << BDRV_SECTOR_BITS;
+        off = bat2sect(s, i) << BDRV_SECTOR_BITS;
         if (off == 0) {
             prev_off = 0;
             continue;
         }
 
-        res->bfi.allocated_clusters++;
-
         if (prev_off != 0 && (prev_off + s->cluster_size) != off) {
             res->bfi.fragmented_clusters++;
         }
+
         prev_off = off;
+        res->bfi.allocated_clusters++;
     }
+}
+
+static int coroutine_fn parallels_co_check(BlockDriverState *bs,
+                                           BdrvCheckResult *res,
+                                           BdrvCheckMode fix)
+{
+    BDRVParallelsState *s = bs->opaque;
+    int ret = 0;
+
+    qemu_co_mutex_lock(&s->lock);
+
+    parallels_check_unclean(bs, res, fix);
+
+    ret = parallels_check_outside_image(bs, res, fix);
+    if (ret < 0) {
+        goto out;
+    }
+
+    ret = parallels_check_leak(bs, res, fix);
+    if (ret < 0) {
+        goto out;
+    }
+
+    parallels_collect_statistics(bs, res, fix);
 
 out:
     qemu_co_mutex_unlock(&s->lock);
-- 
2.34.1




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