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[PATCH v11 10/12] parallels: Move statistic collection to a separate fun


From: Alexander Ivanov
Subject: [PATCH v11 10/12] parallels: Move statistic collection to a separate function
Date: Mon, 24 Apr 2023 11:31:45 +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>
Reviewed-by: Denis V. Lunev <den@openvz.org>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
---
 block/parallels.c | 52 +++++++++++++++++++++++++++--------------------
 1 file changed, 30 insertions(+), 22 deletions(-)

diff --git a/block/parallels.c b/block/parallels.c
index c3e220b60f..48ee5224c7 100644
--- a/block/parallels.c
+++ b/block/parallels.c
@@ -524,35 +524,20 @@ parallels_check_leak(BlockDriverState *bs, 
BdrvCheckResult *res,
     return 0;
 }
 
-static int coroutine_fn GRAPH_RDLOCK
-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;
+    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 BDRV_FIX_ERRORS is not set, out-of-image BAT entries were not
          * fixed. Skip not allocated and out-of-image BAT entries.
@@ -562,13 +547,36 @@ parallels_co_check(BlockDriverState *bs, BdrvCheckResult 
*res,
             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 GRAPH_RDLOCK
+parallels_co_check(BlockDriverState *bs, BdrvCheckResult *res,
+                   BdrvCheckMode fix)
+{
+    BDRVParallelsState *s = bs->opaque;
+    int ret;
+
+    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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