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parallels: Move statistic collection 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: <20230424093147.197643-11-alexander.ivanov@virtuozzo.com>
Reviewed-by: Hanna Czenczek <hreitz@redhat.com>
Signed-off-by: Hanna Czenczek <hreitz@redhat.com>
This commit is contained in:
Alexander Ivanov 2023-04-24 11:31:45 +02:00 committed by Hanna Czenczek
parent 09a21edfaf
commit 7e259e2540
1 changed files with 32 additions and 24 deletions
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56
block/parallels.c
View File

@ -524,14 +524,43 @@ parallels_check_leak(BlockDriverState *bs, BdrvCheckResult *res,
return 0; return 0;
} }
static void parallels_collect_statistics(BlockDriverState *bs,
BdrvCheckResult *res,
BdrvCheckMode fix)
{
BDRVParallelsState *s = bs->opaque;
int64_t off, prev_off;
uint32_t i;
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++) {
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.
*/
if (off == 0 || off + s->cluster_size > res->image_end_offset) {
prev_off = 0;
continue;
}
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 static int coroutine_fn GRAPH_RDLOCK
parallels_co_check(BlockDriverState *bs, BdrvCheckResult *res, parallels_co_check(BlockDriverState *bs, BdrvCheckResult *res,
BdrvCheckMode fix) BdrvCheckMode fix)
{ {
BDRVParallelsState *s = bs->opaque; BDRVParallelsState *s = bs->opaque;
int64_t prev_off;
int ret; int ret;
uint32_t i;
qemu_co_mutex_lock(&s->lock); qemu_co_mutex_lock(&s->lock);
@ -547,28 +576,7 @@ parallels_co_check(BlockDriverState *bs, BdrvCheckResult *res,
goto out; goto out;
} }
res->bfi.total_clusters = s->bat_size; parallels_collect_statistics(bs, res, fix);
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;
/*
* If BDRV_FIX_ERRORS is not set, out-of-image BAT entries were not
* fixed. Skip not allocated and out-of-image BAT entries.
*/
if (off == 0 || off + s->cluster_size > res->image_end_offset) {
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;
}
out: out:
qemu_co_mutex_unlock(&s->lock); qemu_co_mutex_unlock(&s->lock);