Since we have used bitmap, leak check is useless. Transform
parallels_truncate_unused_clusters() to parallels_check_unused_clusters()
helper and use it in leak check.
Signed-off-by: Alexander Ivanov <alexander.iva...@virtuozzo.com>
---
block/parallels.c | 121 +++++++++++++++++++++++++---------------------
1 file changed, 67 insertions(+), 54 deletions(-)
diff --git a/block/parallels.c b/block/parallels.c
index 136865d53e..5ed58826bb 100644
--- a/block/parallels.c
+++ b/block/parallels.c
@@ -768,57 +768,87 @@ parallels_check_outside_image(BlockDriverState *bs,
BdrvCheckResult *res,
return 0;
}
+static int64_t GRAPH_RDLOCK
+parallels_check_unused_clusters(BlockDriverState *bs, bool truncate)
+{
+ BDRVParallelsState *s = bs->opaque;
+ int64_t leak, file_size, end_off = 0;
+ int ret;
+
+ file_size = bdrv_getlength(bs->file->bs);
+ if (file_size < 0) {
+ return file_size;
+ }
+
+ if (s->used_bmap_size > 0) {
+ end_off = find_last_bit(s->used_bmap, s->used_bmap_size);
+ if (end_off == s->used_bmap_size) {
+ end_off = 0;
+ } else {
+ end_off = (end_off + 1) * s->cluster_size;
+ }
+ }
+
+ end_off += s->data_start * BDRV_SECTOR_SIZE;
+ leak = file_size - end_off;
+ if (leak < 0) {
+ return -EINVAL;
+ }
+ if (!truncate || leak == 0) {
+ return leak;
+ }
+
+ ret = bdrv_truncate(bs->file, end_off, true, PREALLOC_MODE_OFF, 0, NULL);
+ if (ret) {
+ return ret;
+ }
+
+ s->data_end = end_off / BDRV_SECTOR_SIZE;
+
+ parallels_free_used_bitmap(bs);
+ ret = parallels_fill_used_bitmap(bs);
+ if (ret < 0) {
+ return ret;
+ }
+
+ return leak;
+}
+
static int coroutine_fn GRAPH_RDLOCK
parallels_check_leak(BlockDriverState *bs, BdrvCheckResult *res,
BdrvCheckMode fix, bool explicit)
{
BDRVParallelsState *s = bs->opaque;
- int64_t size, count;
- int ret;
+ int64_t leak, count, size;
+
+ leak = parallels_check_unused_clusters(bs, fix & BDRV_FIX_LEAKS);
+ if (leak < 0) {
+ res->check_errors++;
+ return leak;
+ }
+ if (leak == 0) {
+ return 0;
+ }
size = bdrv_co_getlength(bs->file->bs);
if (size < 0) {
res->check_errors++;
return size;
}
- if (size <= res->image_end_offset) {
+ res->image_end_offset = size;
+
+ if (!explicit) {
return 0;
}
- count = DIV_ROUND_UP(size - res->image_end_offset, s->cluster_size);
- if (explicit) {
- fprintf(stderr,
- "%s space leaked at the end of the image %" PRId64 "\n",
- fix & BDRV_FIX_LEAKS ? "Repairing" : "ERROR",
- size - res->image_end_offset);
- res->leaks += count;
- }
+ count = DIV_ROUND_UP(leak, s->cluster_size);
+ fprintf(stderr,
+ "%s space leaked at the end of the image %" PRId64 "\n",
+ fix & BDRV_FIX_LEAKS ? "Repairing" : "ERROR", leak);
+ res->leaks += count;
+
if (fix & BDRV_FIX_LEAKS) {
- Error *local_err = NULL;
-
- /*
- * In order to really repair the image, we must shrink it.
- * That means we have to pass exact=true.
- */
- ret = bdrv_co_truncate(bs->file, res->image_end_offset, true,
- PREALLOC_MODE_OFF, 0, &local_err);
- if (ret < 0) {
- error_report_err(local_err);
- res->check_errors++;
- return ret;
- }
- s->data_end = res->image_end_offset >> BDRV_SECTOR_BITS;
-
- parallels_free_used_bitmap(bs);
- ret = parallels_fill_used_bitmap(bs);
- if (ret == -ENOMEM) {
- res->check_errors++;
- return ret;
- }
-
- if (explicit) {
- res->leaks_fixed += count;
- }
+ res->leaks_fixed += count;
}
return 0;
@@ -1454,23 +1484,6 @@ fail:
return ret;
}
-static int GRAPH_RDLOCK parallels_truncate_unused_clusters(BlockDriverState
*bs)
-{
- BDRVParallelsState *s = bs->opaque;
- uint64_t end_off = 0;
- if (s->used_bmap_size > 0) {
- end_off = find_last_bit(s->used_bmap, s->used_bmap_size);
- if (end_off == s->used_bmap_size) {
- end_off = 0;
- } else {
- end_off = (end_off + 1) * s->cluster_size;
- }
- }
- end_off += s->data_start * BDRV_SECTOR_SIZE;
- s->data_end = end_off / BDRV_SECTOR_SIZE;
- return bdrv_truncate(bs->file, end_off, true, PREALLOC_MODE_OFF, 0, NULL);
-}
-
static int GRAPH_RDLOCK parallels_inactivate(BlockDriverState *bs)
{
BDRVParallelsState *s = bs->opaque;
@@ -1488,7 +1501,7 @@ static int GRAPH_RDLOCK
parallels_inactivate(BlockDriverState *bs)
parallels_update_header(bs);
/* errors are ignored, so we might as well pass exact=true */
- ret = parallels_truncate_unused_clusters(bs);
+ ret = parallels_check_unused_clusters(bs, true);
if (ret < 0) {
error_report("Failed to truncate image: %s", strerror(-ret));
}
--
2.40.1
