diff options
| -rw-r--r-- | block/mirror.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/block/mirror.c b/block/mirror.c index 0e74666d01..b7b1ded30f 100644 --- a/block/mirror.c +++ b/block/mirror.c @@ -533,11 +533,15 @@ static int coroutine_fn mirror_dirty_init(MirrorBlockJob *s) BlockDriverState *base = s->base; BlockDriverState *bs = blk_bs(s->common.blk); BlockDriverState *target_bs = blk_bs(s->target); - bool mark_all_dirty = base == NULL && !bdrv_has_zero_init(target_bs); int ret, n; end = s->bdev_length / BDRV_SECTOR_SIZE; + if (base == NULL && !bdrv_has_zero_init(target_bs)) { + bdrv_set_dirty_bitmap(s->dirty_bitmap, 0, end); + return 0; + } + /* First part, loop on the sectors and initialize the dirty bitmap. */ for (sector_num = 0; sector_num < end; ) { /* Just to make sure we are not exceeding int limit. */ @@ -556,7 +560,7 @@ static int coroutine_fn mirror_dirty_init(MirrorBlockJob *s) } assert(n > 0); - if (ret == 1 || mark_all_dirty) { + if (ret == 1) { bdrv_set_dirty_bitmap(s->dirty_bitmap, sector_num, n); } sector_num += n; |