diff options
Diffstat (limited to 'block/block-copy.c')
| -rw-r--r-- | block/block-copy.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/block/block-copy.c b/block/block-copy.c index abda7a80bd..8aa6ee6a5c 100644 --- a/block/block-copy.c +++ b/block/block-copy.c @@ -384,8 +384,10 @@ static int64_t block_copy_calculate_cluster_size(BlockDriverState *target, } BlockCopyState *block_copy_state_new(BdrvChild *source, BdrvChild *target, + const BdrvDirtyBitmap *bitmap, Error **errp) { + ERRP_GUARD(); BlockCopyState *s; int64_t cluster_size; BdrvDirtyBitmap *copy_bitmap; @@ -402,7 +404,17 @@ BlockCopyState *block_copy_state_new(BdrvChild *source, BdrvChild *target, return NULL; } bdrv_disable_dirty_bitmap(copy_bitmap); - bdrv_set_dirty_bitmap(copy_bitmap, 0, bdrv_dirty_bitmap_size(copy_bitmap)); + if (bitmap) { + if (!bdrv_merge_dirty_bitmap(copy_bitmap, bitmap, NULL, errp)) { + error_prepend(errp, "Failed to merge bitmap '%s' to internal " + "copy-bitmap: ", bdrv_dirty_bitmap_name(bitmap)); + bdrv_release_dirty_bitmap(copy_bitmap); + return NULL; + } + } else { + bdrv_set_dirty_bitmap(copy_bitmap, 0, + bdrv_dirty_bitmap_size(copy_bitmap)); + } /* * If source is in backing chain of target assume that target is going to be |