diff options
| -rw-r--r-- | block/block-copy.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/block/block-copy.c b/block/block-copy.c index c39cc9cffe..79798a1567 100644 --- a/block/block-copy.c +++ b/block/block-copy.c @@ -109,9 +109,9 @@ BlockCopyState *block_copy_state_new(BdrvChild *source, BdrvChild *target, s->use_copy_range = false; s->copy_size = cluster_size; } else if (write_flags & BDRV_REQ_WRITE_COMPRESSED) { - /* Compression is not supported for copy_range */ + /* Compression supports only cluster-size writes and no copy-range. */ s->use_copy_range = false; - s->copy_size = MAX(cluster_size, BLOCK_COPY_MAX_BUFFER); + s->copy_size = cluster_size; } else { /* * copy_range does not respect max_transfer (it's a TODO), so we factor |