diff options
| -rw-r--r-- | qemu-img.c | 8 |
1 files changed, 2 insertions, 6 deletions
diff --git a/qemu-img.c b/qemu-img.c index 31627b0da8..cd096a1361 100644 --- a/qemu-img.c +++ b/qemu-img.c @@ -1425,12 +1425,8 @@ static int img_convert(int argc, char **argv) } assert (remainder == 0); - if (n < cluster_sectors) { - memset(buf + n * 512, 0, cluster_size - n * 512); - } - if (!buffer_is_zero(buf, cluster_size)) { - ret = bdrv_write_compressed(out_bs, sector_num, buf, - cluster_sectors); + if (!buffer_is_zero(buf, n * BDRV_SECTOR_SIZE)) { + ret = bdrv_write_compressed(out_bs, sector_num, buf, n); if (ret != 0) { error_report("error while compressing sector %" PRId64 ": %s", sector_num, strerror(-ret)); |