diff options
| -rw-r--r-- | block/parallels.c | 14 |
1 files changed, 6 insertions, 8 deletions
diff --git a/block/parallels.c b/block/parallels.c index 15bc97b759..2747400577 100644 --- a/block/parallels.c +++ b/block/parallels.c @@ -220,20 +220,18 @@ static int64_t allocate_clusters(BlockDriverState *bs, int64_t sector_num, if (bs->backing) { int64_t nb_cow_sectors = to_allocate * s->tracks; int64_t nb_cow_bytes = nb_cow_sectors << BDRV_SECTOR_BITS; - QEMUIOVector qiov = - QEMU_IOVEC_INIT_BUF(qiov, qemu_blockalign(bs, nb_cow_bytes), - nb_cow_bytes); + void *buf = qemu_blockalign(bs, nb_cow_bytes); - ret = bdrv_co_preadv(bs->backing, idx * s->tracks * BDRV_SECTOR_SIZE, - nb_cow_bytes, &qiov, 0); + ret = bdrv_co_pread(bs->backing, idx * s->tracks * BDRV_SECTOR_SIZE, + nb_cow_bytes, buf, 0); if (ret < 0) { - qemu_vfree(qemu_iovec_buf(&qiov)); + qemu_vfree(buf); return ret; } ret = bdrv_co_pwritev(bs->file, s->data_end * BDRV_SECTOR_SIZE, - nb_cow_bytes, &qiov, 0); - qemu_vfree(qemu_iovec_buf(&qiov)); + nb_cow_bytes, buf, 0); + qemu_vfree(buf); if (ret < 0) { return ret; } |