On 07/05/2017 07:57 AM, Stefan Hajnoczi wrote: > Use qcow2_calc_prealloc_size() to get the required file size. > > Signed-off-by: Stefan Hajnoczi <stefa...@redhat.com> > Reviewed-by: Alberto Garcia <be...@igalia.com> > ---
>
> +static BlockMeasureInfo *qcow2_measure(QemuOpts *opts, BlockDriverState
> *in_bs,
> + } else {
> + int cluster_sectors = cluster_size / BDRV_SECTOR_SIZE;
> + int64_t sector_num;
> + int pnum = 0;
> +
> + for (sector_num = 0;
> + sector_num < ssize / BDRV_SECTOR_SIZE;
> + sector_num += pnum) {
> + int nb_sectors = MAX(ssize / BDRV_SECTOR_SIZE - sector_num,
> + INT_MAX);
> + BlockDriverState *file;
> + int64_t ret;
> +
> + ret = bdrv_get_block_status_above(in_bs, NULL,
> + sector_num, nb_sectors,
> + &pnum, &file);
Oh what fun. More sector-based iteration that I get to convert to
byte-based on another respin of my work ;)
--
Eric Blake, Principal Software Engineer
Red Hat, Inc. +1-919-301-3266
Virtualization: qemu.org | libvirt.org
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