When the VMDK is streamOptimized (or compressed), the
next_cluster_sector must not be incremented by a fixed number of
sectors. Instead of this, it must be rounded up to the next consecutive
sector. Fixing this results in much smaller compressed images.
Signed-off-by: Radoslav Gerganov <rgerganov@vmware.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
write_end_sector = DIV_ROUND_UP(write_offset + write_len, BDRV_SECTOR_SIZE);
- extent->next_cluster_sector = MAX(extent->next_cluster_sector,
- write_end_sector);
+ if (extent->compressed) {
+ extent->next_cluster_sector = write_end_sector;
+ } else {
+ extent->next_cluster_sector = MAX(extent->next_cluster_sector,
+ write_end_sector);
+ }
if (ret != write_len) {
ret = ret < 0 ? ret : -EIO;