diff options
| -rw-r--r-- | block/vmdk.c | 20 |
1 files changed, 13 insertions, 7 deletions
diff --git a/block/vmdk.c b/block/vmdk.c index 673d3f5fb4..2cbfd3e72e 100644 --- a/block/vmdk.c +++ b/block/vmdk.c @@ -2137,23 +2137,29 @@ static ImageInfoSpecific *vmdk_get_specific_info(BlockDriverState *bs) return spec_info; } +static bool vmdk_extents_type_eq(const VmdkExtent *a, const VmdkExtent *b) +{ + return a->flat == b->flat && + a->compressed == b->compressed && + (a->flat || a->cluster_sectors == b->cluster_sectors); +} + static int vmdk_get_info(BlockDriverState *bs, BlockDriverInfo *bdi) { int i; BDRVVmdkState *s = bs->opaque; assert(s->num_extents); - bdi->needs_compressed_writes = s->extents[0].compressed; - if (!s->extents[0].flat) { - bdi->cluster_size = s->extents[0].cluster_sectors << BDRV_SECTOR_BITS; - } + /* See if we have multiple extents but they have different cases */ for (i = 1; i < s->num_extents; i++) { - if (bdi->needs_compressed_writes != s->extents[i].compressed || - (bdi->cluster_size && bdi->cluster_size != - s->extents[i].cluster_sectors << BDRV_SECTOR_BITS)) { + if (!vmdk_extents_type_eq(&s->extents[0], &s->extents[i])) { return -ENOTSUP; } } + bdi->needs_compressed_writes = s->extents[0].compressed; + if (!s->extents[0].flat) { + bdi->cluster_size = s->extents[0].cluster_sectors << BDRV_SECTOR_BITS; + } return 0; } |