diff options
Diffstat (limited to 'block/qcow2-cluster.c')
| -rw-r--r-- | block/qcow2-cluster.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/block/qcow2-cluster.c b/block/qcow2-cluster.c index d349655..fdedf17 100644 --- a/block/qcow2-cluster.c +++ b/block/qcow2-cluster.c @@ -306,8 +306,8 @@ void qcow2_encrypt_sectors(BDRVQcowState *s, int64_t sector_num, } -static int qcow_read(BlockDriverState *bs, int64_t sector_num, - uint8_t *buf, int nb_sectors) +int qcow2_read(BlockDriverState *bs, int64_t sector_num, uint8_t *buf, + int nb_sectors) { BDRVQcowState *s = bs->opaque; int ret, index_in_cluster, n, n1; @@ -358,7 +358,7 @@ static int copy_sectors(BlockDriverState *bs, uint64_t start_sect, n = n_end - n_start; if (n <= 0) return 0; - ret = qcow_read(bs, start_sect + n_start, s->cluster_data, n); + ret = qcow2_read(bs, start_sect + n_start, s->cluster_data, n); if (ret < 0) return ret; if (s->crypt_method) { @@ -732,6 +732,12 @@ uint64_t qcow2_alloc_cluster_offset(BlockDriverState *bs, } nb_clusters = i; + if (!nb_clusters) { + abort(); + } + + QLIST_INSERT_HEAD(&s->cluster_allocs, m, next_in_flight); + /* allocate a new cluster */ cluster_offset = qcow2_alloc_clusters(bs, nb_clusters * s->cluster_size); |