diff options
| -rw-r--r-- | block/qcow2-cluster.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/block/qcow2-cluster.c b/block/qcow2-cluster.c index f93960f..39323ac 100644 --- a/block/qcow2-cluster.c +++ b/block/qcow2-cluster.c @@ -281,7 +281,7 @@ fail: * cluster which may require a different handling) */ static int count_contiguous_clusters(uint64_t nb_clusters, int cluster_size, - uint64_t *l2_table, uint64_t start, uint64_t stop_flags) + uint64_t *l2_table, uint64_t stop_flags) { int i; uint64_t mask = stop_flags | L2E_OFFSET_MASK | QCOW2_CLUSTER_COMPRESSED; @@ -293,14 +293,14 @@ static int count_contiguous_clusters(uint64_t nb_clusters, int cluster_size, assert(qcow2_get_cluster_type(first_entry) != QCOW2_CLUSTER_COMPRESSED); - for (i = start; i < start + nb_clusters; i++) { + for (i = 0; i < nb_clusters; i++) { uint64_t l2_entry = be64_to_cpu(l2_table[i]) & mask; if (offset + (uint64_t) i * cluster_size != l2_entry) { break; } } - return (i - start); + return i; } static int count_contiguous_free_clusters(uint64_t nb_clusters, uint64_t *l2_table) @@ -493,7 +493,7 @@ int qcow2_get_cluster_offset(BlockDriverState *bs, uint64_t offset, return -EIO; } c = count_contiguous_clusters(nb_clusters, s->cluster_size, - &l2_table[l2_index], 0, QCOW_OFLAG_ZERO); + &l2_table[l2_index], QCOW_OFLAG_ZERO); *cluster_offset = 0; break; case QCOW2_CLUSTER_UNALLOCATED: @@ -504,7 +504,7 @@ int qcow2_get_cluster_offset(BlockDriverState *bs, uint64_t offset, case QCOW2_CLUSTER_NORMAL: /* how many allocated clusters ? */ c = count_contiguous_clusters(nb_clusters, s->cluster_size, - &l2_table[l2_index], 0, QCOW_OFLAG_ZERO); + &l2_table[l2_index], QCOW_OFLAG_ZERO); *cluster_offset &= L2E_OFFSET_MASK; break; default: @@ -934,7 +934,7 @@ static int handle_copied(BlockDriverState *bs, uint64_t guest_offset, /* We keep all QCOW_OFLAG_COPIED clusters */ keep_clusters = count_contiguous_clusters(nb_clusters, s->cluster_size, - &l2_table[l2_index], 0, + &l2_table[l2_index], QCOW_OFLAG_COPIED | QCOW_OFLAG_ZERO); assert(keep_clusters <= nb_clusters); |