diff options
| -rw-r--r-- | block/qcow2-cluster.c | 23 |
1 files changed, 13 insertions, 10 deletions
diff --git a/block/qcow2-cluster.c b/block/qcow2-cluster.c index ed5c4b2a67..244b4a786d 100644 --- a/block/qcow2-cluster.c +++ b/block/qcow2-cluster.c @@ -239,14 +239,6 @@ static int l2_allocate(BlockDriverState *bs, int l1_index, uint64_t **table) return l2_offset; } - /* update the L1 entry */ - - s->l1_table[l1_index] = l2_offset | QCOW_OFLAG_COPIED; - ret = write_l1_entry(bs, l1_index); - if (ret < 0) { - return ret; - } - /* allocate a new entry in the l2 cache */ min_index = l2_cache_new_entry(bs); @@ -261,7 +253,7 @@ static int l2_allocate(BlockDriverState *bs, int l1_index, uint64_t **table) ret = bdrv_pread(bs->file, old_l2_offset, l2_table, s->l2_size * sizeof(uint64_t)); if (ret < 0) { - return ret; + goto fail; } } /* write the l2 table to the file */ @@ -269,7 +261,14 @@ static int l2_allocate(BlockDriverState *bs, int l1_index, uint64_t **table) ret = bdrv_pwrite(bs->file, l2_offset, l2_table, s->l2_size * sizeof(uint64_t)); if (ret < 0) { - return ret; + goto fail; + } + + /* update the L1 entry */ + s->l1_table[l1_index] = l2_offset | QCOW_OFLAG_COPIED; + ret = write_l1_entry(bs, l1_index); + if (ret < 0) { + goto fail; } /* update the l2 cache entry */ @@ -279,6 +278,10 @@ static int l2_allocate(BlockDriverState *bs, int l1_index, uint64_t **table) *table = l2_table; return 0; + +fail: + qcow2_l2_cache_reset(bs); + return ret; } static int count_contiguous_clusters(uint64_t nb_clusters, int cluster_size, |