diff options
| -rw-r--r-- | block/qcow2-refcount.c | 27 |
1 files changed, 15 insertions, 12 deletions
diff --git a/block/qcow2-refcount.c b/block/qcow2-refcount.c index 744107cd1d..a7f295d933 100644 --- a/block/qcow2-refcount.c +++ b/block/qcow2-refcount.c @@ -404,6 +404,7 @@ static int write_refcount_block_entries(BlockDriverState *bs, { BDRVQcowState *s = bs->opaque; size_t size; + int ret; if (cache_refcount_updates) { return 0; @@ -414,12 +415,13 @@ static int write_refcount_block_entries(BlockDriverState *bs, & ~(REFCOUNTS_PER_SECTOR - 1); size = (last_index - first_index) << REFCOUNT_SHIFT; + BLKDBG_EVENT(bs->file, BLKDBG_REFBLOCK_UPDATE_PART); - if (bdrv_pwrite(bs->file, + ret = bdrv_pwrite(bs->file, refcount_block_offset + (first_index << REFCOUNT_SHIFT), - &s->refcount_block_cache[first_index], size) != size) - { - return -EIO; + &s->refcount_block_cache[first_index], size); + if (ret < 0) { + return ret; } return 0; @@ -460,10 +462,10 @@ static int QEMU_WARN_UNUSED_RESULT update_refcount(BlockDriverState *bs, table_index = cluster_index >> (s->cluster_bits - REFCOUNT_SHIFT); if ((old_table_index >= 0) && (table_index != old_table_index)) { - if (write_refcount_block_entries(bs, refcount_block_offset, - first_index, last_index) < 0) - { - return -EIO; + ret = write_refcount_block_entries(bs, refcount_block_offset, + first_index, last_index); + if (ret < 0) { + return ret; } first_index = -1; @@ -505,10 +507,11 @@ fail: /* Write last changed block to disk */ if (refcount_block_offset != 0) { - if (write_refcount_block_entries(bs, refcount_block_offset, - first_index, last_index) < 0) - { - return ret < 0 ? ret : -EIO; + int wret; + wret = write_refcount_block_entries(bs, refcount_block_offset, + first_index, last_index); + if (wret < 0) { + return ret < 0 ? ret : wret; } } |