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| author | Fam Zheng <famz@redhat.com> | 2016-01-26 11:58:58 +0800 |
|---|---|---|
| committer | Max Reitz <mreitz@redhat.com> | 2016-02-02 17:50:47 +0100 |
| commit | d0a18f10251f515c86dcaec5bdf979a4e07fafc5 (patch) | |
| tree | 6faef7830e2c1b94584aff25d92a9cbdcfaebf2b | |
| parent | 7429e207883fb6f6bd46cefee4c79771e50f35f4 (diff) | |
| download | qemu-d0a18f10251f515c86dcaec5bdf979a4e07fafc5.zip qemu-d0a18f10251f515c86dcaec5bdf979a4e07fafc5.tar.gz qemu-d0a18f10251f515c86dcaec5bdf979a4e07fafc5.tar.bz2 | |
vmdk: Fix calculation of block status's offset
"offset" is the offset of cluster and sector_num doesn't necessarily
refer to the start of it, it should add index_in_cluster.
Signed-off-by: Fam Zheng <famz@redhat.com>
Message-id: 1453780743-16806-12-git-send-email-famz@redhat.com
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
| -rw-r--r-- | block/vmdk.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/block/vmdk.c b/block/vmdk.c index 109fd5f..9d5a18a 100644 --- a/block/vmdk.c +++ b/block/vmdk.c @@ -1278,6 +1278,7 @@ static int64_t coroutine_fn vmdk_co_get_block_status(BlockDriverState *bs, 0, 0); qemu_co_mutex_unlock(&s->lock); + index_in_cluster = vmdk_find_index_in_cluster(extent, sector_num); switch (ret) { case VMDK_ERROR: ret = -EIO; @@ -1291,13 +1292,14 @@ static int64_t coroutine_fn vmdk_co_get_block_status(BlockDriverState *bs, case VMDK_OK: ret = BDRV_BLOCK_DATA; if (extent->file == bs->file && !extent->compressed) { - ret |= BDRV_BLOCK_OFFSET_VALID | offset; + ret |= BDRV_BLOCK_OFFSET_VALID; + ret |= (offset + (index_in_cluster << BDRV_SECTOR_BITS)) + & BDRV_BLOCK_OFFSET_MASK; } break; } - index_in_cluster = vmdk_find_index_in_cluster(extent, sector_num); n = extent->cluster_sectors - index_in_cluster; if (n > nb_sectors) { n = nb_sectors; |