On Thu, Nov 26, 2015 at 01:05:21PM +0800, Fam Zheng wrote:
> @@ -1535,13 +1541,14 @@ static int64_t coroutine_fn
> bdrv_co_get_block_status(BlockDriverState *bs,
> }
> }
>
> - if (bs->file &&
> + if (*file && *file != bs &&
> (ret & BDRV_BLOCK_DATA) && !(ret & BDRV_BLOCK_ZERO) &&
> (ret & BDRV_BLOCK_OFFSET_VALID)) {What is the purpose of this change?
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