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由 Fam Zheng 提交于
Like bdrv_is_allocated_above, this function follows the backing chain until seeing BDRV_BLOCK_ALLOCATED. Base is not included. Reimplement bdrv_is_allocated on top. [Initialized bdrv_co_get_block_status_above() ret to 0 to silence mingw64 compiler warning about the unitialized variable. assert(bs != base) prevents that case but I suppose the program could be compiled with -DNDEBUG. --Stefan] Signed-off-by: NFam Zheng <famz@redhat.com> Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>
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