Revision 7322afe7

b/block/qcow2-refcount.c
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    printf("update_refcount: offset=%" PRId64 " size=%" PRId64 " addend=%d\n",
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           offset, length, addend);
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#endif
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    if (length <= 0)
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    if (length < 0) {
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        return -EINVAL;
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    } else if (length == 0) {
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        return 0;
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    }
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    start = offset & ~(s->cluster_size - 1);


  		





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    last = (offset + length - 1) & ~(s->cluster_size - 1);


  		





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    for(cluster_offset = start; cluster_offset <= last;


  		












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