Revision d191d12d block/qcow2-cluster.c

b/block/qcow2-cluster.c
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    new_l1_size = s->l1_size;
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    if (min_size <= new_l1_size)
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        return 0;
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    if (new_l1_size == 0) {
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        new_l1_size = 1;
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    }
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    while (min_size > new_l1_size) {
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        new_l1_size = (new_l1_size * 3 + 1) / 2;
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    }

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