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Re: [Qemu-block] [PATCH v13 06/12] qcow2: Make distinction between zero

From: Max Reitz
Subject: Re: [Qemu-block] [PATCH v13 06/12] qcow2: Make distinction between zero cluster types obvious
Date: Mon, 8 May 2017 20:39:23 +0200
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On 08.05.2017 19:15, Eric Blake wrote:
> On 05/08/2017 10:54 AM, Max Reitz wrote:
>> On 07.05.2017 02:05, Eric Blake wrote:
>>> Treat plain zero clusters differently from allocated ones, so that
>>> we can simplify the logic of checking whether an offset is present.
>>> Do this by splitting QCOW2_CLUSTER_ZERO into two new enums,
>> (No, I'm not mentioning the fact that 060.out contains one more mention
>> of "Data cluster offset" that should definitely be a "Cluster allocation
>> offset" or even "Preallocated zero cluster offset" at
>> block/qcow2-cluster.c:1780, because let's really worry about this later)
> Oh, you mean this?
> https://lists.gnu.org/archive/html/qemu-devel/2017-05/msg01784.html

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