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Re: [PATCH v4 09/30] qcow2: Add subcluster-related fields to BDRVQcow2St


From: Vladimir Sementsov-Ogievskiy
Subject: Re: [PATCH v4 09/30] qcow2: Add subcluster-related fields to BDRVQcow2State
Date: Fri, 10 Apr 2020 12:45:55 +0300
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.2.1

17.03.2020 21:16, Alberto Garcia wrote:
This patch adds the following new fields to BDRVQcow2State:

- subclusters_per_cluster: Number of subclusters in a cluster
- subcluster_size: The size of each subcluster, in bytes
- subcluster_bits: No. of bits so 1 << subcluster_bits = subcluster_size

Images without subclusters are treated as if they had exactly one,

exactly one subcluster per cluster...

with subcluster_size = cluster_size.

Signed-off-by: Alberto Garcia <address@hidden>

Reviewed-by: Vladimir Sementsov-Ogievskiy <address@hidden>



--
Best regards,
Vladimir



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