On 9/18/18 3:45 AM, lampahome wrote:
Both values correspond to L2 entries with bit 0 set. However,
QCOW2_CLUSTER_ZERO_ALLOC is an entry that has a non-zero value in bits 9-55
(the cluster has an allocated host location, we guarantee that things read
as zero regardless of whether the host data
>
>
> Both values correspond to L2 entries with bit 0 set. However,
> QCOW2_CLUSTER_ZERO_ALLOC is an entry that has a non-zero value in bits 9-55
> (the cluster has an allocated host location, we guarantee that things read
> as zero regardless of whether the host data actually contains zeroes at
On 9/14/18 3:35 AM, lampahome wrote:
The function qcow2_get_cluster_type() is in /block/qcow2.h
It will return the flage based on the entry.
There're some flags confused me.
What's difference between QCOW2_CLUSTER_ZERO_ALLOC &
QCOW2_CLUSTER_ZERO_PLAIN
in there?
Look at docs/interop/qcow2.txt
The function qcow2_get_cluster_type() is in /block/qcow2.h
It will return the flage based on the entry.
There're some flags confused me.
What's difference between QCOW2_CLUSTER_ZERO_ALLOC &
QCOW2_CLUSTER_ZERO_PLAIN
in there?
