[Qemu-devel] Different type of qcow2_get_cluster_type

[lampahome]

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?