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[Qemu-devel] qcow2 resize with snapshots

From: zhangzhiming
Subject: [Qemu-devel] qcow2 resize with snapshots
Date: Fri, 6 May 2016 13:57:57 +0800

hi, i want to implement the function of qcow2 resize which has snapshots.
each snapshot of qcow2 will have a separate total size, and when apply a 
the image can be shrunk, and the total size of image will change after apply to 
a snapshot 
with different size.
now, there is a disk_size value in struct QcowSnapshot, i only need to change 
the size of current active 
image layer when apply a snapshot with different size, and the io request will 
be limit in the range of active layer.

and i want my code merged into the master of qemu.
please give me some comments. thanks.


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