Re: [Qemu-devel] [PATCH v2 00/17] qapi: Convert savevm, loadvm, delvm and info snapshots

[Wenchao Xia <xiawenc@linux.vnet.ibm.com>]

> 
> We should also merge functionality of migrations and vm-snapshots and make
> some clean-ups of this code. I could do it as another patch. With this
> rewrite we could make vm-snapshots asynchronous.
> 
>
Hi, Pavel
 For vm-snapshots asynchronous, I have sent a RFC patch for it at:
http://lists.nongnu.org/archive/html/qemu-devel/2012-12/msg00800.html

and seems dietmar@proxmox.com also have his own solution at:
https://git.proxmox.com/?p=pve-qemu-kvm.git;a=blob;f=debian/patches/internal-snapshot-async.patch;

  So I am reworking on it to include Dietmar's solution, My plan
will include three steps:
1) abstract a function for internal/external snapshots(block only).
2) abstract a function for internal/external live vmstate save.
3) assemble above functions at will at above layer.

 patch for 1) is sent at
http://lists.nongnu.org/archive/html/qemu-devel/2012-12/msg02393.html

  I agree that code should be merged as much as possible, just hope
my patch wouldn't conflict with yours patch about vmstate save.
For vmstate it have a issue about how to limit the file size to be
written, that is predict the size to write. We may need a discuss about
that.