Re: [Qemu-devel] [RFC] qemu snapshot enchancement

[Dietmar Maurer]

>    The solution seems OK in improving the performance, I just wondering if it
> is possible to put it in lower level component, not qemu? It will make qemu
> block layer more complicate, 

Not that I am aware off - it just add a few lines to block.c, and only uses 
existing
functionality already used inside qemu.

> and since it can ignore the format so it is more
> likely a storage dedicated function, so could u check if it can be offloaded
> from qemu?

The whole trick is to do it inside qemu, to be independent of storage type.