Re: [Qemu-devel] [RFC] Disk integrity in QEMU

[Avi Kivity]

Laurent Vivier wrote:
> > I am assuming that we will provide true O_DIRECT support soon.
> >     
>
> If you remember, I tried to introduce zero copy when I wrote the
> "cache=off" patch:
>
> http://thread.gmane.org/gmane.comp.emulators.qemu/22148/focus=22149
>
> but it was not correct (see Fabrice comment).
>   

Yes, this is not trivial, especially if we want to provide good support 
for all qemu targets.

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