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

[nuitari-qemu]

> >  I do not believe that this means that the data is still sitting in the
> >  host cache.  I realize it may not yet be on a disk, but, at a minimum,
> >  I would expect that is has been sent to the storage controller.  Do you
> >  consider the hosts cache to be part of the storage subsystem ?
>
> The fact that the virtualization layer has a cache is really not that 
> unusual.

Wouldn't it be better to have cache=on/off control wether or not qemu/kvm 
does any caching on their own and have a different configuration option 
for O_DIRECT / O_DSYNC on the diskfiles?