Re: [virtio] Re: [virtio-dev] Re: [virtio-comment] Problems with VIRTIO-4 and writeback only disks

[Paolo Bonzini <pbonzini@redhat.com>]

Il 02/10/2013 02:50, Rusty Russell ha scritto:
>> > I would make this even stronger, like "It is undefined whether a disk
>> > operates in writeback or writethrough mode after a guest announces lack
>> > of support for VIRTIO_BLK_F_FLUSH".
> At this point it's documenting historical behavior, rather than
> proscribing it.  How about we simply note:
> 
> Some older legacy devices did not operate in writethrough mode even
> after a guest announced lack of support for VIRTIO_BLK_F_FLUSH.

That's fine.

Paolo