Re: [virtio-dev] [PATCH v3] VIRTIO_F_IO_BARRIER: use I/O barriers in driver

[Tiwei Bie <tiwei.bie@intel.com>]

On Tue, May 15, 2018 at 10:40:44AM +0100, Stefan Hajnoczi wrote:
> On Thu, May 10, 2018 at 11:41:26PM +0800, Tiwei Bie wrote:
> > There will be hardware virtio devices in the future, which
> > require drivers to use the barriers suitable for I/O devices,
> > compared with software virtio devices which just require
> > drivers to use the barriers suitable for CPU cores.
> > 
> > To fix the ordering issue for hardware virtio devices, add
> > a new feature: VIRTIO_F_IO_BARRIER. When negotiated, driver
> > will use the barriers suitable for I/O devices.
> > 
> > Signed-off-by: Tiwei Bie <tiwei.bie@intel.com>
> > Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
> > ---
> > v2 -> v3:
> > - Update the feature bits allocation (Stefan);
> > 
> > v1 -> v2:
> > - Rebase to the latest spec (MST);
> > - Use a smaller textwidth (according to _vimrc);
> > 
> > RFC -> v1:
> > - Use plural (Stefan);
> > - Add more details (Stefan);
> > 
> >  content.tex | 20 ++++++++++++++++++--
> >  1 file changed, 18 insertions(+), 2 deletions(-)
> 
> Thanks for your patience!
> 
> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>

It's my pleasure. Thanks for your review! :)

Best regards,
Tiwei Bie