[dm-devel] [PATCH] block: silently error unsupported empty barriers too

[Alasdair G Kergon]

On Thu, Aug 06, 2009 at 12:14:17PM +0100, Mark McLoughlin wrote:
> We should error all barriers, even empty barriers, on devices like
> virtio_blk which don't support them.
 
Have you considered whether or not virtio_blk actually needs to
support empty barriers?

Alasdair