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SubjectRe: [PATCH] virtio-blk: allow toggling host cache between writeback and writethrough
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On Thu, 2012-07-05 at 08:47 +0200, Paolo Bonzini wrote:
> Il 04/07/2012 23:11, Sasha Levin ha scritto:
> > There are two things going on here:
> > 1. Rename VIRTIO_BLK_F_FLUSH to VIRTIO_BLK_F_WCE
> > 2. Add a new VIRTIO_BLK_F_CONFIG_WCE
> >
> > I'm concerned that the first change is going to break compilation for
> > any code that included linux/virtio-blk.h and used VIRTIO_BLK_F_FLUSH.
>
> That would be nlkt, right? :)

nlkt, lguest, and probably others.

linux/virtio_blk.h is a public kernel header, which is supposed to be
used from userspace - so I assume many others who implemented virtio-blk
for any reason took advantage of that header.



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