On Mon, Aug 16, 2010 at 06:52:00PM +0200, Tejun Heo wrote: > From: Tejun Heo <tj@xxxxxxxxxx> > > Remove now unused REQ_HARDBARRIER support and implement REQ_FLUSH/FUA > support instead. A new feature flag VIRTIO_BLK_F_FUA is added to > indicate the support for FUA. I'm not sure it's worth it. The pure REQ_FLUSH path works not and is well tested with kvm/qemu. We can still easily add a FUA bit, and even a pre-flush bit if the protocol roundtrips matter in real life benchmarking. -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
