On Tue, Jul 17, 2012 at 4:09 PM, Michael S. Tsirkin [off-list ref] wrote:

On Fri, Jul 13, 2012 at 04:55:06PM +0800, Asias He wrote:

quoted

Hi folks,

[I am resending to fix the broken thread in the previous one.]

This patchset adds vhost-blk support. vhost-blk is a in kernel virito-blk
device accelerator. Compared to userspace virtio-blk implementation, vhost-blk
gives about 5% to 15% performance improvement.

Same thing as tcm_host comment:

        It seems not 100% clear whether this driver will have major
        userspace using it. And if not, it would be very hard to support a
        driver when recent userspace does not use it in the end.

        I think a good idea for 3.6 would be to make it depend on
        CONFIG_STAGING.  Then we don't commit to an ABI.  For this, you can add
        a separate Kconfig and source it from drivers/staging/Kconfig.  Maybe it
        needs to be in a separate directory drivers/vhost/staging/Kconfig.

I Cc'd the list of tcm_host in the hope that you can cooperate on this.

Adding it to staging allows more people to try it out, so that's a
good thing.  If I get a moment to play with it I'll let you know the
results.

Stefan