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Date: Tue, 17 Jul 2012 18:09:28 +0300
From: "Michael S. Tsirkin" <mst@redhat.com>
To: Asias He <asias@redhat.com>
Cc: linux-kernel@vger.kernel.org, Alexander Viro <viro@zeniv.linux.org.uk>,
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Subject: Re: [PATCH RESEND 0/5] Add vhost-blk support
Message-ID: <20120717150928.GB11587@redhat.com>
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On Fri, Jul 13, 2012 at 04:55:06PM +0800, Asias He wrote:
> 
> 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.

-- 
MST