Re: [PATCH RESEND 0/5] Add vhost-blk support

From: Michael S. Tsirkin
Date: Fri Jul 20 2012 - 15:30:13 EST

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.
> Asias He (5):
> aio: Export symbols and struct kiocb_batch for in kernel aio usage
> eventfd: Export symbol eventfd_file_create()
> vhost: Make vhost a separate module
> vhost-net: Use VHOST_NET_FEATURES for vhost-net
> vhost-blk: Add vhost-blk support

OK so given the state it's in, and assuming you think it is helpful
to let it mature in tree and not out of tree, I think it's
reasonable to try to do it like tcm_vhost is going to do it:
- send me changes to vhost core ASAP (and keep it minimal, e.g.
use your own header file to export to userspace)
- for other stuff - put in drivers/staging, and ask Greg to merge

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