linux-kernel - Re: [PATCH] vhost-blk: Add vhost-blk support v5

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Message-ID: <20121126151416.GB21016@redhat.com>
Date:	Mon, 26 Nov 2012 17:14:16 +0200
From:	"Michael S. Tsirkin" <mst@...hat.com>
To:	Asias He <asias@...hat.com>
Cc:	Rusty Russell <rusty@...tcorp.com.au>,
	Christoph Hellwig <hch@...radead.org>, kvm@...r.kernel.org,
	virtualization@...ts.linux-foundation.org, axboe@...nel.dk,
	linux-kernel@...r.kernel.org, David Miller <davem@...emloft.net>
Subject: Re: [PATCH] vhost-blk: Add vhost-blk support v5

On Mon, Nov 19, 2012 at 10:26:41PM +0200, Michael S. Tsirkin wrote:
> > 
> > Userspace bits:
> > -----------------------------
> > 1) LKVM
> > The latest vhost-blk userspace bits for kvm tool can be found here:
> > git@...hub.com:asias/linux-kvm.git blk.vhost-blk
> > 
> > 2) QEMU
> > The latest vhost-blk userspace prototype for QEMU can be found here:
> > git@...hub.com:asias/qemu.git blk.vhost-blk
> > 
> > Changes in v5:
> > - Do not assume the buffer layout
> > - Fix wakeup race
> > 
> > Changes in v4:
> > - Mark req->status as userspace pointer
> > - Use __copy_to_user() instead of copy_to_user() in vhost_blk_set_status()
> > - Add if (need_resched()) schedule() in blk thread
> > - Kill vhost_blk_stop_vq() and move it into vhost_blk_stop()
> > - Use vq_err() instead of pr_warn()
> > - Fail un Unsupported request
> > - Add flush in vhost_blk_set_features()
> > 
> > Changes in v3:
> > - Sending REQ_FLUSH bio instead of vfs_fsync, thanks Christoph!
> > - Check file passed by user is a raw block device file
> > 
> > Signed-off-by: Asias He <asias@...hat.com>
> 
> Since there are files shared by this and vhost net
> it's easiest for me to merge this all through the
> vhost tree.

Hi Dave, are you ok with this proposal?

-- 
MST
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