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

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Date:	Wed, 28 Nov 2012 11:26:48 -0500 (EST)
From:	David Miller <davem@...emloft.net>
To:	mst@...hat.com
Cc:	asias@...hat.com, rusty@...tcorp.com.au, hch@...radead.org,
	kvm@...r.kernel.org, virtualization@...ts.linux-foundation.org,
	axboe@...nel.dk, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] vhost-blk: Add vhost-blk support v5

From: "Michael S. Tsirkin" <mst@...hat.com>
Date: Mon, 26 Nov 2012 17:14:16 +0200

> 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?

I have no problems with this, for networking parts:

Acked-by: David S. Miller <davem@...emloft.net>
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